Wednesday, 6 March 2019

11th Class Solved MCQs Biology Chapter Wise Notes Punjab Board

Solved MCQs of Biology Class 1st Year For the up coming exams and tests. Here i am sharing with the students of the Biology for the PPSC exams also and also for the Biology exams for the final tests Papers. Many of the exams of the chapter wise Biology are repeated here i am sharing full book of the Biology MCQs.

File:Chapter Wise 11th Class Punjab Board Biology MCQs.svg
Biology MCQs Solved Notes





11th Class Biology Introduction MCQs Chapter 1 Punjab Board

The number of species of organisms, currently known to science, is 1: PastQuestionHere ?
  1. 2,500,000
  2. 1,500,000
  3. 2,000,000
  4. 1,000,000
A
Question 2: A large regional community primarily determined by climate is a ?
  1. Biome
  2. Triome
  3. Bichome
  4. Trichome
A
Question 3: An observer organizes observations into data form and gives a statement as per experience and background knowledge of the event. This statement is the ?
  1. Supposition
  2. Suggestion
  3. Hypothesis
  4. Theory
C
Question 4: Cowpox pus is known as ?
  1. Vaga
  2. Puspox
  3. Parapox
  4. Vacca
D
Question 5: The microscopic study of tissues is called ?
  1. Virology
  2. Bacteriology
  3. Microbiology
  4. Histology
D
Question 6: The study of distribution of organisms in nature is called ?
  1. Geography
  2. Zoogeography
  3. Ecology
  4. Wilde life
B
Question 7: The number and variety of species in a place is called ?
  1. Community
  2. Diversity
  3. Biodiversity
  4. Population
C
Question 8: The study of hereditary characters transmitted from the parents to the off springs is called ?
  1. Biotechnology
  2. Genetics
  3. Genetic engineering
  4. Heredity
B
Question 9: The reasoning from the general to specific is called ?
  1. Deductive
  2. Scientific
  3. Theoretical
  4. Inductive
A
Question 10: Hydrogen, carbon, oxygen, nitrogen, phosphorous and sulphur are the most common atoms found in ?
  1. Periodic table
  2. Soil
  3. Water
  4. Biological molecules
D
Question 11: The groups of similar cells are organized into loose sheets or bundles performing similar functions are called ?
  1. Tissues
  2. Organs
  3. Organelles
  4. Systems
A
Question 12: Defective gene is changed by the normal gene in ?
  1. Chemotherapy
  2. Gene therapy
  3. Radiotherapy
  4. Physiotherapy
B
Question 13: A statement made from a hypothesis which has been tested by many experiments is called ?
  1. Presumption
  2. Deduction
  3. Theory
  4. Law
C
Question 14: Various careful estimates put the total number of species between ?
  1. 15 and 30 millions
  2. 10 and 20 millions
  3. 5 and 20 millions
  4. 5 and 30 millions
D
Question 15: Many diseases such as polio, whooping cough, measles, mumps etc., can be easily controlled by ?
  1. None
  2. Vaccination
  3. “Shots”
  4. Both (a) and (b)
D
Question 16: The study of social behavior and communal life of human being is called ?
  1. Social biology
  2. Communal biology
  3. Human biology
  4. Behavioural biology
A
Question 17: The number of species identified so far is ?
  1. 10 million
  2. 5 million
  3. 2.5 million
  4. 1.5 million
C

11th Class Biology Biological Molecules MCQs Chapter 2 Punjab Board

Question 1: The specific heat of vaporization of water is ------------- Kcal/kg ?
  1. 574
  2. 674
  3. 474
  4. 374
A
Question 2: Fate and oils have a specific gravity of about ?
  1. 0.16
  2. 0.10
  3. 0.8
  4. 0.12
C
Question 3: The specific heat capacity of water is ?
  1. 4
  2. 2
  3. 1
  4. 3
C
Question 4: On hydrolysis, oligosaccharides yield monosaccharides from ?
  1. Ten to twenty
  2. One to ten
  3. Two to twenty
  4. Two to ten
D
Question 5: Our blood normally contains glucose ?
  1. 0. 06%
  2. 0. 08%
  3. 0. 8%
  4. 0. 6%
B
Question 6: In different organisms, water varies from ?
  1. 55 to 79%
  2. 65 to 89%
  3. 40 to 80%
  4. 56 to 66%
B
Question 7: Animal fats are solid at ?
  1. 10 ̊C
  2. 20 ̊C
  3. Room temperature
  4. 30 ̊C
C
Question 8: Carbon and hydrogen bond (C-H bond) is the potential source of ------------- for cellular activities ?
  1. Solar energy
  2. Chemical energy
  3. Heat energy
  4. Kinetic energy
B
Question 9: The covalent bond between two monosaccharides is called ?
  1. Ester bond
  2. Hydrogen bond
  3. Peptide bond
  4. Glycosidic bond
D
Question 10: Esters of fatty acids and alcohol are ?
  1. Sphingolipids
  2. Acylglycerols
  3. Terpenoids
  4. Waxes
B
Question 11: The first microbe to have the genome completely sequenced is ?
  1. E. coli
  2. Pneumococcus
  3. Salmonella typhi
  4. Haemophilus influenza
D
Question 12: The isoprenoid unit by condensation gives rise to ?
  1. Rubber
  2. Carotenoids
  3. All (a), (b), (c)
  4. Steroids
C
Question 13: The melting point of butyric acid ?
  1. -4.7 ̊C
  2. -5 ̊C
  3. -7.9 ̊C
  4. 8 ̊C
C
Question 14: The melting point of palmitic acid is ?
  1. 27.9 ̊C
  2. 63.1 ̊C
  3. 13.5 ̊C
  4. 36.7 ̊C
B
Question 15: Fatty acids which contain up to 6 double bonds are called ?
  1. Ringed fatty acids
  2. Straight fatty acids
  3. Saturated fatty acids
  4. Unsaturated fatty acids
D
Question 16: For the synthesis of 10 g of glucose 717.6 Kcal of -------- energy is used ?
  1. Potential
  2. Mechanical
  3. Solar
  4. Chemical
C
Question 17: At 25 ̊C the concentration of each of H⁺ and OH⁻ ions in pure water is about ?
  1. 8⁻⁷ mole/liter
  2. 12⁻⁷ mole/liter
  3. 6⁻⁷ mole/liter
  4. 10⁻⁷ mole/liter
D

