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. Multiflagellate sperms are the characteristic of

a.Ferns

b.Pogonatum

c.Riccia

d.Mosses

2. Which disease is caused by a nematode?

a.Amoebiasis

b.Poliomyelitis

c.Filariasis

d.Leprosy

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

a.Haemaglutination

b.Haemolysis

c.Haemophilia

d.Haemopoiesis

4. In rabbit, the danger signal is given by

a.fore limbs

b.external ear

c.sound

d.tail

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

a.sponges

b.annelids

c.coelenterates

d.arthropods

6. Commercial source of citric acid is:

a.Yeast

b.Penicillium

c.Citrus fruit

d.Aspergillus

7. 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.2,1,2,2/2,1,2,2

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

8. Which of the following is commercially most valuable:

a.Spring wood

b.Sapwood

c.Heartwood

d.Autumnwood

9. Kala-azar is a disease caused by

a.Wuchereria bancrofti transmitted by Culex

b.Leishmania donovani transmitted by sandfly

c.Taenia solium transmitted by infected pork

d.Trypanosma gambiense transmitted by Tsetse fly

10. The smallest cranial nerve is

a.auditory

b.olfactory

c.abducens

d.optic

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

a.arterial hypoxia

b.anaemic hypoxia

c.lack of sufficient amount of haemoglobin

d.lack of sufficient amount of erythrocytes

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

a.diapedesis

b.diapause

c.diakinesis

d.didelphis

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

a.mouth

b.a gastro vascular cavity

c.alimentary canal

d.body cavity

14. Study of soil is called:

a.Ecology

b.Pathology

c.Nematology

d.Pedology

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

a.Rhizobium

b.E. coli

c.None of these

d.Bacillus subtilis

16. The largest ovule in plant kingdom is seen is

a.Cycas circinalis

b.None of these

c.Both A and B

d.Cycas revolute

17. Nematocysts of Hydra are important for

a.cataching prey

b.paralysing prey

c.testing the food

d.testing the water

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

a.Small pox

b.Rabies

c.Influenza

d.Whooping cough

19. The protein deficiency disease is known as

a.scurvy

b.mycoses

c.eczema

d.kwashiorkor

20. Ostia are meant to

a.ingest food

b.admit water current

c.excrete waste products

d.pass out water current

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

a.A pair of testes

b.Cloaca

c.A pair of large kidneys

d.A pair of ovaries and oviducts

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

a.germination of seed

b.formation of pollen grains

c.formation of root primordia

d.formation of buds

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

a.2 litres

b.10 litres

c.15 litres

d.5 litres

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

a.pliohippus

b.merychippus

c.eohippus

d.miobibbus

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

a.development of sturdy eggs

b.change over to herbivorous feeding

c.occurrence of metamoophosis on amphibian

d.evolution of terrestrial habit

26. Alternation of generations is otherwise known as

a.Biogenesis

b.Metagenesis

c.Epigenesis

d.Dimorphism

27. Colour blidness is caused due to

a.deficiency of vitamin C

b.absence of visual purple in retina

c.absence of rods in retina

d.sex-linked abnormality

28. Androgens are secreted from

a.Leydig cells and placenta

b.Adenohypophysis and tesis

c.Leydig cels and adrenal cortex

d.Testis and adrenal cortex

29. Malpighian bodies are found in

a.kidney of vertebrates and is involved in ultrafiltration

b.insects and involved in excretion

c.kidney of vertebrates and is involved in passive filtration

d.kidney of vertebrates and is involved in selective reabsorption

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

a.cornified cells

b.epidermis

c.dermis

d.stratum germinativum

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

a.3,200 kcal/day

b.2,600 kcal/day

c.4,000 kcal/day

d.1,600 kcal/day

32. The respiratory organs in a freshwater mussel are

a.respiratory siphons

b.book lungs

c.pulmonary sacs

