Solved Question Bank CBSE PMT

Solved Question Bank CBSE PMT

1. Which one of the following has haplontic life cycle?
(1) Wheat
(2) Funaria
(3) Polytrichum
(4) Ustilago
Ans. 4

2. T.O. Diener discovered a
(1) Bacteriophage
(2) Free infectious RNA
(3) Free infectious DNA
(4) Infectious protein
Ans. 2

3. Mannitol is the stored food in
(1) Gracillaria
(2) Chara
(3) Porphyra
(4) Fucus
Ans. 4

4. Which one of the following is a vascular cryptogam?
(1) Cedrus
(2) Equisetum
(3) Ginkgo
(4) Marchantia

Ans:2

5. Phylogenetic system of classification is based on
(1) Floral characters
(2) Evolutionary relationships
(3) Morphological features
(4) Chemical constituents
Ans:2

6. Which one of the following groups of animals is bilaterally symmetrical and triploblastic?
(1) Sponges
(2) Coelenterates (Cnidarians)
(3) Aschelminthes (round worms)
(4) Ctenophores
Ans. :3

7. Peripatus is a connecting link between
(1) Coelenterata and Porifera
(2) Ctenophora and Platyhelminthis
(3) Mollusca and Echinodermata
(4) Annelida and Arthropoda
Ans. :4

8. Which one of the following pairs of animals comprises ‘jawless fishes’?
(1) Guppies and hag fishes
(2) Lampreys and eels
(3) Mackerals and Rohu
(4) Lampreys and hag fishes
Ans. :4

9. If a live earthworm is pricked with a needle on its outer surface without damaging its gut, the fluid that comes out is
(1) slimymucus
(2) excretory fluid
(3) coelomic fluid
(4) haemolymph
Ans. :3

10. Plasmodesmata are
(1) Connections between adjacent cells
(2) Lignified cemented layers between cells
(3) Locomotory structures
(4) Membranes connecting the nucleus with plasmalemma

11. Synapsis occurs between
(1) two homologous chromosomes
(2) a male and a female gamete
(3) mRNA and ribosomes
(4) spindle fibres and centromere
Ans. :1

12. Middle lamella is composed mainly of
(1) Phosphoglycerides
(2) Hemicellulose
(3) Muramic acid
(4) Calcium pectate
Ans.:4

13. Cytoskeleton is made up of
(1) Proteinaceous filaments
(2) Calcium carbonate granules
(3) Callose deposits
(4) Cellulosicmicrofibrils
Ans.:1

14. The cell junctions called tight, adhering and gap junctions are found in
(1) Neural tissue
(2) Muscular tissue
(3) Connective tissue
(4) Epithelial tissue

Ans. :4

15. The kind of tissue that forms the supportive structure in our pinna (external ears) is also found in
(1) tip of the nose
(2) vertebrae
(3) nails
(4) ear ossicles
Ans. :1

16. The epithelial tissue present on the inner surface of bronchioles and fallopian tubes is
(1) Squamous
(2) Cuboidal
(3) Glandular
(4) Ciliated
Ans. :4

17. What is not true for genetic code?
(1) It is unambiguous
(2) A codon in mRNA is real in a non-contiguous fashion
(3) It is nearly universal
(4) It is degenerate

Ans. :2

18. Removal of introns and joining the exons in a defined order in a transcription unit is called
(1) Capping
(2) Splicing
(3) Tailing
(4) Transformation
Ans. :2

19. Semiconservative replication of DNA was first demonstrated in
(1) Salmonella typhimurium
(2) Drosophila melanogaster
(3) Escherichia coli
(4) Streptococcus pneumoniae
Ans. :3

20. Whose experiments cracked the DNA and discovered unequivocally that a genetic code is a “triplet”?
(1) Beadle and Tatum
(2) Nirenberg and Mathaei
(3) Hershey and Chase
(4) Morgan and Sturtevant
Ans. :2

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1. Jumping genes in maize were discovered by:

(a) Hugo de Vries

(b) Barbara Mc Clintock

(c) T.H. Morgan.