11th Class Biology Enzymes MCQs Chapter 3 Punjab Board

Question 1: The optimum pH of enterokinase is ?
  1. 7.50
  2. 5.50
  3. 3.50
  4. 1.50
B
Question 2: Lock and key model was modified by ?
  1. None of these
  2. Koshland
  3. Dr. Sthal
  4. R-Fisher
B
Question 3: An activated enzyme consisting of polypeptide chain and a cofactor is known as ?
  1. Holoenzyme
  2. Zymogen
  3. Apoenzyme
  4. Coenzyme
A
Question 4: Reversible inhibitors form weak linkage with the ?
  1. Substrate
  2. Reactant
  3. Enzyme
  4. Product
C
Question 5: Heat provides activation energy and therefore, chemical reactions are accelerated at ?
  1. None
  2. Low temperature
  3. Moderate temperature
  4. High temperature
D
Question 6: The detachable co-factor is known as an activator if it is ?
  1. Non-ionic
  2. Inorganic ion
  3. Organic ion
  4. Both (a) and (c)
B
Question 7: At low concentration of substrate the reaction rate is directly proportional to the available ?
  1. Substrate
  2. Enzyme
  3. Product
  4. Reactant
A
Question 8: The catalytic activity of enzymes is restricted to a small portion of the enzyme known as ?
  1. Catalytic site
  2. Binding site
  3. Active site
  4. Non-binding site
C
Question 9: Pepsin in stomach will work maximally at ?
  1. 37 ̊C
  2. 40 ̊C
  3. 35 ̊C
  4. 30 ̊C
A
Question 10: Every enzyme functions most effectively over a narrow range of pH known as the ?
  1. Minimum pH
  2. Maximum pH
  3. Optimum pH
  4. Best pH
C
Question 11: The functional specificity of an enzyme is a consequence of its ?
  1. Configuration
  2. (a) and (b)
  3. Substrate
  4. Specific chemistry
B
Question 12: If the non-protein part is covalently bonded to enzyme, it is known as a ?
  1. Co-factor
  2. Coenzyme
  3. Holoenzyme
  4. Prosthetic group
D
Question 13: Which of the following is in correct about enzymes ?
  1. Enzymes are proteins
  2. Enzymes presence affect the nature of end products
  3. Some enzymes required cofactor
  4. They lower activation energy
B
Question 14: If non-protein part is loosely attached to the protein part it is know n as ?
  1. Holoenzyme
  2. Co-factor
  3. Prosthetic group
  4. Coenzyme
D
Question 15: According to Lock and Key Model the active site is ?
  1. Soft structure
  2. Terrible structure
  3. Rigid structure
  4. Attractive structure
C
Question 16: Pepsin is released in the form of pepsinogen packed is as ?
  1. Lysosomes
  2. Ribosomes
  3. Chromosomes
  4. Peroxisomes
A
Question 17: The optimum pH of Salivary amylase is ?
  1. 4.80
  2. 6.80
  3. 2.80
  4. 8.80
B

