CUET 2024 Biology MCQs for Practice

Biology MCQ Question Answers for CUET 2024

Biology MCQs – Practice the Biology MCQs suitable for various Entrance Exams including CUET. Learn and practice Biology questions and answers. Biology MCQ questions are very helpful for various competitive exams. CUET is a Common University Entrance Test that is now mandatory to take admission to Central Universities in India. Biology MCQ questions are based on the latest CUET 2024 exam pattern and other entrance exams, so that you can have a fair idea about exam trends that will be followed for various entrance exams.

1. The function of cristae in a mitochondrion is

a.elimination of Carbon Dioxide

b.electron transport and ATP synthesis

c.intake of Oxygen

d.carbon assimilation

2. Anticoagulant secreted by leech is

a.Haemozoin

b.Hirudin

c.Heparin

d.Haematin

3. Trophozoites of E.histolytica reproduced by

a.budding

b.binary fission

c.autogamy

d.conjugation

4. Lateral line system found in fishes has been lost in Amphibia because of

a.development of sturdy eggs

b.occurrence of metamoophosis on amphibian

c.change over to herbivorous feeding

d.evolution of terrestrial habit

5. One of the following is considered as a living and connecting link between Annelida and Arthropoda:

a.Balanoglossus

b.Peripatus

c.Sphenodon

d.Limulus

6. Phyllotaxy is the arrangement of

a.leaves

b.flower buds

c.veins

d.branches

7. Bryophyta acts as a connecting link between

a.algae and fungi

b.terrestrial fungi and aquatic fungi

c.thallophyta and pteridophyta

d.pteridophyta and gymnosperms

8. The pair of fins found near the operculum in bony fishes is known as

a.anterior fins

b.paired fins

c.ray fins

d.pectoral fins

9. Which of these lives in water permanently?

a.Frogs

b.Necturus

c.Ichthyophis

d.Salamander

10. In flowering plants, meiosis occurs at the time of

a.formation of pollen grains

b.formation of root primordia

c.germination of seed

d.formation of buds

11. Which of the following is not a viral disease of man?

a.Small pox

b.Whooping cough

c.Rabies

d.Influenza

12. Viruses were discovered by

a.Iwanowiski

b.Stanley

c.Herelle

d.Twort

13. Ostia are meant to

a.admit water current

b.ingest food

c.excrete waste products

d.pass out water current

14. The food-chain of an ecosystem can be represented as a pyramid divided into four or more

a.organisms

b.biotic communities

c.biomass

d.trophic levels

15. In rabbit, the danger signal is given by

a.external ear

b.fore limbs

c.tail

d.sound

16. The average metabolic rate of a male individual in terms of heart output/day is

a.2,600 kcal/day

b.3,200 kcal/day

c.1,600 kcal/day

d.4,000 kcal/day

17. Penicillium is a member of:

a.Basidiomycetes

b.Phycomycetes

c.Ascomyectes

d.Deuteromycetes

18. The locomotion of snake is helped by

a.reduced limbs

b.reduced ribs

c.ribs and reduced limbs

d.ribs only

19. Malpighian bodies are found in

a.insects and involved in excretion

b.kidney of vertebrates and is involved in selective reabsorption

c.kidney of vertebrates and is involved in passive filtration

d.kidney of vertebrates and is involved in ultrafiltration

20. The study of migration of birds is called

a.Nidology

b.Ecology

c.Ornithology

d.Phenology

21. Germ theory of disease was proposed by

a.F. Jacob

b.L. Pasteur

c.T. Boveri

d.Robert Koch

22. A womans fertility ceases at about 49-55 years. This is known as

a.puberty

b.menopause

c.menstruation

d.gestation

23. Which mosquito sits making an acute angle?

a.Aedes

b.Anopheles

c.Psorophora

d.Culex

24. Algae and fungi are characterised by the possession of

a.unicellular jacketed sex organs

b.chloroplasts

c.embryo

d.multicellular jacketed sex organs

25. Sequence of nucleotides in a DNA strand is CAT TAG CAT CAT GAC, what will be the base sequence in complementary strand of RNA?

