Question types

STD 11 - 11. photosynthesis in higher plants question types

546 questions across 1 question group — pick any mix to generate a BIOLOGY paper with step-by-step answer keys.

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Sample Questions

STD 11 - 11. photosynthesis in higher plants questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Given below are two statements:

Statement $I$: In $\mathrm{C}_3$ plants, some $\mathrm{O}_2$ binds to $\mathrm{RuBisCO}$, hence $\mathrm{CO}_2$ fixation is decreased.

Statement $II$: In $\mathrm{C}_4$ plants, mesophyll cells show very little photorespiration while bundle sheath cells do not show photorespiration.

In the light of the above statements, choose the correct answer from the options given below:

  • A
    Both Statement $I$ and Statement $II$ are false
  • Statement $I$ is true but Statement $II$ is false
  • C
    Statement $I$ is false but Statement $II$ is true
  • D
    Both Statement $I$ and Statement $II$ are true

Answer: B.

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How many molecules of $ATP$ and $NADPH$ are required for every molecule of $\mathrm{CO}_2$ fixed in the Calvin cycle?
  • A
    $2$ molecules of $ATP$ and $2$ molecules of $NADPH$
  • B
    $3$ molecules of $ATP$ and $3$ molecules of $NADPH$
  • $3$ molecules of $ATP$ and $2$ molecules of $NADPH$
  • D
    $2$ molecules of $ATP$ and $3$ molecules of $NADPH$

Answer: C.

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Which of the following are required for the dark reaction of photosynthesis?

$A$. Light  $B$. Chlorophyll  $C$. $\mathrm{CO}_2$  $D$. $ATP$   $E$. $NADPH$

Choose the correct answer from the options given below:

  • A
    $B, C$ and $D$ only
  • $C, D$ and $E$ only
  • C
    $D$ and E only
  • D
    $A$, $B$ and $C$ only

Answer: B.

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How many $ATP$ and $NADPH _2$ are required for the synthesis of one molecule of Glucose during Calvin cycle?
  • A
    $18\,ATP$ and $16\,NADPH _2$
  • B
    $12\,ATP$ and $12\,NADPH _2$
  • $18\,ATP$ and $12\,NADPH _2$
  • D
    $12\,ATP$ and $16\,NADPH _2$

Answer: C.

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Which of the following combinations is required for chemiosmosis?
  • A
    Proton pump, electron gradient, NADP synthase
  • Membrane, proton pump, proton gradient, ATP synthase
  • C
    Membrane, proton pump, proton gradient, NADP synthase
  • D
    Proton pump, electron gradient, ATP synthase

Answer: B.

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