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NEET Botany MCQs: Class-XI and Class-XII



NEET Botany MCQs: Class-XI and Class-XII

In an ecosystem if the Net Primary Productivity (NPP) of first trophic level is 100x(kcalm–2)yr–1, what would be the GPP (Gross Primary Productivity) of the third trophic level of the same ecosystem?

[class-xii ]

  • 10x(kcalm–2)yr–1
  • 100x/3x(kcalm–2)yr–1
  • x/10(kcalm–2)yr–1
  • x(kcalm–2)yr–1
  • Correct Option: A  [ 10x(kcalm–2)yr–1 ]

    Remark: NCERT Page No.206, (Topic-12.2 PRODUCTIVITY)

Match List I with List II:

List-I List-II
A. Rose I. Twisted aestivation
B. Pea II. Perigynous flower
C. Cotton III. Drupe
D. Mango IV. Marginal placentation
Choose the correct answer form the options given below:

[class-xi ]

  • A-I, B-II, C-III, D-IV
  • A-II, B-IV, C-I, D-III
  • A-II, B-III, C-IV, D-I
  • A-IV, B-III, C-II, D-I
  • Correct Option: B  [ A-II, B-IV, C-I, D-III ]

    Remark: Rose-NCERT Page No.63, (Topic-5.5 THE FLOWER)
    Pea-NCERT Page No.65, (Topic-5.5.1.4 Gynoecium)
    Cotton-NCERT Page No.63, (Topic- 5.5.1.2 Corolla)
    Mango-NCERT Page No.65, (Topic- 5.6 THE FRUIT)

Match List I with List II:

List-I List-II
A. Robert May I. Species-Area relationship
B. Alexander von Humboldt II. Long term ecosystem experiment using out door plots
C. Paul Ehrlich III. Global species diversity at about 7 million
D. David Tilman IV. Rivet popper hypothesis
Choose the correct answer form the options given below:

[class-xii ]

  • A-III, B-I, C-IV, D-II
  • A-II, B-III, C-I, D-IV
  • A-III, B-IV, C-II, D-I
  • A-I, B-III, C-II, D-IV
  • Correct Option: A  [ A-III, B-I, C-IV, D-II ]

    Remark: Explanation:
    Robert May -NCERT Page No.217.
    Alexander von Humboldt -NCERT Page No.220.
    Paul Ehrlich-NCERT Page No.221.
    David Tilman -NCERT Page No.221.

Read the following statements and choose the set of correct statements:

In the members of Phaeophyceae,

A. Asexual reproduction occurs usually by biflagellate zoospores.
B. Sexual reproduction is by oogamous method only.
C. Stored food is in the form of carbohydrates which is either mannitol or laminarin.
D. The major pigments found are chlorophyll a, c and carotenoids and xanthophyll.
E. Vegetative cells have a cellulosic wall, usually covered on the outside by gelatinous coating of algin.

Choose the correct answer from the options given below:

[class-xi ]

  • B, C, D and E only
  • A, B, C and D only
  • A, B, C and E only
  • A, C, D and E only
  • Correct Option: D  [ A, C, D and E only ]

    Remark: Explanation: NCERT Page No.26, (Topic-3.1.2 Phaeophyceae)