d.gills

33. Colour is perceived by

a.rods in retina

b.cones in retina

c.cornea-lens complex

d.lense only

34. A posterior pituitary hormone released during parturition is

a.ACTH

b.Oxytocin

c.Vasopressin

d.ICSH

35. Syngamy means

a.fusion of dissimilar spores

b.fusion of cytoplasm

c.fusion of similar spores

d.fusion of gametes

36. Which of these lives in water permanently?

a.Ichthyophis

b.Necturus

c.Salamander

d.Frogs

37. Female cone is absent in

a.Taxus

b.Cycas

c.Pinus

d.None of these

38. In human body, the number of bones is

a.406

b.206

c.306

d.106

39. 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 ATG GTA GAT CTA

b.TAG ATG ATG GUA CUG

c.GUA AUC GUA GUA CUG

d.GTA ATC GAT GTA CTA

40. Penicillium is a member of:

a.Basidiomycetes

b.Deuteromycetes

c.Ascomyectes

d.Phycomycetes

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

a.organisms

b.biotic communities

c.trophic levels

d.biomass

42. Islets of Langerhans secrete

a.enzymes

b.none of these

c.insulin

d.glucagons

43. Chlorophyll contains

a.Fe

b.K

c.Mg

d.Mn

44. Sea cucumber belongs to class

a.Ophiuroidea

b.Asteroidea

c.Crinoidea

d.Holothuroidea

45. The sickle cell anaemia results in

a.polio

b.leukaemia

c.polychthemia

d.polycemia

46. Which mosquito sits making an acute angle?

a.Anopheles

b.Psorophora

c.Aedes

d.Culex

47. Sebaceous glands are found in

a.dermis of skin of mammals

b.epidermis of skin of mammals

c.epithelium of intestine of frog

d.epithelium of stomach of frog

48. Algae and fungi are characterised by the possession of

a.embryo

b.unicellular jacketed sex organs

c.multicellular jacketed sex organs

d.chloroplasts

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

a.menopause

b.puberty

c.menstruation

d.gestation

50. The locomotor organs of Echinoderms is called

a.pseudopodia

b.tube feet

c.parapodia

d.setae

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

a.commensalism

b.cooperation

c.parasitism

d.mutualism

52. Adams apple in man is

a.thyroid cartilage of larynx

b.cartilages of the trachea

c.cartilage of hyoid apparatus

d.epiglottis

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

a.sperm lysins released from the acrosome

b.mitochondria located at the middle piece

c.flagellum

d.acrosome

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

a.stapes, incus, malleus

b.malleus, stapes, incus

c.malleus, incus, stapes

d.incus, stapes, malleus

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

a.Peripatus

b.Balanoglossus

c.Limulus

d.Sphenodon

56. The leaf lamina are generally reduced in

a.mesophytes

b.epiphytes

c.hydrophytes

d.xerophytes

57. Pharyngeal gill slits are found in

a.cuttle fish

b.cray fish

c.star fish

d.shark

58. What is monothecous stamen?

a.It is a stamen with many lobes

b.It is a sterile stamen

c.It is a stamen with no lobes

d.It is a stamen with one lobe

59. Groundnut is

a.Oryza sativa

b.Psidium guajava

c.Arachis hypogaea

d.Cannabis sativa

60. Typically all mammals have seven vertebrae except

a.elephant

b.sea cow

c.man

d.giraffe

61. The deficiency of magnesium results in

a.none of these

b.interveinal chlorosis

c.leaf chlorosis

d.wilting of plants

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

a.phylloclade

b.phyllode

c.none of these

d.cladode

63. Bryophyta acts as a connecting link between

a.thallophyta and pteridophyta

b.pteridophyta and gymnosperms

c.terrestrial fungi and aquatic fungi

d.algae and fungi

64. Colouration of frog is due to

a.growth of algal colonies of skin

b.presence of special chromatophores below the epidermal cells

c.presence of melanophores

d.inidescence of skin

65. Anticoagulant secreted by leech is

a.Haematin

b.Hirudin

c.Haemozoin

d.Heparin

66. Sexual reproduction or two fusing gametes of Spirogyra are

a.morophologically dissimilar

b.morphologically similar

c.morphologically and physiologically dissimilar

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

67. Phyllotaxy is the arrangement of

a.branches

b.leaves

c.flower buds

d.veins

68. Oil in the skin is secreted by