11th Class Biology The Cell MCQs Chapter 4 Punjab Board

Question 1: Cell wall is composed of ?
  1. Primary wall
  2. All (a), (b), (c)
  3. Middle lamella
  4. Secondary wall
B
Question 2: The attachment of two units of ribosome is controlled by the presence of ?
  1. Co⁺⁺
  2. Ca⁺⁺
  3. Mg⁺⁺
  4. Fe⁺⁺
C
Question 3: Movement of materials against concentration gradient is termed as ?
  1. Osmosis
  2. Active transport
  3. Passive transport
  4. Diffusion
B
Question 4: Glyoxisomes are most abundant in ?
  1. Animal embryos
  2. Microorganisms
  3. Plant seedlings
  4. Fungal hyphae
C
Question 5: Chemically secondary wall is composed of ?
  1. All (a), (b), (c)
  2. Inorganic salts
  3. Silica
  4. Waxes
A
Question 6: In 1831, the presence of nucleus in the cell was reported by ?
  1. Robert Hooke
  2. Robert Brown
  3. Robert Mug Abe
  4. Robert Koch
B
Question 7: Intermediate filaments play role in maintenance of ?
  1. Cell turgor
  2. Cell size
  3. Cell organelles
  4. Cell shape
D
Question 8: Cell wall is secreted by the ?
  1. Glyoxismes
  2. Protoplasm
  3. Centrioles
  4. Nucleoplasm
B
Question 9: The cells which secrete their hormones are ?
  1. Bone cells
  2. Nerve cells
  3. Blood cells
  4. Gland cells
D
Question 10: The resolution of electron microscope range between ?
  1. 3-6 Angstrom
  2. 2-6μm
  3. 3-9 mm
  4. 2-4 Angstrom
D
Question 11: The factory of ribosome is the nucleolus, while that of protein synthesis is the ?
  1. Peroxisomes
  2. Glyoxisomes
  3. Lysosomes
  4. Ribosomes
D
Question 12: Under light microscope, chloroplasts appear to be heterogeneous structures with small granules known as ?
  1. Grana
  2. Pellet
  3. Morsel
  4. Crumb
A
Question 13: The fluid which surrounds the thylakoid is called ?
  1. Medium
  2. Milieu
  3. Matrix
  4. Stroma
D
Question 14: The numbers of chromosomes in fruit fly, Drosophila melanohaster, is ?
  1. 26
  2. 16
  3. 8
  4. 48
C
Question 15: The cell theory was finally formulated by ?
  1. Schleiden and Schwann
  2. Sameer and Shamshair
  3. Watson and Crick
  4. Omer and Ali
A
Question 16: Membrane bounded green pigment containing bodies present in the cells are called as ?
  1. Plastids
  2. Chromosplasts
  3. Leucoplasts
  4. Chloroplasts
A
Question 17: A group of ribosome’s attached to mRNA are known as ?
  1. Glyoxisomes
  2. Polysomes
  3. Lysosomes
  4. Peroxisomes
B

11th Class Biology Variety of Life MCQs Chapter 5 Punjab Board

Question 1: The branch which deals with the study of virus is known as ?
  1. Venomology
  2. Biovirology
  3. Poisonolgy
  4. Virology
D
Question 2: The overall structure of T₄ studied by electron microscopy, resembles that of tadpole consisting of ?
  1. Head, neck, trunk and tail
  2. Head, neck and tail
  3. Head and tail
  4. Trunk and tail
C
Question 3: A temperate phage may exist as ?
  1. Capsid
  2. Prophage
  3. Retrovirus
  4. Viroid
B
Question 4: In five kingdom systems of classification developed by Whitaker, member of the kingdom plantae are autotrophic, eukaryotic and ?
  1. Have sexual reproduction
  2. Multicellular
  3. Motile
  4. None
A
Question 5: Herpes virus is a ?
  1. DNA-RNA virus
  2. RNA virus
  3. RNA-DNA virus
  4. DNA virus
D
Question 6: Smallpox is caused by ?
  1. Protozoa
  2. Virus
  3. Fungi
  4. Bacteria
B
Question 7: Which one of the following is not a viral disease ?
  1. Small pox
  2. Tetanus
  3. Cow pox
  4. Mumps
B
Question 8: Lysozyme is also made by ?
  1. Viral protein
  2. Viral RNA
  3. Viral DNA
  4. All (a), (b), (c)
C
Question 9: Paramyxoviruses cause the disease ?
  1. Herpes simplex
  2. Polio
  3. Influenza
  4. Mumps and measles
D
Question 10: A group of natural populations which can interbreed freely among themselves and produce fertile off springs, but are reproductively isolated from all other such groups in nature is a ?
  1. Individual
  2. Genus
  3. Community
  4. Species
D
Question 11: Order includes related ?
  1. Species
  2. Families
  3. Genera
  4. Classes
B
Question 12: The major call infected by HIV is the Helper ?
  1. B- lymphocyte
  2. T- lymphocyte
  3. A-monocyte
  4. T- monocyte
B
Question 13: The word virus is derived from Latin word venome meaning ?
  1. Toxic fluid
  2. Harmful fluid
  3. Poisonous fluid
  4. Teasing fluid
C
Question 14: About 25 minutes after initial infection, new bacteriophages formed are approximately ?
  1. 600
  2. 200
  3. 100
  4. 300
B
Question 15: RNA tumor viruses have in diameter about ?
  1. 100 nm
  2. 150 nm
  3. 200nm
  4. 10 nm
A
Question 16: Influenza virus is ?
  1. Non- enveloped RNA virus
  2. Enveloped DNA virus
  3. Enveloped RNA virus
  4. Non-enveloped DNA virus
B
Question 17: Mumps and Measles viruses are ?
  1. DNA-RNA viruses
  2. RNA-DNA viruses
  3. RNA viruses
  4. DNA viruses
C

