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 first invertebrates to develop a true nervous system are

a.annelids

b.coelenterates

c.arthropods

d.sponges

2. Gametophytic generation is dominant in

a.Bryophytes

b.Angiosperms

c.Pteridophytes

d.Gymnosperms

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

a.diapedesis

b.diapause

c.diakinesis

d.didelphis

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

a.cooperation

b.commensalism

c.parasitism

d.mutualism

5. Female cone is absent in

a.None of these

b.Cycas

c.Taxus

d.Pinus

6. Ostia are meant to

a.pass out water current

b.admit water current

c.ingest food

d.excrete waste products

7. The locomotor organs of Echinoderms is called

a.parapodia

b.pseudopodia

c.setae

d.tube feet

8. Adams apple in man is

a.cartilage of hyoid apparatus

b.thyroid cartilage of larynx

c.epiglottis

d.cartilages of the trachea

9. Colouration of frog is due to

a.inidescence of skin

b.presence of special chromatophores below the epidermal cells

c.growth of algal colonies of skin

d.presence of melanophores

10. In human body, the number of bones is

a.206

b.406

c.306

d.106

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

a.Whooping cough

b.Rabies

c.Small pox

d.Influenza

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

a.phylloclade

b.phyllode

c.cladode

d.none of these

13. Sea hare is the common name of

a.Octopus

b.Doris

c.Sepia

d.Aplysia

14. The largest ovule in plant kingdom is seen is

a.None of these

b.Both A and B

c.Cycas revolute

d.Cycas circinalis

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

a.lack of sufficient amount of haemoglobin

b.arterial hypoxia

c.lack of sufficient amount of erythrocytes

d.anaemic hypoxia

16. 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

17. Sexual reproduction or two fusing gametes of Spirogyra are

a.morphologically similar

b.morphologically and physiologically dissimilar

c.morophologically dissimilar

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

18. Which disease is caused by a nematode?

a.Amoebiasis

b.Poliomyelitis

c.Leprosy

d.Filariasis

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

a.48

b.18

c.16

d.24

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

a.placentation

b.parturition

c.ovuation

d.gestation

21. Trophozoites of E.histolytica reproduced by

a.binary fission

b.budding

c.conjugation

d.autogamy

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

a.porifera

b.coelenterate

c.protozoa

d.platyhelminthes

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

a.occurrence of metamoophosis on amphibian

b.change over to herbivorous feeding

c.development of sturdy eggs

d.evolution of terrestrial habit

24. 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

25. The protein deficiency disease is known as

a.scurvy

b.mycoses

c.eczema

d.kwashiorkor

26. Androgens are secreted from

a.Leydig cells and placenta

b.Leydig cels and adrenal cortex

c.Adenohypophysis and tesis

d.Testis and adrenal cortex

27. The leaf lamina are generally reduced in

a.mesophytes

b.hydrophytes

c.xerophytes

d.epiphytes

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

a.A pair of testes

b.A pair of ovaries and oviducts

c.Cloaca

d.A pair of large kidneys

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

a.stratum germinativum

b.cornified cells

c.dermis

d.epidermis

30. Penicillium is a member of:

a.Ascomyectes

b.Phycomycetes

c.Deuteromycetes

d.Basidiomycetes

31. What is monothecous stamen?

a.It is a stamen with no lobes

b.It is a stamen with many lobes

c.It is a stamen with one lobe

d.It is a sterile stamen

32. Colour blidness is caused due to

a.absence of visual purple in retina

b.absence of rods in retina

c.deficiency of vitamin C

d.sex-linked abnormality

33. In rabbit, the danger signal is given by

a.fore limbs

b.tail

c.sound

d.external ear

34. 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.GUA AUC GUA GUA CUG

b.GTA ATG GTA GAT CTA

c.GTA ATC GAT GTA CTA

d.TAG ATG ATG GUA CUG

35. Commercial source of citric acid is:

