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

a.Influenza

b.Whooping cough

c.Rabies

d.Small pox

2. Oil in the skin is secreted by

a.sweat glands

b.hair follicles

c.sebaceous glands

d.mucous glands

3. In rabbit, the danger signal is given by

a.fore limbs

b.external ear

c.sound

d.tail

4. Sea hare is the common name of

a.Octopus

b.Sepia

c.Doris

d.Aplysia

5. Study of soil is called:

a.Pedology

b.Ecology

c.Nematology

d.Pathology

6. Which disease is caused by a nematode?

a.Leprosy

b.Filariasis

c.Poliomyelitis

d.Amoebiasis

7. The leaf lamina are generally reduced in

a.mesophytes

b.epiphytes

c.xerophytes

d.hydrophytes

8. Multiflagellate sperms are the characteristic of

a.Ferns

b.Riccia

c.Mosses

d.Pogonatum

9. The best indicator of SO2 pollution is

a.Lichens

b.Fungus

c.Algae

d.Ferns

10. Viruses were discovered by

a.Twort

b.Herelle

c.Iwanowiski

d.Stanley

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

a.incus, stapes, malleus

b.stapes, incus, malleus

c.malleus, stapes, incus

d.malleus, incus, stapes

12. Alternation of generations is otherwise known as

a.Dimorphism

b.Biogenesis

c.Epigenesis

d.Metagenesis

13. Which of the following statements is correct?

a.Blood of earthworm is blue in colour

b.Blood pigment of earthworm is haemocyanin

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

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

14. Adams apple in man is

a.cartilages of the trachea

b.cartilage of hyoid apparatus

c.epiglottis

d.thyroid cartilage of larynx

15. Nematocysts of Hydra are important for

a.paralysing prey

b.cataching prey

c.testing the water

d.testing the food

16. Sea cucumber belongs to class

a.Ophiuroidea

b.Crinoidea

c.Asteroidea

d.Holothuroidea

17. Red rust of tea is caused by

a.Oedogonium

b.Pteris

c.Cephaleuros

d.Puccinia

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

a.body cavity

b.alimentary canal

c.a gastro vascular cavity

d.mouth

19. Fat soluble vitamins are

a.A, D and E

b.B, C and D

c.E, D and B

d.A, B and C

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

a.menstruation

b.menopause

c.puberty

d.gestation

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

a.Meiosis

b.None of these

c.Apomixis

d.Mitosis

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

a.fruit eaters

b.herbivores

c.omnivores

d.carnivores

23. The 13-celled male gametophyte of Selaginella has

a.12 cells of antheridium + 1 prothallial

b.10 cells of antheridium + 3 prothallial cells

c.9 cells of antheridium + 4 prothallial

d.8 cells of antheridium + 5 prothallial cells

24. Which one of these is a cancerous disease

a.Angina

b.Leukaemia

c.Kwashiorkor

d.Malaria

25. Chlorophyll contains

a.Mg

b.K

c.Mn

d.Fe

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

a.castration

b.impotency

c.paedogenes

d.cryptorchidism

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

a.short cut broad abdomen and anal cerci

b.long but broad abdomen and anal cerci

c.short but broad abdomen and presence of anal styles

d.Short but broad abdomen and absence of anal styles

28. Androgens are secreted from

a.Leydig cels and adrenal cortex

b.Leydig cells and placenta

c.Adenohypophysis and tesis

d.Testis and adrenal cortex

29. Sexual reproduction or two fusing gametes of Spirogyra are

a.morphologically and physiologically dissimilar

b.morophologically dissimilar

c.morphologically similar

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

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

a.germination of seed

b.formation of pollen grains

c.formation of buds

d.formation of root primordia

31. Penicillium is a member of:

a.Ascomyectes

b.Deuteromycetes

c.Basidiomycetes

d.Phycomycetes

32. The smallest cranial nerve is

a.abducens

b.auditory

c.olfactory

d.optic

33. Sponges belong to the phylum

a.sporozoa

b.mastigophora

c.coelenterate

d.porifera

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

a.biomass

b.trophic levels

c.biotic communities

d.organisms

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

a.arthropods

b.annelids

c.coelenterates