(d) Mendel

Ans. (b)

2. Streptomycin is obtained from:

(a) Streptomyces griseus

(b) S. aureofaciens

(c) S. venezuelae

(d) S. ramosus

Ans. (a)

3. Binomial system of nomenclature was given by

(a) Julian Huxley

(b) Bentham and Hooker

(c) Linnaeus

(d) Casper Bauhin

Ans. (c)

4. Morphine obtained from Opium is:

(a) Latex

(b) Pome

(c) Alkaloid

(d) Tannin

Ans. (c)

5. Indusium is found in:

(a) Algae

(b) Ferns

(c) Moss

(d) Cycas

Ans. (b)

6. The vacuole is lined by a membrane called:

(a) Tonoplast

(b) Jacket

(c) Cell membrane

(d) Tonoplasm

Ans. (a)

7. Agar-agar is obtained from:

(a) Chiorella

(b) Spirogyra

(c) Ulothrix

(d) Gelidium

Ans. (d)

8. Effect of pollution is observed first on:

(a) Micro-organisms

(b) Food crop

(c) Green vegetation

(d) Herbivores

Ans. (c)

9. DNA element with ability to change its position, is called

(a) Cistron

(b) Transposon

(c) Intron

(d) Recon

Ans. (b)

10. Initiation codon is:

(a) UUU

(b) UGA

(c) AUG

(d) UAG

Ans. (c)

11. DNA multiplication is called:

(a) Translation

(b) Replication

(c) Transduction

(d) Transcription

Ans. (b)

12. Duramen is present in:

(a) Inner region of secondary wood

(b) Part of sap wood

(c) Outer region of secondary wood

(d) Region of pericycle

Ans. (a)

13. In plants, water supply is due to:

(a) Osmosis

(b) Imbibition

(c) Guttation

(d) Adhesion force

Ans. (d)

14. Programmed cell death is scientifically termed as:

(a) Autotomy

(b) Celiysis

(c) Apoptosis

(d) None of these

Ans. (c)

15. Paraffin wax is:

(a) Ester

(b) Acid

(c) Monohydric alcohol

(d) Cholesterol

Ans. (a)

16. Medicine for curing respiratory problems is obtained from:

(a) Ephedra

(b) Calotropis

(c) Eucalyptus

(d) Cannabis

Ans. (a)

17. In Funaria, stomata are presenpn the:

(a) Stem

(b) Leaves

(c) Capsule

(d) Apophysis

Ans. (d)

18. The process after glycolysis in anaerobic respiration. is known as :

(a) Fermentation

(b) Respiration

(c) KREBS cycle

(d) Decomoposition

Ans. (a)

19. Which is always present in photochemical smog?

(a) O₃

(b) CO₂

(c) SO₂

(d) CH₄

Ans. (a)

20. Which crop utilises solar energy most efficiently?

(a) Potato

(b) Sugarcane

(c) Wheat

(d) Rice

Ans. (b)

21. Viral genome incoporated host DNA is called:

(a) Prophase

(b) Prophage

(c) Bacteriophage

(d) None of these

Ans. (b)

22. In cell cycle, during which phase, chromosomes are arranged in equatorial plate?

(a) Metaphase

(b) Anaphase

(c) Telophase

(d) Prophase

Ans. (a)

23. The soil which is transported by wind is known as:

(a) Colluvial

(b) Eolian

(c) Alluvial

(d) Glacial soil

Ans. (b)

24. Spindle fibre is made up of:

(a) Tubulin

(b) Humulin

(c) Intermediate filament

(d) Flagellin

Ans. (a)

25. The yielding of rice is increased by:

(a) Azolla

(b) Nostoc

(c) Anabaena

(d) Clostridium

Ans. (a)

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objective zoology for PMT

objective zoology for PMT
Objective Biology Zoology for PMT 10+2
Free Biology Cbse Pmt Online Practice Test
1. Three most abundant elements in protoplasm are
(a) carbon, sodium and hydrogen
(b) carbon, hydrogen and O2
(c) nitrogen, carbon and O2
(d) carbon, phosphorus and oxygen
Ans. (b)