11th Class Biology Kingdom Prokaryotae (Monera) MCQs Chapter 6 Punjab Board

Question 1: When tuft of flagella is present only at one pole of bacteria the condition is called ?
  1. Amphtrichous
  2. Atrichous
  3. Monotrichous
  4. Lophotrichous
D
Question 2: The cell walls of most bacteria have a unique macromolecule called ?
  1. Polysaccharide
  2. Lipoprotein
  3. Teichoic acid
  4. Peptidoglycan
D
Question 3: An average coccus is about -------------- micrometer (μm) in diameter ?
  1. 1.0 – 2.0
  2. 0.5 – 1. 0
  3. 0.2 – 0 .7
  4. 0.1 - 0.5
A
Question 4: When tuft of flagella at each of two poles is present in bacteria, the condition is called ?
  1. Lophotrichous
  2. Peritrichous
  3. Amphitrichous
  4. Atrichous
C
Question 5: A material obtained by the partial decay of plants and animals is ?
  1. Sterols
  2. Humus
  3. Hunch
  4. Murein
B
Question 6: The smallest bacteria are approximately the size of the largest viruses i.e ?
  1. Poxviruses
  2. Parvoviruses
  3. Adenoviruses
  4. Paramyxoviruses
A
Question 7: ------------ is a micraerophilic bacterium ?
  1. Campylobacter
  2. Pseudomonas
  3. Nitrobacter
  4. Spirocheta
A
Question 8: Reserve food material in cyanobacteria is ?
  1. Glycogen
  2. Cellulose
  3. All (a), (b), (c)
  4. Starch
A
Question 9: The condition in which Bacteria are without any flagella is called ?
  1. Antrichous
  2. Monotrichous
  3. Lophotrichous
  4. Amphtrichous
A
Question 10: Hollow, nonhelical, flamentous appendages present in bacteria are ?
  1. Both (a) and (b)
  2. Gram negative bacteria
  3. None
  4. Gram positive bacteria
B
Question 11: Cocci bacteria very rarely have ?
  1. Cirri
  2. Mitochondria
  3. Flagella
  4. Cilia
C
Question 12: Cyanobacteria are photosynthetic partner in most of ------------- association ?
  1. Fungal
  2. Lichen
  3. Algal
  4. Plant
B
Question 13: Bacteria that can synthesize organic compounds from simple inorganic substances are known as ?
  1. Heterotrophs
  2. Autotrophs
  3. Symbionts
  4. Lichen
B
Question 14: Nucleoid is visible in the light microscope after staining with ?
  1. Gram stain
  2. Feulgen stain
  3. Haematoxylin
  4. Eosin stain
B
Question 15: Primary function of flagella is to help in ?
  1. Rest
  2. Motility
  3. Running
  4. Walking
B
Question 16: Slime provides greater pathogenicity by bacteria and protects them against ?
  1. Invasion
  2. Both (a) and (b)
  3. Pinocytosis
  4. Phagocytosis
D
Question 17: Dormant, thick-walled, desiccation resistant forms present in bacteria are ?
  1. Exospores
  2. Endospores
  3. Cysts
  4. Both (a) and (b)
C

11th Class Biology The Kingdom Protista (or Protoctista) MCQs Chapter 7 Punjab Board

Question 1: Choanoflagellates are sessile marine or freshwater flagellates which are attached by a ?
  1. Twig
  2. Stalk
  3. Clutch
  4. Holdfast
B
Question 2: Diatoms are very important in ?
  1. Aquatic food chains
  2. Terrestrial food chains
  3. Electron transport
  4. Respiratory chains
A
Question 3: Apicomplexans are a large group of ----------- protozoa ?
  1. Intestinal
  2. Aquatic
  3. Terrestrial
  4. Parasitic
D
Question 4: Oomycotes are close relatives of the ?
  1. Bacteria
  2. Protozoa
  3. Fungi
  4. Algae
C
Question 5: Which is a brown alga having blades, stipes and holdfast ?
  1. Acetabularia
  2. Chondrus
  3. Laminaria
  4. Ceratium
C
Question 6: Water regulation in freshwater ciliates is controlled by special organelles called ?
  1. Lysosomes
  2. Vacuoles
  3. Contractile vacuoles
  4. Golgi apparatus
C
Question 7: To accommodate protists, Margulis and Schwartz have listed phyla ?
  1. 57
  2. 172
  3. 27
  4. 77
C
Question 8: RNA sequencing also indicates that green algae and the plants form a ?
  1. Monophyletic lineage
  2. Biphyletic lineage
  3. None
  4. Polyphyletic lineage
A
Question 9: Classification of algae into phyla is largely based on the composition of ?
  1. Cell wall
  2. Cytoplasm
  3. Pigment
  4. Cell membrane
C
Question 10: Oomycotes include a number of pathogenic organisms, including downy mildew ?
  1. Rhodotrula
  2. Physarum polycephalum
  3. Phytophthora infestans
  4. Candida albicans
C
Question 11: What is deposited in the shell of diatoms ?
  1. Calcium
  2. Pectin
  3. Silica
  4. Lignin
C
Question 12: John Hogg separated blue green algae and bacteria (prokaryotes) from nucleated protists and placed them in a separate group called Monera, within the kingdom ?
  1. Plantae
  2. Protista
  3. Animalia
  4. Fungi
B
Question 13: Tests of foraminifera are made of ?
  1. Silica
  2. Spongin
  3. Calcium
  4. Iron
C
Question 14: Which are the major producers in aquatic ecosystem ?
  1. Euglenoids
  2. Green algae
  3. Diatoms
  4. Red algae
C
Question 15: Apicomplexans lack specific structures for locomotion but move by ?
  1. Gliding
  2. Flexing
  3. Contracting
  4. Bending
B
Question 16: The feeding stage of a slime mold is a ?
  1. Blastostyle
  2. Gastrozooid
  3. Plasmodium
  4. Sporozoite
C
Question 17: Desmids have cells with ?
  1. Four fragments
  2. Three pieces
  3. Single unit
  4. Two halves
D

