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Sample paper · NEET Preparation Botany

Botany · Sample Paper 1

NEET-UG pattern — 45 MCQs on the full Class 11 + 12 Botany syllabus, 4 marks each.

45 questions · 180 marks · 45 minutes

Timed, marked on submit · free with an account

General instructions

  1. This paper has 45 multiple-choice questions, each with one correct answer. All are compulsory.
  2. Section A — Q1 to Q24: Class 11 syllabus. Section B — Q25 to Q45: Class 12 syllabus.
  3. Each correct answer earns 4 marks. In the real NEET a wrong answer costs 1 mark; this practice paper does not deduct marks.
  4. Time: 45 minutes — the share of Botany in the 180-minute NEET paper.

Section A · Class 11 syllabus

Questions 1–24, 4 marks each.

  1. Question 14 marks

    The basic unit of classification is

    1. A.genus
    2. B.species
    3. C.family
    4. D.order
  2. Question 24 marks

    Which taxonomic aid has dried, pressed and preserved plant specimens on sheets?

    1. A.museum
    2. B.herbarium
    3. C.botanical garden
    4. D.key
  3. Question 34 marks

    Which organisms have no cell wall?

    1. A.cyanobacteria
    2. B.mycoplasma
    3. C.diatoms
    4. D.yeast
  4. Question 44 marks

    Diatomaceous earth is formed from the cell walls of

    1. A.dinoflagellates
    2. B.chrysophytes
    3. C.euglenoids
    4. D.slime moulds
  5. Question 54 marks

    Which fungi lack a known sexual stage?

    1. A.phycomycetes
    2. B.ascomycetes
    3. C.basidiomycetes
    4. D.deuteromycetes
  6. Question 64 marks

    Agar is obtained from

    1. A.Gelidium
    2. B.Laminaria
    3. C.Spirogyra
    4. D.Volvox
  7. Question 74 marks

    In bryophytes, the dominant phase is the

    1. A.sporophyte
    2. B.gametophyte
    3. C.protonema only
    4. D.prothallus
  8. Question 84 marks

    Heterospory is seen in

    1. A.Selaginella
    2. B.Equisetum
    3. C.Pteris
    4. D.Marchantia
  9. Question 94 marks

    Vexillary aestivation is characteristic of the family

    1. A.Solanaceae
    2. B.Liliaceae
    3. C.Fabaceae
    4. D.Brassicaceae
  10. Question 104 marks

    Pneumatophores are found in

    1. A.Rhizophora
    2. B.maize
    3. C.banyan
    4. D.carrot
  11. Question 114 marks

    Free central placentation is seen in

    1. A.Dianthus
    2. B.pea
    3. C.mustard
    4. D.tomato
  12. Question 124 marks

    Casparian strips are present in the

    1. A.pericycle
    2. B.endodermis
    3. C.cortex
    4. D.epidermis
  13. Question 134 marks

    Vascular bundles in a monocot stem are

    1. A.open and in a ring
    2. B.closed and scattered
    3. C.radial
    4. D.open and scattered
  14. Question 144 marks

    The site of protein synthesis is

    1. A.lysosome
    2. B.ribosome
    3. C.Golgi body
    4. D.vacuole
  15. Question 154 marks

    The fluid mosaic model of the membrane was given by

    1. A.Watson and Crick
    2. B.Singer and Nicolson
    3. C.Schleiden and Schwann
    4. D.Robertson
  16. Question 164 marks

    Synapsis occurs in

    1. A.leptotene
    2. B.zygotene
    3. C.pachytene
    4. D.diplotene
  17. Question 174 marks

    DNA replication takes place in the

    1. A.G₁ phase
    2. B.S phase
    3. C.G₂ phase
    4. D.M phase
  18. Question 184 marks

    The primary CO₂ acceptor in C₄ plants is

    1. A.RuBP
    2. B.PEP
    3. C.OAA
    4. D.PGA
  19. Question 194 marks

    Oxygen released in photosynthesis comes from

    1. A.CO₂
    2. B.water
    3. C.glucose
    4. D.chlorophyll
  20. Question 204 marks

    To make one molecule of glucose, the Calvin cycle needs

    1. A.18 ATP and 12 NADPH
    2. B.12 ATP and 18 NADPH
    3. C.6 ATP and 6 NADPH
    4. D.38 ATP
  21. Question 214 marks

    The RQ of fats is

    1. A.1
    2. B.less than 1
    3. C.more than 1
    4. D.zero
  22. Question 224 marks

    The first product of the Krebs cycle is

    1. A.oxaloacetic acid
    2. B.citric acid
    3. C.pyruvic acid
    4. D.malic acid
  23. Question 234 marks

    Which PGR promotes stomatal closure under water stress?

