Home NEET Botany MCQs NEET Zoology MCQs NEET Syllabus

NEET Botany MCQs: Class-XI and Class-XII



NEET Botany MCQs: Class-XI and Class-XII

Which of the following is not observed during apoplastic pathway ?

[class-xi ]

  • Movement of water occurs through intercellular spaces and wall of the cells
  • The movement does not involve crossing of cell membrane
  • The movement is aided by cytoplasmic streaming
  • Apoplast is continuous and does not provide any barrier to water movement
    • Correct Option: C  [ The movement is aided by cytoplasmic streaming ]

    Remark:

“Girdling Experiment” was performed by Plant Physiologists to identify the plant tissue through which:

[class-xi ]

  • water is transported
  • food is transported
  • for both water and food transportation
  • osmosis is observed
    • Correct Option: B  [ food is transported ]

    Remark:

Which one of the following produces nitrogen fixing nodules on the roots of Alnus?

[class-xi ]

  • Rhizobium
  • Frankia
  • Rhodospirillum
  • Beijerinckia
    • Correct Option: B  [ Frankia ]

    Remark:

Match List-I with List-II.

List-I List-II
(A)Manganese (I)Activates the enzyme catalase
(B)Magnesium (II)Required for pollen germination
(C)Boron (III)Activates enzymes of respiration
(D)Iron (IV)Functions in splitting of water during photosynthesis
Choose the correct answer from the options given below:

[class-xi ]

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

    Remark:

Given below are two statements:
Statement I: The primary CO2 acceptor in C4 plants is phosphoenolpyruvate and is found in the mesophyll cells.
Statement II: Mesophyll cells of C4 plants lack RuBisCo enzyme.
In the light of the above statements, choose the correct answer from the options given below:

[class-xi ]

  • Both Statement I and Statement II are correct
  • Both Statement I and Statement II are incorrect
  • Statement I is correct but Statement II is incorrect
  • Statement I is incorrect but Statement II is correct
    • Correct Option: A  [ Both Statement I and Statement II are correct ]

    Remark:

Which one of the following is not true regarding the release of energy during ATP synthesis through chemiosmosis? It involves:

[class-xi ]

  • Breakdown of proton gradient
  • Breakdown of electron gradient
  • Movement of protons across the membrane to the stroma
  • Reduction of NADP to NADPH2 on the stroma side of the membrane
    • Correct Option: B  [ Breakdown of electron gradient ]

    Remark:

What is the net gain of ATP when each molecule of glucose is converted to two molecules of pyruvic acid?

[class-xi ]

  • Four
  • Six
  • Two
  • Eight
    • Correct Option: C  [ Two ]

    Remark:

What amount of energy is released from glucose during lactic acid fermentation?

[class-xi ]

  • Approximately 15%
  • More than 18%
  • About 10%
  • Less than 7%
    • Correct Option: D  [ Less than 7% ]

    Remark:

Production of Cucumber has increased manifold in recent years. Application of which of the following phytohormones has resulted in this increased yield as the hormone is known to produce female flowers in the plants :

[class-xi ]

  • ABA
  • Gibberellin
  • Ethylene
  • Cytokinin
    • Correct Option: C  [ Ethylene ]

    Remark:

Which one of the following plants does not show plasticity?

[class-xi ]

  • Cotton
  • Coriander
  • Buttercup
  • Maize
    • Correct Option: D  [ Maize ]

    Remark:
« First< Previous23456789101112Next >Last »

NEET Biology Previous Year Questions (PYQs)