1.

    The primary benefit of the C4 pathway is:

    A

    Minimizing photorespiration

    B

    Increasing water use efficiency

    C

    Enhancing light absorption

    D

    Reducing the need for RuBisCO

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Photorespiration And C4-Cycle
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :0.5 mins
    🔄Ncert Concepts :C4 pathway, photorespiration, photosynthesis

    Related Questions

    1.

    When CO2C{O_2} is added to PEP, the first stable product synthesized is?

    A

    Pyruvate

    B

    G3P

    C

    PGA

    D

    Oxaloacetic acid

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Photorespiration And C4-Cycle
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Carbon fixation, C4 pathway, PEP carboxylase

    2.

    The enzyme that is not found in a C3{C_3} plant is?

    A

    RUBP Carboxylase

    B

    PEP Carboxylases

    C

    NADP reductase

    D

    ATP synthetase

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Photorespiration And C4-Cycle
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Photosynthesis, C3 plants, Enzymes

    3.

    The primary distinction between C3C_3 and C4C_4 plants lies in their:

    A

    initial product of CO2CO_2 fixation

    B

    ability to grow in hot and dry climates

    C

    utilization of light energy

    D

    requirement for water

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Photorespiration And C4-Cycle
    PYQ YEAR: 2016
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Photosynthesis, C3 and C4 plants

    4.

    The first stable product of the C4 pathway is:

    A

    Oxaloacetate (OAA)

    B

    Pyruvate

    C

    3-phosphoglycerate (3-PGA)

    D

    Ribulose-1,5-bisphosphate (RuBP)

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Photorespiration And C4-Cycle
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :0.5 mins
    🔄Ncert Concepts :c4 pathway, pep carboxylase, oxaloacetate

    5.

    In C4 plants, the initial carboxylation reaction occurs in:

    A

    Mesophyll cells

    B

    Bundle sheath cells

    C

    Both mesophyll and bundle sheath cells

    D

    Neither mesophyll nor bundle sheath cells

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Photorespiration And C4-Cycle
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :0.5 mins
    🔄Ncert Concepts :C4 cycle, photosynthesis, carbon fixation

    6.

    Photorespiration is initiated by the enzyme RuBisCO's ability to also bind:

    A

    O2

    B

    CO2

    C

    N2

    D

    H2O

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Photorespiration And C4-Cycle
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :0.5 mins
    🔄Ncert Concepts :photorespiration, RuBisCO, photosynthesis

    7.

    In leaves of C4{C_4} plants, malic acid synthesis during CO2C{O_2} fixation occurs in?

    A

    epidermal cells

    B

    Mesophyll cells

    C

    bundle sheath cells

    D

    Guard cells

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Photorespiration And C4-Cycle
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :C4 photosynthesis, malic acid synthesis, plant cell types

    8.

    Kranz anatomy is typical of?

    A

    C4{C_4} plants

    B

    C3{C_3} plants

    C

    C2{C_2} plants

    D

    Photorespiration

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Photorespiration And C4-Cycle
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Kranz anatomy, C4 plants, C3 plants, photorespiration

    9.

    Which of the following is NOT a characteristic of C4 plants?

    A

    High CO2 compensation point

    B

    Kranz anatomy

    C

    Presence of PEP carboxylase

    D

    Dimorphic chloroplasts

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Photorespiration And C4-Cycle
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :0.5 mins
    🔄Ncert Concepts :C4 plants, Kranz anatomy, CO2 compensation point

    10.

    Oxygenic photosynthesis occurs in?

    A

    Oscillatoria

    B

    Rhodospirillum

    C

    Chlorobium

    D

    Chromatium

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Photorespiration And C4-Cycle
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Photosynthesis, Oxygenic Photosynthesis, Cyanobacteria, Bacteria

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