11th Class Biology Fungi MCQs Chapter 8 Punjab Board

Question 1: Classification of fungi into four main groups is based primarily on ?
  1. Modes of nutrition
  2. The type of their sexual reproductive structures
  3. Methods of reproduction
  4. Both (a) and (b)
D
Question 2: 15-50% of world’s fruit is lost each year due to ?
  1. Algal attack
  2. Fungal attack
  3. Bacterial attack
  4. American attack
B
Question 3: Reindeer moss is used as food for reindeers and some other large animals in ?
  1. Arctic region
  2. Boreal region
  3. Subarctic region
  4. All (a), (b), (c)
D
Question 4: Many fungi can tolerate temperature extremes –5 ̊C below freezing and some can tolerate ?
  1. 50 ̊C or more
  2. 70 ̊C or more
  3. 40 ̊C or more
  4. 60 ̊C or more
A
Question 5: The oyster mushroom paralyses the ?
  1. Earthworms
  2. Nereis
  3. Nematodes
  4. Leeches
C
Question 6: Fungi, in their cell wall, contain ?
  1. Pectin
  2. Chitin
  3. Cellulose
  4. Lignin
B
Question 7: Puccinia species are most common ?
  1. Smut fungi
  2. Spitting fungi
  3. Bracket fungi
  4. Rust fungi
D
Question 8: Lovastatin is used for lowering blood ?
  1. Glucose
  2. Cholesterol
  3. Uric Acid
  4. Pressure
B
Question 9: Histoplasmosis is a serious infection of ?
  1. Liver
  2. Lungs
  3. Heart
  4. Kidney
B
Question 10: Citric acid is also obtained from some species of ?
  1. Pilobolus
  2. Rhizopus
  3. Penicillium
  4. Aspergillus
D
Question 11: The number of species of organisms called “fungi” which are known are approximately ?
  1. 10,000
  2. 100,000
  3. 1,000
  4. 100
B
Question 12: ---------- are ecologically very important as bio-indicators of air pollution ?
  1. Mycorrhizae
  2. Commensals
  3. Lichens
  4. Predators
C
Question 13: The oyster mushroom (pleurotus ostreatus) is a ?
  1. Carnivorous
  2. Herbivorous
  3. Predatory
  4. Both (a) and (b)
D
Question 14: About -------------- species of mushrooms are edible ?
  1. 100
  2. 400
  3. 300
  4. 200
D
Question 15: ---------- is used to relieve one kind of headache migraine ?
  1. Aflatoxin
  2. Griseofulvin
  3. Penicillin
  4. Ergotine
D
Question 16: Some strains of Aspergillus flavus produce one of the most carcinogenic mycotoxins, called ?
  1. Aspergotoxins
  2. Alfatoxins
  3. Alphatoxins
  4. Carcinotoxins
B
Question 17: Fungi can tolerate a wide range of pH from ?
  1. 2-9
  2. 3-10
  3. 1-13
  4. 4-11
A

11th Class Biology Kingdom Plantae MCQs Chapter 9 Punjab Board

Question 1: At its longest diameter, size of prothallus is about ?
  1. 8cm
  2. 8mm
  3. 8μm
C
Question 2: The archegonium consists of ?
  1. Ovary and neck
  2. Ovary and style
  3. Venter and neck
  4. Venter and stalk
C
Question 3: The earliest group of vascular plants is ?
  1. Lycopsida
  2. Sphenopsida
  3. Pteropsida
  4. Psilopsida
D
Question 4: Double fertilization is a special process found in ?
  1. Angiosperms
  2. Gymnosperms
  3. Bryophytes
  4. Ferns
A
Question 5: A flower is a modified shoot which consists of ?
  1. Thalamus or torus
  2. All (a), (b), (c)
  3. Pedicel
  4. Floral leaves
B
Question 6: Small leaves having a single undivided vein are called ?
  1. Heterophylls
  2. Neutrophils
  3. Microphylls
  4. Megaphylls
C
Question 7: ----------- make up 235,000 of the 360,000 known species of plants ?
  1. Bryophytes
  2. Gymnosperms
  3. Ferns
  4. Angiosperms
D
Question 8: Trachephytes are further sub-divided into ?
  1. 4 subdivisions
  2. 8 subdivisions
  3. 2 subdivisions
  4. 3 subdivisions
A
Question 9: The leaves are called fronds in class ?
  1. Filicineae
  2. None
  3. Gymnospermae
  4. Angiospermae
A
Question 10: All seed producing plants are called ?
  1. Pteridophytes
  2. Trachaeophytes
  3. Spermatophytes
  4. Bryophytes
C
Question 11: In Anthoceros sporophyte at the junction of foot and spore-producing region, there is a band of ?
  1. Phloem
  2. Meristematic tissue
  3. Xylem
  4. Paraphysis
B
Question 12: The process of evolution of leaf was very slow and gradual which completed in more than ?
  1. 15-20 m years
  2. 5-15 m years
  3. 20-25 m years
  4. 1-10 m years
A
Question 13: At the tips of the branches in psilopsida are produced ?
  1. Sporangia
  2. Antheridia
  3. Zygote
  4. Archegonia
A
Question 14: Known species of plants are about ?
  1. 460, 000
  2. 360,000
  3. 160,000
  4. 260,000
A
Question 15: A haploid spermatozoid (entherozoid) fuses with haploid egg or oosphere to produce ?
  1. Zygote
  2. Both (a) and (b)
  3. Haploid oospore
  4. Diploid oospore
B
Question 16: Clitoria ternatea is used against ?
  1. Snake bite
  2. Insect bite
  3. Horse bite
  4. Dog bite
A
Question 17: --------- is a dry, indehiscent fruit in which fruit wall is completely, fused with seed coat ?
  1. Dryopsis
  2. Faryopsis
  3. Synopsis
  4. Caryopsis
D

