1.

    Which of the following combinations of factors would MOST SIGNIFICANTLY limit the rate of photosynthesis in a typical C3 plant?

    A

    Low light intensity, high CO2 concentration, and optimal temperature

    B

    High light intensity, low O2 concentration, and high humidity

    C

    High temperature, low CO2 concentration, and water stress

    D

    Low temperature, high CO2 concentration, and waterlogged soil

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Factors Affect Photosynthesis
    🎓 Ncert Level:Application
    🎯Difficulty :Hard
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Photosynthesis, C3 Plants, Limiting Factors, Temperature, CO2, Water Stress

    Related Questions

    1.

    Very strong light has a direct inhibiting effect on photosynthesis, which is known as

    A

    Solarization

    B

    Etiolaration

    C

    Chlorosis

    D

    Defoliation

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Factors Affect Photosynthesis
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :photosynthesis, plant physiology, light effects

    2.

    The law of limiting factors was proposed with particular reference to photosynthesis. Identify the scientist, who proposed this law?

    A

    Calvin

    B

    Weismann

    C

    Emerson

    D

    Blackman

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Factors Affect Photosynthesis
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Law of limiting factors, Photosynthesis, History of Biology

    3.

    Under normal condition, which one of the following is a major limiting factor?

    A

    Light

    B

    CO2C{O_2}

    C

    Temperature

    D

    Chlorophyll

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Factors Affect Photosynthesis
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Photosynthesis, Limiting Factors

    4.

    Warburg effect is the

    A

    Inhibition of C4−{C_4} - cycle by O2{O_2}

    B

    Inhibition of C2−{C_2} - cycle by O2{O_2}

    C

    Inhibition of C3−{C_3} - cycle by O2{O_2}

    D

    Inhibition of C3−{C_3} - cycle by CO2C{O_2}

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Factors Affect Photosynthesis
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Warburg effect, Photosynthesis, C3 cycle, Oxygen inhibition

    5.

    Which factor is not limiting in normal condition for photosynthesis?

    A

    Air

    B

    Carbon dioxide

    C

    Water

    D

    Chlorophyll

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Factors Affect Photosynthesis
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :photosynthesis, limiting factors

    6.

    Solarisation is

    A

    Formation of chlorophyll

    B

    Destruction of chlorophyll

    C

    Utilization of sunlight

    D

    Effects of solar light

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Factors Affect Photosynthesis
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Solarisation, Chlorophyll

    7.

    Water stress makes plant leaves …A… thus, …B… the surface area of leaves and their metabolic activity as well Here A and B refer to

    A

    A-wilt, B-increases

    B

    A-wilt, B-decreases

    C

    A-fall, B-decreases

    D

    A-fall, B-increases

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Factors Affect Photosynthesis
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :plant physiology, water stress, leaf morphology, metabolic activity

    8.

    The major limiting factor for photosynthesis is

    A

    O2{O_2}

    B

    Light

    C

    CO2C{O_2}

    D

    H2O{H_2}O

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Factors Affect Photosynthesis
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :photosynthesis, limiting factors

    9.

    Compensation point refers to

    A

    Rate of photosynthesis = Rate of respiration

    B

    Rate of photosynthesis = Rate of H2O{H_2}O splitting

    C

    Rate of photosynthesis = PGA formation

    D

    Rate of photosynthesis = RuBP formation

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Factors Affect Photosynthesis
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Photosynthesis, Respiration, Compensation Point

    10.

    A plant is exposed to green light only. Which of the following is the most likely outcome regarding photosynthesis?

    A

    The rate of photosynthesis will be significantly reduced.

    B

    The rate of photosynthesis will be enhanced.

    C

    The rate of photosynthesis will proceed at a normal rate.

    D

    The plant will switch to utilizing green light efficiently.

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Factors Affect Photosynthesis
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Factors Affecting Photosynthesis, Light Absorption, Chlorophyll

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