a.TAG ATG ATG GUA CUG

b.GTA ATG GTA GAT CTA

c.GTA ATC GAT GTA CTA

d.GUA AUC GUA GUA CUG

26. Which disease is caused by a nematode?

a.Filariasis

b.Amoebiasis

c.Leprosy

d.Poliomyelitis

27. Which of the following statements is correct?

a.Blood of earthworm is red and haemoglobin is dissolved in RBC

b.Blood pigment of earthworm is red and haemoglobin is dissolved in plasma

c.Blood of earthworm is blue in colour

d.Blood pigment of earthworm is haemocyanin

28. Oil in the skin is secreted by

a.hair follicles

b.sebaceous glands

c.mucous glands

d.sweat glands

29. Androgens are secreted from

a.Leydig cels and adrenal cortex

b.Leydig cells and placenta

c.Adenohypophysis and tesis

d.Testis and adrenal cortex

30. Which of the following is commercially most valuable:

a.Autumnwood

b.Heartwood

c.Sapwood

d.Spring wood

31. Which one of these is a cancerous disease

a.Angina

b.Malaria

c.Kwashiorkor

d.Leukaemia

32. Red rust of tea is caused by

a.Cephaleuros

b.Pteris

c.Puccinia

d.Oedogonium

33. Female cone is absent in

a.None of these

b.Cycas

c.Taxus

d.Pinus

34. The basic taxonomic unit upon which the systems of classification are constructed is

a.species

b.family

c.class

d.order

35. Which is lacking in the urogenital system of birds?

a.A pair of large kidneys

b.A pair of ovaries and oviducts

c.A pair of testes

d.Cloaca

36. The mountain sickness in persons climbing to high attitudes without the aid of oxygen cylinders is due to

a.arterial hypoxia

b.lack of sufficient amount of erythrocytes

c.lack of sufficient amount of haemoglobin

d.anaemic hypoxia

37. Nematocysts of Hydra are important for

a.cataching prey

b.paralysing prey

c.testing the water

d.testing the food

38. The locomotor organs of Echinoderms is called

a.parapodia

b.pseudopodia

c.setae

d.tube feet

39. Study of soil is called:

a.Nematology

b.Pedology

c.Ecology

d.Pathology

40. Commercial source of citric acid is:

a.Yeast

b.Penicillium

c.Citrus fruit

d.Aspergillus

41. What is monothecous stamen?

a.It is a stamen with many lobes

b.It is a stamen with no lobes

c.It is a sterile stamen

d.It is a stamen with one lobe

42. Which is the correct food chain?

a.bacteria → grass → rabbit → wolf

b.grass → snake → inset → deer

c.grass → insect → bird → snake

d.grass → wolf → deer → buffalo

43. Fat soluble vitamins are

a.A, D and E

b.B, C and D

c.A, B and C

d.E, D and B

44. Citrus canker is a common disease of lemon and oranges. It is caused by

a.Rhizobium

b.E. coli

c.Bacillus subtilis

d.None of these

45. The female cockroach can be distinguished from the male by

a.Short but broad abdomen and absence of anal styles

b.short but broad abdomen and presence of anal styles

c.short cut broad abdomen and anal cerci

d.long but broad abdomen and anal cerci

46. Sea hare is the common name of

a.Octopus

b.Sepia

c.Doris

d.Aplysia

47. Pharyngeal gill slits are found in

a.shark

b.cuttle fish

c.star fish

d.cray fish

48. Colouration of frog is due to

a.presence of special chromatophores below the epidermal cells

b.inidescence of skin

c.growth of algal colonies of skin

d.presence of melanophores

49. The leaf lamina are generally reduced in

a.xerophytes

b.mesophytes

c.epiphytes

d.hydrophytes

50. Among the following which is a test cross?

a.TT x Tt

b.TT x TT

c.Tt x tt

d.Tt x Tt

51. The sequence of ear ossicles starting from the eardrum is

a.incus, stapes, malleus

b.malleus, incus, stapes

c.stapes, incus, malleus

d.malleus, stapes, incus

52. Dental formula of adult human being is

a.2,1,3,2/2,1,3,2

b.2,1,2,3/2,1,2,3

c.2,1,3,3/2,1,3,3

d.2,1,2,2/2,1,2,2

53. The resemblance between the south American llama and the African camel indicates a common ancestry. This is

a.homological evidence for evolution

b.palaentological evidence for evolution

c.biogeographic evidence for evolution

d.none of these

54. The 13-celled male gametophyte of Selaginella has

a.12 cells of antheridium + 1 prothallial

b.9 cells of antheridium + 4 prothallial

c.8 cells of antheridium + 5 prothallial cells

d.10 cells of antheridium + 3 prothallial cells

55. Failure of descending testis into the scrotum is known as

a.impotency

b.castration

c.paedogenes

d.cryptorchidism

56. The process of formation of blood corpuscles is known as

a.Haemolysis

b.Haemopoiesis

c.Haemaglutination

d.Haemophilia

57. The largest ovule in plant kingdom is seen is

a.Cycas revolute

b.Both A and B

c.Cycas circinalis

d.None of these

58. If the main stem becomes fleshy and photosynthetic, it is called

a.cladode

b.none of these

c.phylloclade

d.phyllode

59. What amount of blood is ejected by ventricle per minute?

a.2 litres

b.5 litres

c.15 litres

d.10 litres

60. Syngamy means

a.fusion of cytoplasm

b.fusion of gametes

c.fusion of dissimilar spores

d.fusion of similar spores

61. Chlorophyll contains

a.Fe

b.Mg

c.Mn

d.K

62. Sea cucumber belongs to class

a.Holothuroidea

b.Crinoidea

c.Ophiuroidea

d.Asteroidea