2. External ears are characteristics of:
(a) mammals
(b) reptiles
(c) amphibian
(d) pisces
Ans. (a)

3. Which of the following statement is not true?
(a) Animal cells never contain chloroplast unlike many plant cells
(b) Animal cells contain ultra scopic chloroplast while plant cells contain micro-scopic chloroplast
(c) Plant cells have cellulosic cell wall while animal cells do not
(d) Plant cells have central vacuoles while animal cells do not
Ans. (b)

4. Trypnosoma is transmitted by:
(a) contamination
(b) inoculation
(c) contagious
(d) touch
Ans. (b)

5. Point mutation can be created by:
(a) deletion
(b) insertion or addition
(c) both (a) and (b)
(d) none of the above
Ans. (c)

6. Mitochondria are often seen aggregated around:
(a) food vacuole
(b) contractile vacuole
(c) water vacuole
(d) all of these
Ans. (b)

7. Protein which is both enzymatic and structural:
(a) trypsin
(b) actin
(c) troponin
(d) myosin
Ans. (d)

8. When an animal turns sideways to the Sun to get the maximum amount of sun on its flanks, this is an example of:
(a) motivation
(b) habitation
(c) posture
(d) orientation
Ans. (d)

9. Insulin and glucagon:
(a) both are lipids
(b) both are protein
(c) insulin is protein and glucagon is lipid
(d) Insulin is lipid and glucagon is a protein
Ans. (b)

10. Addison’s disease results from:
(a) hypertrophy of gonad
(b) hyposecretion of adrenal cortex
(c) hyperactivity of leydig cells
(d) none of the above
Ans. (b)

11. During diastole, the heart is filled with:
(a) deoxygenated blood
(b) venous blood
(c) mixed blood
(d) oxygenated blood
Ans. (b)

12. Receptors of sensation produced when a person eats red chillies are located on which part of tongue?
(a) Tip
(b) Base
(c) Side
(d) None of these
Ans. (c)

13. Colorado tick fever is caused by the agent:
(a) bacteria
(b) virus
(c) Nematoda
(d) fungi
Ans. (c)

14. Gemmule formation in sponges is helpful in:
(a) sexual reproduction
(b) asexual reproduction
(c) only dissemination
(d) none of the above
Ans. (b)

15. The coelomic fluid oozes from the surface of earthworms to keep the skin moist, it escapes from:
(a) coelomic pores
(b) dorsal pores
(c) nephridiopores
(d) genital pores
Ans. (b)

16. Chloragogen cells of earthworms are analogous to vertebrate:
(a) lungs
(b) liver
(c) gut
(d) kidney
Ans. (b)

17. Haemophilia in man causes:
(a) blindness
(b) loss of haemoglobin
(c) no clotting of blood
(d) rickets
Ans. (c)

18. House fly possesses:
(a) two pairs of wings
(b) one pair of wing
(c) three pairs of wings
(d) none of the above
Ans. (b)

19. This is not the cell of areolar tissue:
(a) macrophages
(b) Schwann cell
(c) plasma cell
(d) adipose cell
Ans. (b)

20. Vermiform appendix is a part of:
(a) alimentary canal
(b) nervous system
(c) vascular system
(d) reproductive system
Ans. (a)

21. The lytic enzymes released by sperm are:
(a) acrosome
(b) ligase
(c) androgamone
(d) hyaluronidase
Ans. (d)

22. The digestion of starch by amylase is completed in the:
(a) mouth
(b) oesophagus
(c) stomach
(d) duodenum
Ans. (a)

23. Indentify the edible freshwater teleosts:
(a) sharks
(b) rays and skates.
(c) hilsa ilisha
(d) catla catla
Ans. (d)

24. In bacteria OriC consists of:
(a) 1240 nucleotides
(b) 540 nucleotides
(c) 110 nucleotides
(d) 245 nucleotides
Ans. (d)
25. Nissi’s granules are characteristic of:
(a) muscle tissue
(b) connective tissue
(c) nerve tissue
(d) epithelial tissue
Ans. (c)

26. Joint between femur and acetabulum is known as:
(a) ball and socket joint
(b) pivotal joint
(c) hind joint
(d) saddle joint
Ans. (a)

27. Believers in spontaneous generation theory assumed that:
(a) organisms arose only from other similar organisms
(b) organisms could arise oily from air
(c) organisms arose-from non-living material
(d) organisms always arise from air
Ans.(c)