11th Class Biology Kingdom Animalia MCQs Chapter 10 Punjab Board

Question 1: The process of shedding skeleton is called ?
  1. Ecdysis
  2. All (a),(b),(c)
  3. Epiboly
  4. Moulting
B
Question 2: The group of ancient fish which showed modification of aquatic breathing system by developing lungs are ?
  1. Dipnoi
  2. Hagfishes
  3. Trout
  4. Kkates
A
Question 3: The body cavity of Nematoda ?
  1. Coelom
  2. Pseudocoelom
  3. Blastocoel
  4. Haemocoel
B
Question 4: Loligo, Sepia and Octopus are examples of class ?
  1. Oligochaeta
  2. Bivalvia
  3. Cephalopoda
  4. Gastropoda
C
Question 5: The animal can be divided into two equal parts by an imaginary line only in one plane is ?
  1. Asymmetric
  2. None
  3. Bilateral
  4. Radial
C
Question 6: The largest invertebrate animal is ?
  1. Physalia
  2. Octopus
  3. Cuttle Fish
  4. Giant squid
D
Question 7: The systems such as integumentary and nervous develop from ?
  1. None
  2. Mesoderm
  3. Endoderm
  4. Ectoderm
D
Question 8: Flame cells are the excretory cells in ?
  1. Round worms
  2. Flat worms
  3. Segmented worms
  4. Insects
B
Question 9: Animals that have their body cavity filled with parenchyma mesoderm are ?
  1. Coeomates
  2. Procoelomates
  3. Pseudocoelomates
  4. Acoleomates
D
Question 10: Example of placental mammal is ?
  1. Bat
  2. Kangaroo
  3. None
  4. Platypus
A
Question 11: A group that has a combination of both invertebrate and chordate characteristics is ?
  1. Urochordate
  2. Echinodermate
  3. Hemichordate
  4. Cephalochordate
C
Question 12: Pinacoderm is made up of ?
  1. Pinacophores
  2. Pinacocytes
  3. Amoebocytes
  4. Choanocytes
B
Question 13: Rounds worms belong to phylum ?
  1. Annelida
  2. Arthropoda
  3. Nematoda
  4. Mollusca
C
Question 14: Earliest fossil bird is ?
  1. Cotylosaur
  2. Kiwi
  3. Pelycosaur
  4. Archaeopteryx
D
Question 15: Syrinx is organ of voice in ?
  1. Amphibians
  2. Birds
  3. Mammals
  4. Reptiles
B
Question 16: Enterobius vermicularis is commonly known as ?
  1. Pin worm
  2. Ship worm
  3. Book worm
  4. Hook worm
A
Question 17: In molluscs, a respiratory pigment of blue colour is present, called ?
  1. Haemobilin
  2. Haemocyanin
  3. Haemoglobin
  4. Haemoerythrin
B

