1.

    Which of the following metabolites is transported from mesophyll cells to bundle sheath cells in C4 plants during active photosynthesis?

    A

    3-Phosphoglycerate (3-PGA)

    B

    Glyceraldehyde 3-phosphate (G3P)

    C

    Pyruvate

    D

    Malate or aspartate

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Photorespiration And C4-Cycle
    🎓 Ncert Level:Remembering
    🎯Difficulty :Hard
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :C4 pathway, Metabolite transport, Malate, Aspartate

    Related Questions

    1.

    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

    2.

    Which organelle is involved in the salvage pathway of photorespiration?

    A

    Chloroplast

    B

    Mitochondrion

    C

    Peroxisome

    D

    Golgi apparatus

    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, peroxisome, mitochondrion, chloroplast

    3.

    C4{C_4} Cycle was first discovered in?

    A

    Saccharam

    B

    Sorghum

    C

    Maize

    D

    Finger millet

    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 :Plant Physiology, C4 Photosynthesis

    4.

    The process which makes major difference between C3{C_3} and C4{C_4} plants is

    A

    respiration

    B

    glycolysis

    C

    Calvin cycle

    D

    photorespiration

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Photorespiration And C4-Cycle
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :C3 plants, C4 plants, photorespiration, photosynthesis, carbon fixation

    5.

    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

    6.

    A plant is exposed to an environment with high CO2 and low O2 concentrations. Which process would be MOST directly and significantly inhibited under these conditions?

    A

    Calvin cycle

    B

    Photorespiration

    C

    Electron transport chain

    D

    C4 cycle

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Photorespiration And C4-Cycle
    🎓 Ncert Level:Application
    🎯Difficulty :Hard
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Photorespiration, Rubisco, CO2 fixation, Oxygenase activity

    7.

    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

    8.

    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

    9.

    Photorespiration results in the loss of which molecule?

    A

    CO2

    B

    O2

    C

    H2O

    D

    ATP

    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 :photorespiration, carbon dioxide

    10.

    A researcher is studying a C4 plant under controlled conditions. They suddenly increase the oxygen concentration in the environment while maintaining constant light and CO2 levels. Which of the following is the MOST likely immediate consequence?

    A

    A significant decrease in the rate of photosynthesis

    B

    A slight increase in photorespiration

    C

    A significant increase in the rate of photosynthesis

    D

    No change in the rate of photosynthesis or photorespiration

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Photorespiration And C4-Cycle
    🎓 Ncert Level:Application
    🎯Difficulty :Hard
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Photorespiration, C4 Cycle, Rubisco, CO2 fixation

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