28. Which one are correctively matched?
(a) Vitamin E-tocopherol
(b) Vitamin D-riboflavin
(c) Vitamin B-calciferol
(d) Vitamin A-thiamine
Ans. (a)

29. Which fish selectively mosquito?
(a) Gambusia
(b) Rohu
(c) Clarias
(d) Exocoetus
Ans. (a)

30. Gill cover is absent in
(a) Shark
(c) Salmon
(b) Labeo
(d) All of these
Ans. (a)

31. The cyst wall of Euglena is made up of
(a) Lipids
(b) Histones
(c) Carbohydrates
(d) Lipoproteins
Ans. (c)

32. The class of coelenterate which exhibits polymorphism?
(a) Hydrozoa
(b) Scyphozoa
(c) Anthozoa
(d) All of these
Ans. (a)

33. Which pairing is not correct?
(a) Stegomyia — Yellow fever
(b) Pediculus —Trench fever
(c) Culex — Malaria
(d) Xenopsylla —Bubonic plague
Ans. (c)

34. ADP contains:
(a) One high energy bond
(b) Two high energy bond
(c) Three high energy bond
(d) Four high energy bond
Ans. (a)

35. Retroviruses have:
(a) Only RNA as genetic material
(b) Only DNA as genetic material
(c) Both DNA and RNA
(d) Genes on nucleoprotein complexes as genetic material
Ans. (a)

36. Which of the following is colourless Hydra?
(a) Hydra fusca
(b) Hydra viridis
(c) Hydra oligactis
(d) Hydra vulgaris
Ans. (d)

37. The blood cells are formed in bone marrow. The process is known as:
(a) Haemolysis
(b) Erythroblastosis
(c) Haemopoiesis
(d) Thrombopoiesis
Ans. (c)

38. Transfer of genes from one bacterium to another through viruses, is called:
(a) Transduction
(b) Transformation
(c) Transcription
(d) Transition
Ans. (a)

39. Power of regeneration in sponges is due to
(a) Theocytes
(b) Amoebocytes
(c) Archaeocytes
(d) Scleroblast
Ans. (b)

40. Blood of Pheretima is:
(a) Blue with Haemocyanin in corpuscles
(b) Blue with hemoglobin in corpuscles
(c) Red with hemoglobin in corpuscles
(d) Red with hemoglobin in plasma
Ans. (d)

41. Function of rectal papillae of cockroach is:
(a) Absorption of amino acids
(b) Absorption of fats
(c) Absorption of glucose
(d) Absorption of water
Ans. (d)

42. Blood of Balanoglossus is:
(a) Red
(b) Blue
(c) Green
(d) Colourless
Ans. (d)

43. In fishes the lateral line receptors are neuromast organs. These are:
(a) Olfactoreceptors
(b) Gustoreceptors
(c) Rheoreceptors
(d) Chemoreceptors
Ans. (c)

44. The flight muscles of birds are attached to:
(a) Coracoids
(b) Scapula
(c) Keel of sternum
(d) Clavicle
Ans. (c)

45. Stenson’s duct opens at:
(a) Upper first premolar
(b) Upper 2nd premolar
(c) Upper first molar
(d) Upper second molar
Ans. (d)

46. Enterokinase takes part in conversion of:
(a) Pepsinogen to pepsin
(b) Trypsinogen to trypsin,
(c) Protein into polypeptides
(d) Caseinogen into casein
Ans. (b)

47. Depression of nervous system including the respiratory centre is called:
(a) Neuritis
(b) Sciatica
(c) Neuralgia
(d) Narcosis
Ans. (d)

48. Which has the thickest walls?
(a) Right atrium
(b) Left atrium
(c) Right ventricle
(d) Left ventricle
Ans. (d)

49. Digital formula of arms in man is:
(a) 0, 2, 3, 3, 3
(b) 0, 3, 2, 3, 3
(c) 2, 2, 3, 3, 3
(d) 2, 3, 3, 3, 3
Ans. (d)

50. The number of ribs in our body are:
(a) 10
(b) 12
(c) 24
(d) 36
Ans. (c)

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