a.Citrus fruit

b.Aspergillus

c.Yeast

d.Penicillium

36. Sebaceous glands are found in

a.epithelium of intestine of frog

b.epithelium of stomach of frog

c.dermis of skin of mammals

d.epidermis of skin of mammals

37. The deficiency of magnesium results in

a.wilting of plants

b.interveinal chlorosis

c.none of these

d.leaf chlorosis

38. Which of the following statements is correct?

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

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

c.Blood of earthworm is blue in colour

d.Blood pigment of earthworm is haemocyanin

39. Viruses were discovered by

a.Herelle

b.Twort

c.Iwanowiski

d.Stanley

40. Germ theory of disease was proposed by

a.L. Pasteur

b.Robert Koch

c.T. Boveri

d.F. Jacob

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

a.anterior fins

b.paired fins

c.pectoral fins

d.ray fins

42. Typically all mammals have seven vertebrae except

a.man

b.giraffe

c.sea cow

d.elephant

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

a.germination of seed

b.formation of buds

c.formation of pollen grains

d.formation of root primordia

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

a.pliohippus

b.miobibbus

c.eohippus

d.merychippus

45. Colour is perceived by

a.rods in retina

b.lense only

c.cornea-lens complex

d.cones in retina

46. Among the following which is a test cross?

a.TT x TT

b.TT x Tt

c.Tt x Tt

d.Tt x tt

47. Malpighian bodies are found in

a.kidney of vertebrates and is involved in selective reabsorption

b.kidney of vertebrates and is involved in ultrafiltration

c.insects and involved in excretion

d.kidney of vertebrates and is involved in passive filtration

48. Algae and fungi are characterised by the possession of

a.chloroplasts

b.embryo

c.unicellular jacketed sex organs

d.multicellular jacketed sex organs

49. Which of the following is commercially most valuable:

a.Sapwood

b.Autumnwood

c.Spring wood

d.Heartwood

50. Nematocysts of Hydra are important for

a.cataching prey

b.testing the food

c.paralysing prey

d.testing the water

51. Which is the correct food chain?

a.grass → wolf → deer → buffalo

b.grass → insect → bird → snake

c.bacteria → grass → rabbit → wolf

d.grass → snake → inset → deer

52. Islets of Langerhans secrete

a.insulin

b.enzymes

c.none of these

d.glucagons

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

a.menstruation

b.gestation

c.menopause

d.puberty

54. The best indicator of SO2 pollution is

a.Ferns

b.Algae

c.Fungus

d.Lichens

55. Chlorophyll contains

a.Mg

b.Mn

c.K

d.Fe

56. Oil in the skin is secreted by

a.hair follicles

b.sebaceous glands

c.mucous glands

d.sweat glands

57. Which one of these is a cancerous disease

a.Malaria

b.Angina

c.Leukaemia

d.Kwashiorkor

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

a.pappus

b.bracts

c.hooks

d.corolla

59. The study of migration of birds is called

a.Phenology

b.Nidology

c.Ecology

d.Ornithology

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

a.Bacillus subtilis

b.None of these

c.Rhizobium

d.E. coli

61. Kala-azar is a disease caused by

a.Trypanosma gambiense transmitted by Tsetse fly

b.Taenia solium transmitted by infected pork

c.Wuchereria bancrofti transmitted by Culex

d.Leishmania donovani transmitted by sandfly

62. The locomotion of snake is helped by

a.ribs and reduced limbs

b.reduced limbs

c.ribs only

d.reduced ribs

63. Fat soluble vitamins are

a.A, D and E

b.E, D and B

c.B, C and D

d.A, B and C

64. The smallest cranial nerve is

a.auditory

b.optic

c.olfactory

d.abducens

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

a.malleus, stapes, incus

b.malleus, incus, stapes

c.stapes, incus, malleus

d.incus, stapes, malleus

66. Sponges belong to the phylum

a.coelenterate

b.sporozoa

c.mastigophora

d.porifera

67. Sea cucumber belongs to class

a.Ophiuroidea

b.Crinoidea

c.Holothuroidea

d.Asteroidea

68. Dental formula of adult human being is

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

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

