Sunday, 31 March 2019

Biology Solved MCQs Practice Test List

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Biology MCQs For MBBS Exam Test and PPSC Job Test
Biology MCQs For MBBS Test



Biology PDF MCQs 2017 for Lecturer PPSC 2017 Biology MCQs Test. Here is the Sample Papers Download File for GRE Biology Practice Test Solved MCQs Questions Answers. Solve MCQs Biology MCQs Society of Higher Education & Industrial Research with Biology practice 50 sample Question Multiple Choice Questions With Answers.


Biology MCQs Quiz Test With Solutions





Question 1: Plasmodium belongs to-------- ?
  1. Ciliates
  2. Apicomplexans
  3. Actinopods
  4. Foraminferans
2
Question 2: Of the following which one has glassy shells------------- ?
  1. Radiolarians
  2. Forams
  3. Both of these
  4. None of these
A
Question 3: The size of Spirochete is----------- ?
  1. 0.1 -600 um
  2. 100-200 nm
  3. 500 um
  4. 0.75-1.25 um
C
Question 4: Approximately ----- species of bacteria are known to cause diseases in humans ?
  1. 100
  2. 200
  3. 300
  4. 400
B
Question 5: Nitrifying bacteria are the examples of----------- ?
  1. Hetrotrophic bacteria
  2. Chemosynthetic bacteria
  3. Saprophytic bacteria
  4. Parasitic bacteria
B
Question 6: A bacterium with tuft of flagella at both poles is called---------- ?
  1. Amphitrichous
  2. Lophotrichus
  3. Monotrichous
  4. Peritrichous
A
Question 7: The animals in which coelom is formed due to splitting of mesocerm are known as---------- ?
  1. Pseudocoelous
  2. Schizocoelous
  3. Enterocoelous
  4. Emphicoelous
B
Question 8: Aschelminthes is also known as--------- ?
  1. Protozoans
  2. Eumatazoa
  3. Nematodes
  4. Protoctist ancestors
C
Question 9: Venus flower basket is also known as-------- ?
  1. Sycon
  2. Leucoselenia
  3. Spongilla
  4. Euplectella
D
Question 10: Coelom that develops from the archenteron as outpouching is-------- ?
  1. Pseudocoelom
  2. Enterocoelom
  3. Schizocoelom
  4. None of these
B
Question 11: Sperms released in water are carried to the mesenchyme in sponges by--------- ?
  1. Amoeboid cell
  2. Stipules
  3. Spicules
  4. Spines
A
Question 12: Water has maximum density at----------- ?
  1. 0°C
  2. 4°C
  3. 4° K
  4. 4.8°C
B
Question 13: Various tissue types combine to make up---------- ?
  1. Cells
  2. Organs
  3. Organ System
  4. Organelles
B
Question 14: Biologist ‘Grass’ discovered the life cycle of plasmodium in------- ?
  1. 1896
  2. 1897
  3. 1898
  4. 1899
C
Question 15: People living in high altitudes (like mountains) usually have a -------- ?
  1. smaller number of Red Blood Cells
  2. larger number of Red Blood Cells
  3. smaller number of White Blood Cells
  4. larger number of White Blood Cells
B
Question 16: Blood is carried towards the heart by --------- ?
  1. Arteries
  2. Capillaries
  3. Veins
  4. none of these
C
Question 17: The atoms of different elements combine with each other through ionic or covalent bonding to produce compounds this stable form is called ?
  1. An organ
  2. A molecule
  3. Tissue
  4. Both a and c
B
Question 18: The evaporative cooling in the respiratory tract of dogs is called ?
  1. Vasodilation
  2. Vasoconstriction
  3. Panting
  4. All of these
C
Question 19: Sodium ions are “pumped” from a region of lower concentration to a region of higher concentration in the nerve cells of humans. This process is an example of ?
  1. Diffusion
  2. Passive transport
  3. Osmosis
  4. Active transport
D
Question 20: Astronauts may use which technique to grow fruits and vegetables ?
  1. Tissue culture techniques
  2. Cloning
  3. Pasterisation
  4. Hydroponic culture technique
D
Question 21: Which treatment is instituted in a cancerous patient ?
  1. Antibiotic therapy
  2. Radiotherapy
  3. Gene therapy
  4. None of these
B
Question 22: Operculum is present in------------ ?
  1. bony fish
  2. sea fish
  3. cartilaginous fish
  4. none of these
A
Question 23: Which of the following is the basic unit of classification--------- ?
  1. Species
  2. Genus
  3. Family
  4. Order
A
Question 24: Polysome is formed during ---------- process ?
  1. Transcription
  2. Secretion
  3. Translation
  4. Division
C
Question 25: Ribosomes were discovered by------ ?
  1. Golgi
  2. De Duve
  3. Palade
  4. R.Brown
C
