Thursday, 4 April 2019

PPSC Biology MCQs Exams MBBS Jobs Important Solve Quiz Tests

Many of the exams through PPSC exams tests of MBBS jobs. Here i am sharing important MCQs of Biology Solve MCQs Quiz Tests. All biology mcqs for aptitude test are from the previous years of the tests of PPSC. Biology mcqs support and movement with solve quiz tests. Important MCQs biology mcqs with answers for PPSC Biology tests. All medical MCAT students can also prepare the NTS Biology MCQs For MBBS Jobs PPSC Exams Tests.

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Biology PPSC Tests MCQs Quiz Tests


Q.1: True metamorphosis is not present in------- ?

  1. Crustacea
  2. Insecta
  3. Arachnida
  4. Myriapoda

C

Q.2: Which of following system is segmentally arranged in annelids ?

  1. Excretory system
  2. Digestive system
  3. Criculatory system
  4. Nervous system

C

Q.3: The number of chromosomes in human cell is------- ?

  1. 48
  2. 44
  3. 46
  4. 26

C

Q.4: Which of the following statement about plants is incorrect ?

  1. All are eukaryotes
  2. They are multicellular.
  3. Non-motile organisms
  4. They Are heterotrophes

D

Q.5: Which of the following of bryophytes are the simplest one ?

  1. Porella
  2. Funaria
  3. Anthocerus
  4. Polytrichum

A

Q.6: mitochondria in ear lobe cells are nearly------ ?

  1. 40
  2. 50
  3. 55
  4. 60

B

Q.7: in animals meiosis produces--------- ?

  1. gametes
  2. spores
  3. both a & b
  4. all the above

A

Q.8: prokaryotic and eukaryotic are two types of-------- ?

  1. cells
  2. tissues
  3. organs
  4. organisms

A

Q.9: cells are of----------types ?

  1. 4
  2. 3
  3. 2
  4. 1

C

Q.10: In term of spore production Selaginella is characterized by-------- ?

  1. Homosporous
  2. Hetrosporous
  3. Both depending upon the conditions
  4. None of these

B

Q.11: Bryophtes are called amphiabians of plant world because ?

  1. Bryophytes like amphibian ancestors are one of the most primitive organisms in this world.
  2. Bryophytes like amphibian live in damp shady places and close to water body.
  3. Amphibians have close relation with bryophytes in their habitat.
  4. All of these

C

Q.12: In bryophytes fertilization takes place in-------- ?

  1. Antheridia
  2. Archegonia
  3. water
  4. Ovule

B

Q.13: Which of the following statement about alternation of generation in bryophytes is incorrect ?

  1. It involves alternation of morphologically different generations
  2. Their gametophyte is independent while sporophyte depends upon gametophyte for nutrition.
  3. Spore formation occurs through meiosis
  4. Both the gametophyte and sporophytes are haploid generations thus can produce haploids gametes to continue the diploid number on fertilization

D

Q.14: Antherozoids the male gamete in bryophytes are attracted towards Archegonium i.e. female sex organ by------- ?

  1. Phototactic phenomenon
  2. Chemotactic phenomenon
  3. Geotropic phenomenon
  4. Chemotropic movement

B

Q.15: Ground pries are also known as-------- ?

  1. Lycopods
  2. Spike mosses
  3. Both of these
  4. None of these

C

Q.16: Sporophyte is--------- ?

  1. Monoploid
  2. Haploid
  3. Diploid
  4. Polyploidy

C

Q.17: Megaphylls i.e. leaves with divided veins with an expanded lamina is a dharacteristic of ----------- ?

  1. Lycopods
  2. Ferns
  3. Seed plants
  4. Both b and c

D

Q.18: Which of the following statement about filicinae a group of tracheophytes is incorrect----- ?

  1. They belong to sphenopsida
  2. They are seedless and their leaves are called fronds
  3. They live in shady and moist areas.
  4. They show circinate vernation.

A

Q.19: Due to which property of Adiantum and example of Filicinae is called Maidenhairfern------- ?

  1. Its short thick branched horizontally growing rhizome
  2. Fibrous adventituous roots arise from the lower side of rhizome
  3. Shows heteromorphic alternation of generation
  4. Stipe (stalk) and rachis of leaf have black smooth and shiny hair like structures

D

Q.20: In which group of tracheophytes ovules are born on the exposed surface of megasporophylls------ ?

  1. Spheospsida
  2. Filicineae
  3. Gymnosperms
  4. Angiosperms

C

Q.21: In life cycle of Pinus megaspores produced by megasporangium divide into 4 megaspores by------ ?

  1. Mitosis
  2. Meiosis
  3. Both depending upon the conditions
  4. None of these

B

Q.22: In Hornworts the band of meristematic tissue is found near------ ?