a.sweat glands

b.hair follicles

c.mucous glands

d.sebaceous glands

69. Infection of Ascaris usually occurs by

a.imperfectly cooked pork

b.tse tse fly

c.mosquito bite

d.contaminated water and vegetables

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

a.Mitosis

b.Apomixis

c.None of these

d.Meiosis

71. A mammals which never drinks water is

a.kangaroo

b.kangaroo rat

c.spiny ant eater

d.shrew

72. The study of migration of birds is called

a.Ornithology

b.Nidology

c.Ecology

d.Phenology

73. Red rust of tea is caused by

a.Pteris

b.Puccinia

c.Cephaleuros

d.Oedogonium

74. The locomotion of snake is helped by

a.ribs only

b.reduced ribs

c.reduced limbs

d.ribs and reduced limbs

75. Trophozoites of E.histolytica reproduced by

a.binary fission

b.conjugation

c.budding

d.autogamy

76. Viruses were discovered by

a.Stanley

b.Iwanowiski

c.Twort

d.Herelle

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

a.species

b.family

c.order

d.class

78. Sponges belong to the phylum

a.mastigophora

b.coelenterate

c.sporozoa

d.porifera

79. Germ theory of disease was proposed by

a.Robert Koch

b.T. Boveri

c.L. Pasteur

d.F. Jacob

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

a.placentation

b.ovuation

c.parturition

d.gestation

81. Sea hare is the common name of

a.Sepia

b.Aplysia

c.Doris

d.Octopus

82. A motor nerve carries impulses from

a.effectors to cranial nerves

b.from cranial nerves to the effectors

c.central nervous system to the effector

d.effectors to central nervous system

83. The function of cristae in a mitochondrion is

a.electron transport and ATP synthesis

b.elimination of Carbon Dioxide

c.carbon assimilation

d.intake of Oxygen

84. Gametophytic generation is dominant in

a.Angiosperms

b.Bryophytes

c.Gymnosperms

d.Pteridophytes

85. Which of the following statements is correct?

a.Blood pigment of earthworm is haemocyanin

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

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

d.Blood of earthworm is blue in colour

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

a.hooks

b.pappus

c.corolla

d.bracts

87. 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

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

a.urea and uric acid respectively

b.urea

c.uric acid and urea

d.uric acid

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

a.protozoa

b.porifera

c.coelenterate

d.platyhelminthes

90. The 13-celled male gametophyte of Selaginella has

a.12 cells of antheridium + 1 prothallial

b.8 cells of antheridium + 5 prothallial cells

c.10 cells of antheridium + 3 prothallial cells

d.9 cells of antheridium + 4 prothallial

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

a.biogeographic evidence for evolution

b.homological evidence for evolution

c.palaentological evidence for evolution

d.none of these

92. Which one of these is a cancerous disease

a.Leukaemia

b.Angina

c.Malaria

d.Kwashiorkor

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

a.Short but broad abdomen and absence of anal styles

b.short cut broad abdomen and anal cerci

c.long but broad abdomen and anal cerci

d.short but broad abdomen and presence of anal styles

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

a.herbivores

b.omnivores

c.carnivores

d.fruit eaters

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

a.castration

b.paedogenes

c.impotency

d.cryptorchidism

96. Fat soluble vitamins are

a.B, C and D

b.E, D and B

c.A, B and C

d.A, D and E

97. Which is the correct food chain?

a.grass → snake → inset → deer

b.grass → wolf → deer → buffalo

c.bacteria → grass → rabbit → wolf

d.grass → insect → bird → snake

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

a.48

b.24

c.18

d.16

99. Among the following which is a test cross?

a.Tt x Tt

b.TT x TT

c.TT x Tt

d.Tt x tt

100. The best indicator of SO2 pollution is

a.Ferns

b.Fungus

c.Algae

d.Lichens

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

Biology MCQ Question Answers for CUET 2024

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