11th Class Biology Bioenergetics MCQs Chapter 11 Punjab Board

Question 1: The first step in Krebs or citric acid cycle is the union of acetyl CoA with oxaloacetate to form ?
  1. Isocitrate
  2. α-ketogluterate
  3. Malate
  4. Citrate
D
Question 2: In yeast, the products of anaerobic respiration are ?
  1. Methyl alcohol
  2. Pyruvic acid
  3. Ethyl alcohol
  4. Lactic acid
C
Question 3: Photosynthetic pigments are the substances that absorb visible light having wavelengths ?
  1. 230-450 nm
  2. 420-840 nm
  3. 380-750 nm
  4. 150-340 nm
C
Question 4: Thylakoid sacs and stacked in columns called ?
  1. Stroma
  2. Grana
  3. Crista
  4. Cisterna
B
Question 5: Magnesium is an important nutrient ion in green plant as it is an essential component of ?
  1. Starch
  2. Chlorophyll
  3. Lipids
  4. Proteins
B
Question 6: Total photosynthesis carried out by terrestrial plants is about ?
  1. 10%
  2. 20%
  3. 5%
  4. 15%
A
Question 7: Which one is not accessory pigment ?
  1. Chlorophyll a
  2. Xanthophyll
  3. Carotene
  4. Chlorophyll b
A
Question 8: Enzymes involved in cellular respiration are found in ?
  1. Golgi bodies
  2. Cytoplasm
  3. Endoplasmic reticulum
  4. Mitcohondria
D
Question 9: Source of oxygen released during photosynthesis is ?
  1. Both (a) and (b)
  2. Water
  3. None of these
  4. Carbon dioxide
B
Question 10: Which chlorophyll converts light energy into chemical energy ?
  1. Chl. b
  2. Chl. c
  3. Chl. d
  4. Chl. a
D
Question 11: The first step in glycolysis is the transfer of a phosphate group from ATP to ?
  1. Glycerol
  2. Fructose
  3. Glucose
  4. Pyruvic acid
C
Question 12: Synthesis of ATP in the presence of oxygen is called ?
  1. Reductive phosphorylation
  2. Redox phosphorylation
  3. Oxidative phosphorylation
  4. Photophosphorylation
C
Question 13: Glycolysis is the breakdown of glucose up to the formation of ?
  1. NAD
  2. ATP
  3. Pyruvic acid
  4. Sulphuric acid
C
Question 14: Chorophyll absorbs mainly wavelengths of ?
  1. Violet-blue colour
  2. Indigo colour
  3. Yellow colour
  4. Green colour
A
Question 15: Photo-system I has chlorophyll a molecule which absorbs maximum light of 700 nm and is called ?
  1. P₆₀₀
  2. P₉₀₀
  3. P₇₀₀
  4. P₈₀₀
C
Question 16: The molecular formula for chlorophyll a is ?
  1. C₅₅H₇₂O₄N₆Mg
  2. C₅₅H₇₀O₆N₄Mg
  3. C₅₅H₇₁O₇N₄Mg
  4. C₅₅H₇₂O₅N₄Mg
D
Question 17: The process by which pH gradient across the membrane drives the formation of ATP ?
  1. Photorespiration
  2. Chemosynthesis
  3. Chemiosmosis
  4. Photosynthesis
C

11th Class Biology Nutrition MCQs Chapter 12 Punjab Board

Question 1: The feeling of anorexia nervosa is common in human females between the age of ?
  1. 13-19 years
  2. 15-25 years
  3. 10-20 years
  4. 12-21 years
D
Question 2: The enzymes that digest carbohydrates are ?
  1. Erypsin
  2. Pepsin
  3. Lipase
  4. Amylase
D
Question 3: The taking in of complex food is known as ?
  1. Digestion
  2. Excretion
  3. Ingestion
  4. Assimilation
C
Question 4: Liver secretes bile, which may be temporarily stored in the ?
  1. Stomach
  2. Intestine
  3. Crop
  4. Gall baldder
D
Question 5: Amoeba moves and obtains food by means of ?
  1. Tentacles
  2. Flagella
  3. Pseudopodia
  4. Cilia
C
Question 6: The structure in the mouth that prevents food from entering the nasal cavities is the ?
  1. Hard palate
  2. Epiglottis
  3. Soft palate
  4. Uvula
C
Question 7: Pepsin is secreted by ?
  1. Zymogen cells
  2. Mucous cells
  3. Oxyntic cells
  4. Parietal cells
A
Question 8: The length of duodenum is about 20 to ?
  1. 35 cm
  2. 25 cm
  3. 30 cm
  4. 40 cm
B
Question 9: Ammonia is a waste product of amino acid metabolism is converted into urea in ?
  1. Kidney
  2. Lungs
  3. Liver
  4. Pancreas
C
Question 10: The length of Jejunum is about ?
  1. 2.4m
  2. 2m
  3. 1 m
  4. 1.4m
A
Question 11: Fresh saliva is alkaline with a pH nearly ?
  1. 6
  2. 8
  3. 10
  4. 4
B
Question 12: Parietal or oxyntic cells secrete ?
  1. Nitric acid
  2. Sulphuric acid
  3. Acetic acid
  4. Hydrochloric acid
D
Question 13: Liver secretes bile into ?
  1. Duodenum
  2. Stomach
  3. Ileum
  4. Jejunum
A
Question 14: Animals which take in food in the from of large pieces are called --------- feeders ?
  1. Fluid
  2. Detritus
  3. Filter
  4. Macrophagus
D
Question 15: Pepsin hydrolyzes protein to yield peptones and ?
  1. Polypeptides
  2. Pentapeptides
  3. Dipeptides
  4. Octapeptides
A
Question 16: The appendix, some times get inflamed due to entrapping and then putrification of food causing ?
  1. Paroxysm
  2. Appendicitis
  3. Ulcer
  4. Necrosis
B
Question 17: If the absorption of water and salts does not take place due to infection, drug action or emotional disturbance, a condition occurs, known as ?
  1. Diarrhoea
  2. Dyspepsia
  3. Dehydration
  4. Cholera
A

