1.

    Which of the following factors does NOT directly affect the rate of photosynthesis?

    A

    Light intensity

    B

    Carbon dioxide concentration

    C

    Temperature

    D

    Soil pH

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Factors Affect Photosynthesis
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :0.5 mins
    🔄Ncert Concepts :Photosynthesis, Factors affecting photosynthesis, Light intensity, Carbon dioxide concentration, Temperature

    Related Questions

    1.

    Which of the following is NOT a limiting factor for photosynthesis?

    A

    Light intensity

    B

    Carbon dioxide concentration

    C

    Temperature

    D

    Oxygen concentration

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Factors Affect Photosynthesis
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :0.5 mins
    🔄Ncert Concepts :Photosynthesis, Limiting factors

    2.

    How does temperature affect the rate of photosynthesis?

    A

    It influences enzyme activity

    B

    It changes the color of chlorophyll

    C

    It directly provides energy for the process

    D

    It has no effect

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Factors Affect Photosynthesis
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :0.5 mins
    🔄Ncert Concepts :Photosynthesis, Temperature, Enzymes

    3.

    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

    4.

    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

    5.

    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

    6.

    Which of the following statements is not correct regarding Blackman’s law of limiting factors ?

    A

    The factor closest to its optimum value is the limiting factor.

    B

    If a limiting factor is increased, the rate of the process increases until another factor becomes limiting.

    C

    When a biological process is affected by several factors, its rate is determined by the factor which is present in the minimum amount.

    D

    It is applicable to both physical and biological processes.

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Factors Affect Photosynthesis
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Blackman's law of limiting factors, photosynthesis, limiting factors

    7.

    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

    8.

    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

    9.

    Which of the following factors does NOT directly influence the rate of photorespiration?

    A

    Light intensity

    B

    Oxygen concentration

    C

    Temperature

    D

    Carbon dioxide concentration

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

    10.

    I. Temperature

    II. CO2C{O_2} concentration

    III. Chlorophyll arrangement

    IV. Water

    Among the given factors, identify the external factors that affects the rate of photosynthesis and correct option accordingly

    A

    I, II and IV

    B

    I, II and III

    C

    II, III and IV

    D

    I, III and IV

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Factors Affect Photosynthesis
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Photosynthesis, External factors, Internal factors

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