Question types

Photosynthesis question types

181 questions across 7 question groups — pick any mix to generate a Biology paper with step-by-step answer keys.

181
Questions
7
Question groups
5
Question types
Sample Questions

Photosynthesis questions

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

Q 1MCQ1 Mark
Compensation point means the condition:
  • A
    When the entire food manufactured in photosynthesis remains unutilised
  • B
    When the pot is watered just to meet the full requirement of the plant
  • When rate of photosynthesis is equal to rate of respiration
  • D
    Where there is neither photosynthesis nor respiration.

Answer: C.

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Q 2MCQ1 Mark
The main difference between chlorophyll ' $a$ ' and ' $b$ ' is:
  • A
    Chlorophyll ‘a’ is a linear chain compound and ‘b’ is branched chain
  • B
    Chlorophyll ‘a’ has no Mg ion in centre of molecule
  • In chlorophyll 'a' there is $CH_3$ group whereas in 'b' it is CHO group 
  • D
    All of the above

Answer: C.

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Q 3MCQ1 Mark
A plant is kept in a dark cupboard for about $48$ hours before conducting any experiment on photosynthesis to:
  • A
    Remove starch from the plant
  • Ensure that starch is not translocated from the leaves
  • C
    Remove chlorophyll from the leaf of the plant
  • D
    Remove starch from the experimental leaf

Answer: B.

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Q 4MCQ1 Mark
$\ce{NADP}$ is expanded as
  • A
    Nicotinamide, adenosine dinucleotide phosphate
  • Nicotinamide, adenine dinucleotide phosphate
  • C
    Nicotinamide, adenine dinucleous phosphate
  • D
    Nicotinamide, adenosine dinudeous phosphate

Answer: B.

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Q 5MCQ1 Mark
Which would do maximum harm to a tree?
  • A
    Loss of half of its branches
  • B
    Loss of half of its flowers
  • Loss of all of its leaves
  • D
    Loss of a little bark

Answer: C.

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If you are planning an experiment to show the effect of light on photosynthesis :
(1) Will you select white light or green light? Justify your answer.
(2) Why would you select a destarched plant?
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A candidate in order to study the importance of certain factors in photosynthesis took a potted plant and kept it in the dark for over 24 hours. Then in the early hours of the morning, she covered one of the leaves with black paper in the center only. She placed the potted plant in the sunlight for a few hours, and then tested the leaf which was covered with black paper for starch.
  1. What aspect of photosynthesis was being investigated?
  2. Is there any control in this experiment? If so, state the same.
  3. Why was the plant kept in the dark before the experiment?
  4. Describe step by step how the candidate proceeded to test the leaf for the presence of starch.
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Column ‘II’ is a list of items related to ideas in Column ‘I’. Match the term in Column ‘II’ with the suitable idea given in Column ‘I’.
  Column I   Column II
(i) Grana (a) Decomposers
(ii) Autotrophs (b) Light reaction
(iii) By-products of photosynthesis (c) Animals
(iv) Photolysis (d) Oxygen
(v) Bacteria and fungi (e) Stimulated by light
(vi) Chloroplast (f) Power
(vii) Oxygen and water (g) Raw material
(viii) Sunlight (h) Machinery
(ix) $CO_2$​​​​​​​ and water (i) End products
(x) Glucose (sugar) (j) Workrooms
(xi) Cells in the leaf (k) By-products.
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Q 30TRUE / FALSE1 Mark
Complete the following food chain by writing the names of appropriate organisms in the blanks:

__________ → Mouse → _________ → Peaock

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Q 32TRUE / FALSE1 Mark
Complete the following food chain by writing the names of appropriate organisms in the blanks:

→ __________ → __________ → Hen → Man

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Q 33TRUE / FALSE1 Mark
Complete the following food chain by writing the names of appropriate organisms in the blanks:

Grass → __________ → Snake → __________

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Q 34TRUE / FALSE1 Mark
Complete the following sentence with appropriate word:

The conversion of the physical energy of light into chemical energy by the chloroplast is called ____________.

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