11th Class Biology Gaseous Exchange MCQs Chapter 13 Punjab Board

Question 1: As blood passes through the lungs, each 100ml of blood gives off carbon dioxide about ?
  1. 5ml
  2. 4ml
  3. 2ml
  4. 3ml
B
Question 2: In a adult human being when the lungs are fully inflated the total inside capacity of lung is about ?
  1. 15liters
  2. 20 liters
  3. 5 liters
  4. 10 liters
C
Question 3: When oxygen tension is 100 mm mercury then haemoglobin saturation is ?
  1. 88%
  2. 98%
  3. 68%
  4. 78%
B
Question 4: The maximum amount of oxygen which normal human 100 ml blood absorbs and carries at the sea-level is about ?
  1. 30ml
  2. 50ml
  3. 40ml
  4. 20 ml
D
Question 5: When the smaller bronchi attain a diameter of ---------mm or less then they are called bronchioles ?
  1. One
  2. Two
  3. Three
  4. Four
A
Question 6: Oxygen content of fresh air is about--------- mI per liter ?
  1. 400
  2. 50
  3. 200
  4. 100
C
Question 7: The volume of air taken inside the lungs and expelled during exercise is about ?
  1. 12.5 liters
  2. 9.5 liters
  3. 6.5liters
  4. 3.5 liters
D
Question 8: At 100 mm mercury haemoglobin contains 19.6 ml of oxygen per 100 ml of ?
  1. Blood
  2. Air
  3. Water
  4. Lymph
A
Question 9: 100 ml of arterial blood contains carbon dioxide about ?
  1. 20 ml
  2. 50ml
  3. 40ml
  4. 30ml
B
Question 10: The respiratory system is most efficient in ?
  1. Mammals
  2. Birds
  3. Amphibians
  4. Fishes
B
Question 11: In most plants photo respiration reduces the amount of carbon fixed into carbohydrates by ?
  1. 15%
  2. 5%
  3. 25%
  4. 10%
C
Question 12: Ribulose bisphosphate carboxylase/oxygenase (rubisco) fixes oxygen instead of carbon dioxide ?
  1. Glycolysis
  2. Kreb’s cycle
  3. Respiration
  4. Photorespiration
D
Question 13: A liter of water cannot contain oxygen ?
  1. 40ml
  2. 10ml
  3. 30ml
  4. 20ml
B
Question 14: A complex cartilaginous structure surrounding the upper end of the trachea is ?
  1. Larynx
  2. Alveoli
  3. Epiglottis
  4. Bronchiole
A
Question 15: During rest breathing occurs rhythmically at the frequency of 15 to ----------- times per minute in humans ?
  1. 35
  2. 30
  3. 20
  4. 40
C
Question 16: The iron containing protein pigment present in muscle fibres is: (OR) Respiratory pigment present in muscles is called ?
  1. Immunoglobin
  2. Haemoglobin
  3. Globin
  4. Myoglobin
D
Question 17: The total volume of the leaf comprised air spaces is ?
  1. 70%
  2. 50%
  3. 60%
  4. 40%
D

11th Class Biology Transport MCQs Chapter 14 Punjab Board

Question 1: In conduction from the S-A node to A-V node, there is a delay of about ?
  1. 0.15 seconds
  2. 0.2 seconds
  3. 0.7 seconds
  4. 0.4 seconds
A
Question 2: The pairs of lateral hearts in earthworm are ?
  1. 5 or 6
  2. 6
  3. 7
  4. 4 or 5
D
Question 3: By volume of the blood, in a normal person, plasma constituted about ?
  1. 50%
  2. 25%
  3. 15%
  4. 55%
D
Question 4: Very high environmental temperature that cause closure of stomata ?
  1. 10-15 ̊C
  2. 20-25 ̊C
  3. 30-35 ̊C
  4. 40-45 ̊C
D
Question 5: By weight of the plasma, the plasma proteins constitute ?
  1. 5-7%
  2. 1-7%
  3. 7-9%
  4. 3-5%
C
Question 6: The normal pH of human blood is ?
  1. 5.6
  2. 6.5
  3. 6.3
  4. 7.4
D
Question 7: The number of platelets per cubic millimeter of blood is about ?
  1. 100,000
  2. 250,000
  3. 150,000
  4. 200,000
B
Question 8: Inorganic ions and also salts make up --------------- per cent of plasma ?
  1. 0.5
  2. 0.11
  3. 0.9
  4. 0.3
C
Question 9: One complete heart beat lasts for about ?
  1. 0.2 seconds
  2. 0.8 seconds
  3. 0.16 seconds
  4. 0.4 seconds
B
Question 10: In plants, the xylem water tension is strong enough to pull water up ?
  1. Both (a) and (b)
  2. 200 meters
  3. More than 600 feet
  4. 400 meters
A
Question 11: One complete heartbeat consist of one systole and one diastole, and lasts for about ?
  1. 0.2 seconds
  2. 1.0 seconds
  3. 0.8 seconds
  4. 0.5 seconds
C
Question 12: The opening and closing of stomata is caused by the movement of ions ?
  1. All (a), (b), (c)
  2. Ca
  3. Mg
  4. K
D
Question 13: Antibodies are manufactured in ?
  1. T-lymphocytes
  2. G-lymphocytes
  3. B-lymphocytes
  4. C-lymphocytes
C
Question 14: The total transpiration talking place through cuticle is ?
  1. 5-6%
  2. 2-5%
  3. 5-7%
  4. 1-7%
B
Question 15: The lymph mostly closely resembles with ?
  1. Blood
  2. Both (a) and (b)
  3. Interstitial fluid
  4. Plasma
B
Question 16: The rate of transpiration doubles by every rise of ----------- in temperature ?
  1. 5 ̊C
  2. 15 ̊C
  3. 10 ̊C
  4. 20 ̊C
C
Question 17: Systolic pressure in normal individuals is ?
  1. 120 mm Hg
  2. 130 mm Hg
  3. 110 mm Hg
  4. 100 mm Hg
A