  1. Foot
  2. Gamete producing region
  3. Spore producing region
  4. At junction of A & B

D

Q.23: The first cell of the sporophyte generation is------- ?

  1. Oospore
  2. Spore mother cell
  3. Spore
  4. Gamete

A

Q.24: Chemically auxins are------ ?

  1. Indole propionic acid.
  2. Indole carboxylic acid.
  3. Indole acetaldehyde
  4. Indole acetic acid.

D

Q.25: Gibberellins may be substituted for ----------- light, therefore promote flowering in long day plants ?

  1. White
  2. Blue
  3. Red
  4. Green

C

Q.26: Which type of the receptors are present in the ear-------- ?

  1. Chemoreceptors
  2. Mechanoreceptors
  3. Photoreceptors
  4. Thermoreceptors

B

Q.27: ------ is simplest form of learning ?

  1. Imprinting
  2. Habituation
  3. Insight learning
  4. Latent learning

B

Q.28: ------- was first to propose an objective definition of instinct ?

  1. Thorpe
  2. Pavlov
  3. Kohler
  4. Darwin

D

Q.29: Type of neurons found exclusively in CNS are---- ?

  1. Sensory neurons
  2. Motor neurons
  3. Associative neurons
  4. None of these

C

Q.30: Cell membrane under resting conditions is impermeable to all the ions except--------- ?

  1. Na+
  2. K+
  3. Cl-
  4. PO4-2

B

Q.31: Normal resting membrane potential of a neuron is------- ?

  1. – 50 mv
  2. – 60 mv
  3. – 70 mv
  4. – 80 mv

C

Q.32: Insufficient secretion of iodothyroxine in adults causes------- ?

  1. Myxedema
  2. Cretinism
  3. Goiter
  4. Exopthalmic goiter

A

Q.33: Number of pairs of cranial nerves is------ ?

  1. 10
  2. 11
  3. 12
  4. 13

C

Q.34: Which of the following are responsible for the detection of changes in environment ?

  1. Receptors
  2. Neurons
  3. Effectors
  4. All of these

A

Q.35: Co-ordination results in---------- ?

  1. Regulation of body functions
  2. Organization of body functions
  3. Integration of body functions
  4. All of these

D

Q.36: Which of the followings are effectors-------- ?

  1. Muscles
  2. Glands
  3. Sensory organs
  4. Both ‘a’ & ‘b’

D

Q.37: Co-ordination in man is brought about by------- ?

  1. Nervous system
  2. Endocrine system
  3. Both of these
  4. none of these.

C

Q.38: Which of the following neuron has a single long dendron ?

  1. Sensory neuron
  2. Motor neuron
  3. Associative neuron
  4. none of these.

A

Q.39: Which of the following cytoplasmic extensions carry the message toward the cell body------- ?

  1. Dendrites
  2. Axon
  3. Both of these
  4. none of these

A

Q.40: Under resting membrane potentials ?

  1. Outer surface of neuron is more positive
  2. Inner surface of neuron is more positive
  3. Both of these surfaces are equally positive
  4. none of these.

A

Q.41: Central nervous system of man consists of--------- ?

  1. Brain
  2. Spinal cord
  3. Both of these
  4. none of these

C

Q.42: Which of the following is largest part of brain ?

  1. Cerebrum
  2. Cerebellum
  3. Medulla oblongata
  4. Thalamus

A

Q.43: Value of resting membrane potential is-------- ?

  1. 0.03 V
  2. 0.05 V
  3. 0.07 V
  4. 0.09V

C

Q.44: Receptors for hearing come under heading of------- ?

  1. Chemical
  2. Mechanical
  3. Photo
  4. Nociceptors

B

Q.45: Reflex actions below the neck are under control of-------- ?

  1. Brain
  2. Spinal cord
  3. Hypothalamus
  4. none of these.

B

Q.46: Which of the following feature is not related to neuron ?

  1. Conduction
  2. Regeneration
  3. Reflex
  4. Movement

B

Q.47: Bacteriochlorophylls does not include------------- ?

  1. Chlorophyll e
  2. Chlorophyll d
  3. Chlorophyll a
  4. Chlorophyll c

C

Q.48: Molecular formula of chlorophyll b is--------- ?

  1. C55 H10 O4 N6 Mg
  2. C55 H70 O6 N5 Mg
  3. C55 H71 O6 N4 Mg
  4. C55 H70 O6 N4 Mg

B

Q.49: Quantitative study of energy relationships in biological systems obeys ?

  1. Laws of thermodynamics
  2. Bioenergetics
  3. Laws of thermo chemistry
  4. Laws of chemical energetic

A

Q.50: Of the following which one is not an energy releasing process ?

  1. Glycolysis
  2. Respiration
  3. Photosynthesis
  4. Kreb’s cycle

C