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 is lacking in the urogenital system of birds?

a.A pair of ovaries and oviducts

b.A pair of large kidneys

c.Cloaca

d.A pair of testes

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

a.stapes, incus, malleus

b.malleus, stapes, incus

c.incus, stapes, malleus

d.malleus, incus, stapes

3. Which of the following is commercially most valuable:

a.Sapwood

b.Autumnwood

c.Heartwood

d.Spring wood

4. The sickle cell anaemia results in

a.polycemia

b.polychthemia

c.leukaemia

d.polio

5. Adams apple in man is

a.epiglottis

b.thyroid cartilage of larynx

c.cartilages of the trachea

d.cartilage of hyoid apparatus

6. Alternation of generations is otherwise known as

a.Dimorphism

b.Metagenesis

c.Biogenesis

d.Epigenesis

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

a.15 litres

b.5 litres

c.10 litres

d.2 litres

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

a.gestation

b.placentation

c.parturition

d.ovuation

9. Groundnut is

a.Oryza sativa

b.Psidium guajava

c.Cannabis sativa

d.Arachis hypogaea

10. Which mosquito sits making an acute angle?

a.Culex

b.Anopheles

c.Psorophora

d.Aedes

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

a.coelenterates

b.sponges

c.arthropods

d.annelids

12. Dental formula of adult human being is

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

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

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

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

13. Commercial source of citric acid is:

a.Citrus fruit

b.Aspergillus

c.Penicillium

d.Yeast

14. Which is the correct food chain?

a.grass → wolf → deer → buffalo

b.grass → snake → inset → deer

c.grass → insect → bird → snake

d.bacteria → grass → rabbit → wolf

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

a.corolla

b.bracts

c.hooks

d.pappus

16. Red rust of tea is caused by

a.Puccinia

b.Cephaleuros

c.Oedogonium

d.Pteris

17. A posterior pituitary hormone released during parturition is

a.Vasopressin

b.ICSH

c.ACTH

d.Oxytocin

18. Pharyngeal gill slits are found in

a.shark

b.star fish

c.cuttle fish

d.cray fish

19. Colour blidness is caused due to

a.sex-linked abnormality

b.absence of visual purple in retina

c.absence of rods in retina

d.deficiency of vitamin C

20. The best indicator of SO2 pollution is

a.Lichens

b.Ferns

c.Fungus

d.Algae

21. Ostia are meant to

a.pass out water current

b.admit water current

c.ingest food

d.excrete waste products

22. The leaf lamina are generally reduced in

a.xerophytes

b.epiphytes

c.mesophytes

d.hydrophytes

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

a.pectoral fins

b.anterior fins

c.paired fins

d.ray fins

24. Typically all mammals have seven vertebrae except

a.elephant

b.man

c.sea cow

d.giraffe

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

a.mitochondria located at the middle piece

b.acrosome

c.sperm lysins released from the acrosome

d.flagellum

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

a.Balanoglossus

b.Sphenodon

c.Limulus

d.Peripatus

27. Nematocysts of Hydra are important for

a.paralysing prey

b.testing the water

c.cataching prey

d.testing the food

28. Which of these lives in water permanently?

a.Ichthyophis

b.Salamander

c.Necturus

d.Frogs

29. In human body, the number of bones is

a.206

b.306

c.406

d.106

30. Sexual reproduction or two fusing gametes of Spirogyra are

a.morphologically and physiologically dissimilar

b.morphologically similar

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

d.morophologically dissimilar

31. Female cone is absent in

a.Pinus

b.Cycas

c.Taxus

d.None of these

32. Trophozoites of E.histolytica reproduced by

a.binary fission

b.autogamy

c.conjugation

d.budding

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

a.24

b.18

c.48

d.16

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.TAG ATG ATG GUA CUG

b.GTA ATC GAT GTA CTA

c.GTA ATG GTA GAT CTA

d.GUA AUC GUA GUA CUG

35. Penicillium is a member of:

a.Basidiomycetes

b.Ascomyectes

c.Phycomycetes

d.Deuteromycetes

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

a.None of these

b.Meiosis

c.Mitosis

d.Apomixis

37. A mammals which never drinks water is

a.spiny ant eater

b.kangaroo

c.kangaroo rat

d.shrew

38. The protein deficiency disease is known as

a.mycoses

b.eczema

c.kwashiorkor

d.scurvy

39. Phyllotaxy is the arrangement of

a.flower buds

b.leaves

c.veins

d.branches

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

a.paedogenes

b.cryptorchidism

c.impotency

d.castration

41. The smallest cranial nerve is

a.auditory

b.optic

c.abducens

d.olfactory

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

a.phylloclade

b.none of these

c.cladode

d.phyllode

43. Which disease is caused by a nematode?

a.Filariasis

b.Leprosy

c.Amoebiasis

d.Poliomyelitis

44. In rabbit, the danger signal is given by

a.sound

b.tail

c.fore limbs

d.external ear

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

a.coelenterate

b.protozoa

c.platyhelminthes

d.porifera

46. The locomotor organs of Echinoderms is called

a.parapodia

b.setae

c.pseudopodia

d.tube feet

47. The study of migration of birds is called

a.Ecology

b.Nidology

c.Ornithology

d.Phenology

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

a.formation of pollen grains

b.formation of buds

c.formation of root primordia

d.germination of seed

49. Malpighian bodies are found in

a.insects and involved in excretion

b.kidney of vertebrates and is involved in passive filtration

c.kidney of vertebrates and is involved in selective reabsorption

d.kidney of vertebrates and is involved in ultrafiltration

50. Germ theory of disease was proposed by

a.Robert Koch

b.F. Jacob

c.T. Boveri

d.L. Pasteur

51. The locomotion of snake is helped by

a.ribs only

b.reduced limbs

c.ribs and reduced limbs

d.reduced ribs

