Photosynthesis in Higher Plants

Multiple Choice Questions

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In CAM plants, CO2 acceptor is

  • RuBP

  • PEP

  • OAA

  • PGA

B.

PEP

In CAM or Crassulacean Acid Metabolism plants, spatial separation of initial PEP carboxylase fixation and final Rubisco fixation of CO2, occur in the same cell, but at different times i.e. night and day, eg, Opuntia, pineapple, Vanilla.

PEP (Phosphoenol Pyruvic Acid) is the first acceptor of CO2 in CAM plants like C4 plants.

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    Photosynthetic bacteria have :

    • pigment system I (only one pigment system)

    • pigment system II

    • both (a) and (b)

    • some other type

    Answer

    The specific character of C4  plants is

    • bulliform cells

    • Kranz anatomy

    • parallel venation

    • isobilateral leaf

    Answer

    For synthesis of one hexose sugar, how many times Calvin cycle is turned ?

    • 12

    • 2

    • 6

    • 3

    Answer

    Most effective wavelength of light photosynthesis is :

    • green

    • violet

    • red

    • yellow

    Answer
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    Law of limiting factor was given by

    • Leibig

    • Blackman

    • Calvin

    • Arnon

    Answer

    The number of chlorophyll molecules in a quantasome is

    • 50- 100

    • 200- 250

    • 300- 400

    • 500- 600

    Answer

    Active K+ exchange mechanism for opening and closing of stomata was given by

    • Darwin

    • Levit

    • Scarth

    • Khorana

    Answer

    Which one of the following contain agranal chloroplasts?

    • C3 plants

    • Succulants

    • C4 plants

    • Hydrophytes

    Answer
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    C4 plants, synthesis of sugars/final CO2 fixation occurs in:

    • palisade cells

    • spongy cells

    • undifferentiated mesophyll cells

    • bundle sheath cells

    Answer
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