63. Presence of a vestigial appendix in man suggests that our forebears were

a.omnivores

b.fruit eaters

c.herbivores

d.carnivores

64. A sucker fish (Remora) attached to the body of shark would exemplify

a.cooperation

b.mutualism

c.commensalism

d.parasitism

65. A mammals which never drinks water is

a.kangaroo rat

b.kangaroo

c.spiny ant eater

d.shrew

66. Colour is perceived by

a.cones in retina

b.lense only

c.cornea-lens complex

d.rods in retina

67. The first invertebrates to develop a true nervous system are

a.annelids

b.coelenterates

c.sponges

d.arthropods

68. The smallest cranial nerve is

a.auditory

b.olfactory

c.optic

d.abducens

69. Flame cells are the excretory organs of animals belonging the phylum

a.porifera

b.protozoa

c.platyhelminthes

d.coelenterate

70. Squeezing of leucocytes out from the endothelium of capillaries to fight foreign agents is known as

a.didelphis

b.diakinesis

c.diapedesis

d.diapause

71. Multiflagellate sperms are the characteristic of

a.Ferns

b.Pogonatum

c.Riccia

d.Mosses

72. Sexual reproduction or two fusing gametes of Spirogyra are

a.morphologically similar (isogamous) and physiologically dissimilar (anisogamous)

b.morophologically dissimilar

c.morphologically similar

d.morphologically and physiologically dissimilar

73. Alternation of generations is otherwise known as

a.Dimorphism

b.Epigenesis

c.Metagenesis

d.Biogenesis

74. The respiratory organs in a freshwater mussel are

a.gills

b.pulmonary sacs

c.book lungs

d.respiratory siphons

75. The earliest ancestor of horse from early Eocene period is

a.miobibbus

b.pliohippus

c.eohippus

d.merychippus

76. Kala-azar is a disease caused by

a.Leishmania donovani transmitted by sandfly

b.Wuchereria bancrofti transmitted by Culex

c.Taenia solium transmitted by infected pork

d.Trypanosma gambiense transmitted by Tsetse fly

77. In human body, the number of bones is

a.406

b.106

c.306

d.206

78. The best indicator of SO2 pollution is

a.Lichens

b.Ferns

c.Fungus

d.Algae

79. The deficiency of magnesium results in

a.interveinal chlorosis

b.leaf chlorosis

c.none of these

d.wilting of plants

80. Moulting or shedding of skin in snakes is done by

a.dermis

b.cornified cells

c.stratum germinativum

d.epidermis

81. Sponges belong to the phylum

a.mastigophora

b.porifera

c.coelenterate

d.sporozoa

82. A posterior pituitary hormone released during parturition is

a.ICSH

b.Oxytocin

c.ACTH

d.Vasopressin

83. Parachute mechanism of fruit and seed dispersal is due to structure called

a.hooks

b.pappus

c.bracts

d.corolla

84. Sebaceous glands are found in

a.epithelium of stomach of frog

b.epidermis of skin of mammals

c.epithelium of intestine of frog

d.dermis of skin of mammals

85. Typically all mammals have seven vertebrae except

a.giraffe

b.man

c.elephant

d.sea cow

86. The protein deficiency disease is known as

a.scurvy

b.kwashiorkor

c.eczema

d.mycoses

87. Worms of Phylum Platyhelminthes are triploblastic, but do not possess

a.alimentary canal

b.a gastro vascular cavity

c.mouth

d.body cavity

88. Colour blidness is caused due to

a.absence of rods in retina

b.sex-linked abnormality

c.deficiency of vitamin C

d.absence of visual purple in retina

89. Infection of Ascaris usually occurs by

a.imperfectly cooked pork

b.contaminated water and vegetables

c.tse tse fly

d.mosquito bite

90. The endosperm cell of an angiosperm has 24 chromosomes, the number of chromosomes in its megaspore, shall be

a.48

b.16

c.18

d.24

91. The expulsion of completely developed foetus from the uterus is known as

a.ovuation

b.placentation

c.gestation

d.parturition

92. A method of cell division which is characterized by the exact chromosome duplication is:

a.None of these

b.Meiosis

c.Mitosis

d.Apomixis

93. A motor nerve carries impulses from

a.effectors to cranial nerves

b.from cranial nerves to the effectors

c.effectors to central nervous system

d.central nervous system to the effector

94. Groundnut is

a.Psidium guajava

b.Arachis hypogaea

c.Cannabis sativa

d.Oryza sativa

95. Islets of Langerhans secrete

a.glucagons

b.none of these

c.enzymes

d.insulin

96. The sickle cell anaemia results in

a.polio

b.polycemia

c.leukaemia

d.polychthemia

97. Adams apple in man is

a.epiglottis

b.thyroid cartilage of larynx

c.cartilages of the trachea

d.cartilage of hyoid apparatus

98. During fertilization the spermatozoa penetrate through the egg membranes with the help of

a.flagellum

b.mitochondria located at the middle piece

c.acrosome

d.sperm lysins released from the acrosome

99. Gametophytic generation is dominant in

a.Angiosperms

b.Bryophytes

c.Pteridophytes

d.Gymnosperms

100. Birds and reptiles excrete their nitrogenous waste in the form of

a.uric acid

b.urea and uric acid respectively

c.uric acid and urea

d.urea

CUET 2024 Biology MCQ Question Answers – Practice MCQ Questions on Biology

Biology MCQ Question Answers for CUET 2024

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