Question 26: The branch of biology which deals with the study of social behavior and communal life of human beings living in any environment is called------- ?
  1. Environmental biology
  2. Social biology
  3. Human biology
  4. Both b and c
B
Question 27: Pollen grains in pinus have ---------- for dispersal through wind ?
  1. Flagella
  2. Cilia
  3. Wings
  4. Feathers
C
Question 28: Amphibians are considered to be evolved from---------- ?
  1. Newts
  2. Varanope
  3. Dipnoi
  4. Hagfishes
C
Question 29: Ozone depletion occurs commonly due to------------ ?
  1. Carbon dioxide
  2. Chlorofluorocarbons
  3. UV rays
  4. Deforestation
B
Question 30: Conversion of ammonia or ammonium ion into nitrites during nitrogen cycle occurs due---------- ?
  1. Rhizobium
  2. Nitrosomonas
  3. Nitrobacter
  4. Pseudomonas
B
Question 31: The place of centromere where spindle fibres get attached is-------- ?
  1. Kinetochore
  2. Kinochore
  3. Centromere region
  4. all of these
A
Question 32: If more substrate to already occurring enzymatic reaction is added more enzyme activity is seen because-------- ?
  1. There is probably more substrate present than there is enzyme.
  2. There is probably more enzayme available than there is substrate.
  3. There is probably more product present than there is either substrate or enzyme.
  4. The enzyme substrate complex is probably failing to form during the reaction.
D
Question 33: Who opposed the idea the cell is an empty space bounded by thick wall ?
  1. Lorenz Oken
  2. Schwann
  3. Robert Brown
  4. Rudolph Virchow
C
Question 34: A chemical substance which can react (in place of substrate) with the enzyme but is not transformed into product/s and thus blocks the active site temporarily or permanently is called------------- ?
  1. Co-enzyme
  2. Blocker
  3. Inhibitor
  4. Cofactor
C
Question 35: Carbon atom is--------- ?
  1. Monovalent
  2. Divalent
  3. Trivalent
  4. Tetravalent
D
Question 36: Specific heat of vaporization of water is---------- ?
  1. 574 Kcal/kg
  2. 674 Kcal/kg
  3. 774 Kcal/kg
  4. 874 Kcal/kg
A
Question 37: An enzyme which converts a dipeptide into separate amino acids is an example of-------- ?
  1. Decarboxylase
  2. Hydrolase
  3. Oxidoreductase
  4. Transferase
B
Question 38: A compound produced as a result of a chemical reaction of an alcohol with an acid in which water molecule is released is called-------- ?
  1. Monosaccharide
  2. Fatty acid
  3. Neutral lipid
  4. Nucleic acid
C
Question 39: The one which is incorrect pair ?
  1. Sori – Indusium
  2. Arthrophytes – Jointed
  3. Dichotomous – Vernation
  4. Lycopods – Ground pries
C
Question 40: How many moles of carbon dioxide are produced by complete oxidation of one mole of puruvic acid ?
  1. 1
  2. 2
  3. 3
  4. 6
C
Question 41: Which structure of protein gives information aboutnumber and sequence of amino acids in it---------- ?
  1. Primary structure
  2. Secondary structure
  3. Tertiary structure
  4. Quaternary structure
A
Question 42: Antibodies play important role against microorganisms and other pathogens to which type of proteins do they belong------ ?
  1. Globular proteins
  2. Fibrous Proteins
  3. Both a and b
  4. None of these
A
Question 43: ATP is a an important molecule for its major function--------- ?
  1. As an energy currency of the cell
  2. As a coenzyme
  3. Both a and b
  4. None of these
A
Question 44: Keto group is represented as--------- ?
  1. CO
  2. C-COO-C
  3. HCOH
  4. HOH
A
Question 45: The first stage of development in which a cavity appears is the------- ?
  1. Neurula
  2. Morula
  3. Gastrula
  4. Balastula
D
Question 46: Non polar organic molecules are ----------- in water ?
  1. Soluble
  2. Insoluble
  3. Partially soluble
  4. Depends upon condition
B
Question 47: According to Lamarch evolution occurred as the result of--------- ?
  1. Natural selection
  2. The theory of recapitulation
  3. Inheritance of acquired characters
  4. Over production
C
Question 48: The word which E-Chatton suggested for bacteria and blue green algae was------- ?
  1. Autotrophs
  2. Heterotrophs
  3. Pro-cariotique
  4. Eu-cariotique
C
Question 49: Carbohydrates, fats & proteins are essential for--------- ?
  1. Metabolic processes of an organism
  2. Providing energy
  3. Formation of sturctures
  4. All of these
D
Question 50: Water is --------- times viscous than air ?
  1. 50
  2. 1000
  3. 5000
  4. 8000
A