d.sponges

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

a.phylloclade

b.cladode

c.phyllode

d.none of these

37. The study of migration of birds is called

a.Phenology

b.Nidology

c.Ecology

d.Ornithology

38. 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.GTA ATC GAT GTA CTA

b.GUA AUC GUA GUA CUG

c.TAG ATG ATG GUA CUG

d.GTA ATG GTA GAT CTA

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

a.protozoa

b.porifera

c.platyhelminthes

d.coelenterate

40. The respiratory organs in a freshwater mussel are

a.gills

b.pulmonary sacs

c.book lungs

d.respiratory siphons

41. Pharyngeal gill slits are found in

a.cuttle fish

b.cray fish

c.star fish

d.shark

42. Ostia are meant to

a.ingest food

b.excrete waste products

c.pass out water current

d.admit water current

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

a.mutualism

b.parasitism

c.cooperation

d.commensalism

44. Colouration of frog is due to

a.inidescence of skin

b.presence of melanophores

c.growth of algal colonies of skin

d.presence of special chromatophores below the epidermal cells

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

a.evolution of terrestrial habit

b.change over to herbivorous feeding

c.development of sturdy eggs

d.occurrence of metamoophosis on amphibian

46. Commercial source of citric acid is:

a.Citrus fruit

b.Aspergillus

c.Yeast

d.Penicillium

47. Female cone is absent in

a.Taxus

b.None of these

c.Pinus

d.Cycas

48. Typically all mammals have seven vertebrae except

a.giraffe

b.sea cow

c.elephant

d.man

49. Infection of Ascaris usually occurs by

a.contaminated water and vegetables

b.imperfectly cooked pork

c.tse tse fly

d.mosquito bite

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

a.10 litres

b.15 litres

c.5 litres

d.2 litres

51. Which of these lives in water permanently?

a.Ichthyophis

b.Necturus

c.Salamander

d.Frogs

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

a.16

b.48

c.18

d.24

53. Bryophyta acts as a connecting link between

a.terrestrial fungi and aquatic fungi

b.thallophyta and pteridophyta

c.algae and fungi

d.pteridophyta and gymnosperms

54. A motor nerve carries impulses from

a.from cranial nerves to the effectors

b.effectors to central nervous system

c.central nervous system to the effector

d.effectors to cranial nerves

55. Sebaceous glands are found in

a.epithelium of intestine of frog

b.dermis of skin of mammals

c.epidermis of skin of mammals

d.epithelium of stomach of frog

56. The sickle cell anaemia results in

a.polychthemia

b.polycemia

c.polio

d.leukaemia

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

a.species

b.class

c.order

d.family

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

a.cornified cells

b.dermis

c.stratum germinativum

d.epidermis

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

a.diapause

b.didelphis

c.diapedesis

d.diakinesis

60. Among the following which is a test cross?

a.TT x TT

b.Tt x Tt

c.TT x Tt

d.Tt x tt

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

a.bracts

b.corolla

c.hooks

d.pappus

62. Groundnut is

a.Arachis hypogaea

b.Psidium guajava

c.Oryza sativa

d.Cannabis sativa

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

a.uric acid and urea

b.uric acid

c.urea and uric acid respectively

d.urea

64. The locomotion of snake is helped by

a.reduced ribs

b.ribs and reduced limbs

c.ribs only

d.reduced limbs

65. Malpighian bodies are found in

a.kidney of vertebrates and is involved in selective reabsorption

b.insects and involved in excretion

c.kidney of vertebrates and is involved in ultrafiltration

d.kidney of vertebrates and is involved in passive filtration

66. The locomotor organs of Echinoderms is called

a.parapodia

b.tube feet

c.setae

d.pseudopodia

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

a.none of these

b.homological evidence for evolution

c.palaentological evidence for evolution

d.biogeographic evidence for evolution

68. The protein deficiency disease is known as

a.mycoses

b.eczema

c.kwashiorkor

d.scurvy

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