52. Sponges belong to the phylum

a.sporozoa

b.mastigophora

c.coelenterate

d.porifera

53. 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

54. The respiratory organs in a freshwater mussel are

a.gills

b.book lungs

c.respiratory siphons

d.pulmonary sacs

55. Bryophyta acts as a connecting link between

a.algae and fungi

b.thallophyta and pteridophyta

c.terrestrial fungi and aquatic fungi

d.pteridophyta and gymnosperms

56. Which of the following statements is correct?

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

b.Blood of earthworm is blue in colour

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

d.Blood pigment of earthworm is haemocyanin

57. The largest ovule in plant kingdom is seen is

a.Cycas circinalis

b.Both A and B

c.None of these

d.Cycas revolute

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

a.merychippus

b.pliohippus

c.miobibbus

d.eohippus

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

a.puberty

b.gestation

c.menopause

d.menstruation

60. Infection of Ascaris usually occurs by

a.tse tse fly

b.imperfectly cooked pork

c.contaminated water and vegetables

d.mosquito bite

61. A motor nerve carries impulses from

a.from cranial nerves to the effectors

b.effectors to cranial nerves

c.central nervous system to the effector

d.effectors to central nervous system

62. What is monothecous stamen?

a.It is a stamen with many lobes

b.It is a stamen with no lobes

c.It is a stamen with one lobe

d.It is a sterile stamen

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

a.mouth

b.alimentary canal

c.a gastro vascular cavity

d.body cavity

64. Gametophytic generation is dominant in

a.Bryophytes

b.Pteridophytes

c.Gymnosperms

d.Angiosperms

65. 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.1,600 kcal/day

d.4,000 kcal/day

66. Study of soil is called:

a.Nematology

b.Pedology

c.Pathology

d.Ecology

67. 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.evolution of terrestrial habit

d.occurrence of metamoophosis on amphibian

68. Multiflagellate sperms are the characteristic of

a.Ferns

b.Mosses

c.Pogonatum

d.Riccia

69. Anticoagulant secreted by leech is

a.Heparin

b.Hirudin

c.Haemozoin

d.Haematin

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

a.dermis

b.stratum germinativum

c.cornified cells

d.epidermis

71. The deficiency of magnesium results in

a.none of these

b.interveinal chlorosis

c.leaf chlorosis

d.wilting of plants

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

a.uric acid

b.urea and uric acid respectively

c.urea

d.uric acid and urea

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

a.palaentological evidence for evolution

b.homological evidence for evolution

c.biogeographic evidence for evolution

d.none of these

74. Sea hare is the common name of

a.Aplysia

b.Sepia

c.Octopus

d.Doris

75. Algae and fungi are characterised by the possession of

a.unicellular jacketed sex organs

b.multicellular jacketed sex organs

c.embryo

d.chloroplasts

76. Viruses were discovered by

a.Iwanowiski

b.Twort

c.Stanley

d.Herelle

77. Which one of these is a cancerous disease

a.Malaria

b.Kwashiorkor

c.Leukaemia

d.Angina

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

a.Bacillus subtilis

b.E. coli

c.None of these

d.Rhizobium

79. Syngamy means

a.fusion of similar spores

b.fusion of cytoplasm

c.fusion of gametes

d.fusion of dissimilar spores

80. Colour is perceived by

a.lense only

b.rods in retina

c.cornea-lens complex

d.cones in retina

81. 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.lack of sufficient amount of haemoglobin

c.anaemic hypoxia

d.arterial hypoxia

82. Colouration of frog is due to

a.presence of special chromatophores below the epidermal cells

b.presence of melanophores

c.inidescence of skin

d.growth of algal colonies of skin

83. Oil in the skin is secreted by

a.hair follicles

b.sweat glands

c.mucous glands

d.sebaceous glands

84. Androgens are secreted from

a.Leydig cells and placenta

b.Leydig cels and adrenal cortex

c.Adenohypophysis and tesis

d.Testis and adrenal cortex

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

a.Haemophilia

b.Haemopoiesis

c.Haemolysis

d.Haemaglutination

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

a.didelphis

b.diapause

c.diapedesis

d.diakinesis

87. 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

88. Fat soluble vitamins are

a.E, D and B

b.A, B and C

c.A, D and E

d.B, C and D

89. Chlorophyll contains

a.Mg

b.K

c.Fe

d.Mn

90. The function of cristae in a mitochondrion is

a.carbon assimilation

b.electron transport and ATP synthesis

c.elimination of Carbon Dioxide

d.intake of Oxygen

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

a.fruit eaters

b.omnivores

c.herbivores

d.carnivores

92. Sebaceous glands are found in

a.epithelium of stomach of frog

b.epithelium of intestine of frog

c.epidermis of skin of mammals

d.dermis of skin of mammals

93. 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

94. Among the following which is a test cross?

a.TT x TT

b.TT x Tt

c.Tt x Tt

d.Tt x tt

95. Sea cucumber belongs to class

a.Holothuroidea

b.Ophiuroidea

c.Asteroidea

d.Crinoidea

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

a.class

b.family

c.species

d.order

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

a.Small pox

b.Influenza

c.Rabies

d.Whooping cough

98. Islets of Langerhans secrete

a.insulin

b.enzymes

c.glucagons

d.none of these

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

a.cooperation

b.commensalism

c.parasitism

d.mutualism

100. Kala-azar is a disease caused by

a.Taenia solium transmitted by infected pork

b.Leishmania donovani transmitted by sandfly

c.Trypanosma gambiense transmitted by Tsetse fly

d.Wuchereria bancrofti transmitted by Culex

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

Biology MCQ Question Answers for CUET 2024

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