    1. A.auxin
    2. B.gibberellin
    3. C.abscisic acid
    4. D.cytokinin
  24. Question 244 marks

    Bolting in cabbage is caused by

    1. A.auxin
    2. B.gibberellin
    3. C.ethylene
    4. D.ABA

Section B · Class 12 syllabus

Questions 25–45, 4 marks each.

  1. Question 254 marks

    The exine of the pollen grain is made of

    1. A.cellulose
    2. B.pectin
    3. C.sporopollenin
    4. D.lignin
  2. Question 264 marks

    A typical angiosperm embryo sac is

    1. A.8-celled, 7-nucleate
    2. B.7-celled, 8-nucleate
    3. C.8-celled, 8-nucleate
    4. D.7-celled, 7-nucleate
  3. Question 274 marks

    Pollination by water occurs in

    1. A.Vallisneria
    2. B.lotus
    3. C.water hyacinth
    4. D.maize
  4. Question 284 marks

    The dihybrid F₂ phenotypic ratio is

    1. A.3 : 1
    2. B.1 : 2 : 1
    3. C.9 : 3 : 3 : 1
    4. D.1 : 1 : 1 : 1
  5. Question 294 marks

    Flower colour in snapdragon shows

    1. A.complete dominance
    2. B.incomplete dominance
    3. C.co-dominance
    4. D.pleiotropy
  6. Question 304 marks

    A test cross is a cross between an F₁ hybrid and

    1. A.the dominant parent
    2. B.the recessive parent
    3. C.another F₁
    4. D.an F₂ plant
  7. Question 314 marks

    If a DNA has 20% adenine, the percentage of guanine is

    1. A.20%
    2. B.30%
    3. C.40%
    4. D.60%
  8. Question 324 marks

    The enzyme that joins Okazaki fragments is

    1. A.helicase
    2. B.primase
    3. C.DNA ligase
    4. D.topoisomerase
  9. Question 334 marks

    Semi-conservative DNA replication was proved by

    1. A.Griffith
    2. B.Hershey and Chase
    3. C.Meselson and Stahl
    4. D.Avery
  10. Question 344 marks

    In the lac operon, the inducer is

    1. A.glucose
    2. B.lactose (allolactose)
    3. C.the repressor
    4. D.galactosidase
  11. Question 354 marks

    Statins, which lower blood cholesterol, are obtained from

    1. A.Monascus purpureus
    2. B.Trichoderma
    3. C.Streptococcus
    4. D.Aspergillus niger
  12. Question 364 marks

    Biogas is produced by

    1. A.methanogens
    2. B.cyanobacteria
    3. C.Rhizobium
    4. D.Lactobacillus
  13. Question 374 marks

    Which is a free-living nitrogen-fixing bacterium?

    1. A.Rhizobium
    2. B.Azotobacter
    3. C.Glomus
    4. D.Trichoderma
  14. Question 384 marks

    The logistic growth equation is

    1. A.dN/dt=rNdN/dt = rN
    2. B.dN/dt=rN(K−N)/KdN/dt = rN(K - N)/K
    3. C.dN/dt=K−NdN/dt = K - N
    4. D.N=rKN = rK
  15. Question 394 marks

    A cuckoo laying eggs in a crow's nest is an example of

    1. A.mutualism
    2. B.brood parasitism
    3. C.commensalism
    4. D.competition
  16. Question 404 marks

    The interaction where one species benefits and the other is unaffected is

    1. A.amensalism
    2. B.commensalism
    3. C.mutualism
    4. D.predation
  17. Question 414 marks

    The pyramid of biomass in a pond ecosystem is generally

    1. A.upright
    2. B.inverted
    3. C.spindle-shaped
    4. D.linear
  18. Question 424 marks

    Pioneer species on bare rock are usually

    1. A.mosses
    2. B.lichens
    3. C.grasses
    4. D.shrubs
  19. Question 434 marks

    Net primary productivity equals

    1. A.GPP + respiration
    2. B.GPP − respiration
    3. C.GPP × respiration
    4. D.respiration − GPP
  20. Question 444 marks

    Which is an example of ex situ conservation?

    1. A.national park
    2. B.sacred grove
    3. C.seed bank
    4. D.biosphere reserve
  21. Question 454 marks

    Species diversity generally

    1. A.increases towards the poles
    2. B.decreases from the equator to the poles
    3. C.is the same at all latitudes
    4. D.is highest in deserts

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