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

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

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

a.mouth

b.body cavity

c.alimentary canal

d.a gastro vascular cavity

70. Bryophyta acts as a connecting link between

a.algae and fungi

b.thallophyta and pteridophyta

c.pteridophyta and gymnosperms

d.terrestrial fungi and aquatic fungi

71. Study of soil is called:

a.Nematology

b.Pedology

c.Ecology

d.Pathology

72. Anticoagulant secreted by leech is

a.Haemozoin

b.Heparin

c.Hirudin

d.Haematin

73. Multiflagellate sperms are the characteristic of

a.Ferns

b.Pogonatum

c.Riccia

d.Mosses

74. Red rust of tea is caused by

a.Puccinia

b.Pteris

c.Oedogonium

d.Cephaleuros

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

a.5 litres

b.15 litres

c.2 litres

d.10 litres

76. Syngamy means

a.fusion of gametes

b.fusion of similar spores

c.fusion of dissimilar spores

d.fusion of cytoplasm

77. The sickle cell anaemia results in

a.polycemia

b.polio

c.polychthemia

d.leukaemia

78. Pharyngeal gill slits are found in

a.shark

b.cuttle fish

c.cray fish

d.star fish

79. A mammals which never drinks water is

a.kangaroo

b.kangaroo rat

c.shrew

d.spiny ant eater

80. Infection of Ascaris usually occurs by

a.contaminated water and vegetables

b.tse tse fly

c.imperfectly cooked pork

d.mosquito bite

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

a.short cut broad abdomen and anal cerci

b.Short but broad abdomen and absence of anal styles

c.short but broad abdomen and presence of anal styles

d.long but broad abdomen and anal cerci

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

a.cryptorchidism

b.castration

c.impotency

d.paedogenes

83. Groundnut is

a.Psidium guajava

b.Cannabis sativa

c.Oryza sativa

d.Arachis hypogaea

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

a.1,600 kcal/day

b.3,200 kcal/day

c.4,000 kcal/day

d.2,600 kcal/day

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

a.acrosome

b.mitochondria located at the middle piece

c.flagellum

d.sperm lysins released from the acrosome

86. The 13-celled male gametophyte of Selaginella has

a.12 cells of antheridium + 1 prothallial

b.9 cells of antheridium + 4 prothallial

c.10 cells of antheridium + 3 prothallial cells

d.8 cells of antheridium + 5 prothallial cells

87. The respiratory organs in a freshwater mussel are

a.book lungs

b.gills

c.pulmonary sacs

d.respiratory siphons

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

a.family

b.order

c.species

d.class

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

a.Meiosis

b.Apomixis

c.None of these

d.Mitosis

90. A posterior pituitary hormone released during parturition is

a.ACTH

b.Oxytocin

c.ICSH

d.Vasopressin

91. A motor nerve carries impulses from

a.effectors to central nervous system

b.effectors to cranial nerves

c.central nervous system to the effector

d.from cranial nerves to the effectors

92. Alternation of generations is otherwise known as

a.Dimorphism

b.Epigenesis

c.Metagenesis

d.Biogenesis

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

a.herbivores

b.omnivores

c.fruit eaters

d.carnivores

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

a.biotic communities

b.organisms

c.trophic levels

d.biomass

95. Phyllotaxy is the arrangement of

a.leaves

b.veins

c.flower buds

d.branches

96. Which of these lives in water permanently?

a.Necturus

b.Salamander

c.Ichthyophis

d.Frogs

97. Which mosquito sits making an acute angle?

a.Psorophora

b.Aedes

c.Culex

d.Anopheles

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

a.Haemaglutination

b.Haemophilia

c.Haemolysis

d.Haemopoiesis

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

a.Peripatus

b.Balanoglossus

c.Sphenodon

d.Limulus

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

a.urea

b.uric acid

c.urea and uric acid respectively

d.uric acid and urea

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

Biology MCQ Question Answers for CUET 2024

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