a.lack of sufficient amount of erythrocytes

b.anaemic hypoxia

c.arterial hypoxia

d.lack of sufficient amount of haemoglobin

70. Dental formula of adult human being is

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

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

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

d.2,1,3,2/2,1,3,2

71. Which is the correct food chain?

a.grass → insect → bird → snake

b.grass → wolf → deer → buffalo

c.grass → snake → inset → deer

d.bacteria → grass → rabbit → wolf

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

a.Bacillus subtilis

b.Rhizobium

c.E. coli

d.None of these

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

a.flagellum

b.mitochondria located at the middle piece

c.sperm lysins released from the acrosome

d.acrosome

74. Which of the following is commercially most valuable:

a.Autumnwood

b.Spring wood

c.Heartwood

d.Sapwood

75. Gametophytic generation is dominant in

a.Angiosperms

b.Gymnosperms

c.Bryophytes

d.Pteridophytes

76. In human body, the number of bones is

a.406

b.306

c.206

d.106

77. Anticoagulant secreted by leech is

a.Heparin

b.Haematin

c.Hirudin

d.Haemozoin

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

a.1,600 kcal/day

b.4,000 kcal/day

c.2,600 kcal/day

d.3,200 kcal/day

79. Colour is perceived by

a.cornea-lens complex

b.rods in retina

c.lense only

d.cones in retina

80. Germ theory of disease was proposed by

a.L. Pasteur

b.T. Boveri

c.F. Jacob

d.Robert Koch

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

a.ovuation

b.parturition

c.placentation

d.gestation

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

a.paired fins

b.ray fins

c.anterior fins

d.pectoral fins

83. A mammals which never drinks water is

a.kangaroo rat

b.shrew

c.kangaroo

d.spiny ant eater

84. Syngamy means

a.fusion of gametes

b.fusion of dissimilar spores

c.fusion of cytoplasm

d.fusion of similar spores

85. Islets of Langerhans secrete

a.enzymes

b.none of these

c.insulin

d.glucagons

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

a.A pair of large kidneys

b.A pair of testes

c.Cloaca

d.A pair of ovaries and oviducts

87. The largest ovule in plant kingdom is seen is

a.Cycas circinalis

b.None of these

c.Cycas revolute

d.Both A and B

88. Kala-azar is a disease caused by

a.Leishmania donovani transmitted by sandfly

b.Wuchereria bancrofti transmitted by Culex

c.Trypanosma gambiense transmitted by Tsetse fly

d.Taenia solium transmitted by infected pork

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

a.pliohippus

b.miobibbus

c.eohippus

d.merychippus

90. The deficiency of magnesium results in

a.wilting of plants

b.none of these

c.leaf chlorosis

d.interveinal chlorosis

91. What is monothecous stamen?

a.It is a sterile stamen

b.It is a stamen with one lobe

c.It is a stamen with many lobes

d.It is a stamen with no lobes

92. Algae and fungi are characterised by the possession of

a.chloroplasts

b.embryo

c.multicellular jacketed sex organs

d.unicellular jacketed sex organs

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

a.Peripatus

b.Limulus

c.Balanoglossus

d.Sphenodon

94. Colour blidness is caused due to

a.absence of visual purple in retina

b.sex-linked abnormality

c.absence of rods in retina

d.deficiency of vitamin C

95. Which mosquito sits making an acute angle?

a.Aedes

b.Anopheles

c.Psorophora

d.Culex

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

a.Haemolysis

b.Haemophilia

c.Haemaglutination

d.Haemopoiesis

97. Phyllotaxy is the arrangement of

a.flower buds

b.leaves

c.veins

d.branches

98. A posterior pituitary hormone released during parturition is

a.ICSH

b.Oxytocin

c.ACTH

d.Vasopressin

99. Trophozoites of E.histolytica reproduced by

a.conjugation

b.binary fission

c.autogamy

d.budding

100. The function of cristae in a mitochondrion is

a.intake of Oxygen

b.elimination of Carbon Dioxide

c.electron transport and ATP synthesis

d.carbon assimilation

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

Biology MCQ Question Answers for CUET 2024

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