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Transpiration Biology - Transpiration

ICSE - STD 10 - Biology (ICSE - English Medium). 58 questions in this chapter.

Question types

Transpiration question types

58 questions across 5 question groups — pick any mix to generate a Biology paper with step-by-step answer keys.

58
Questions
5
Question groups
5
Question types
Sample Questions

Transpiration 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
Assertion (A): Lenticels play a crucial role in the aeration of plant tissues.
Reason (R): Guttation is a mechanism for plants to maintain turgor pressure in their cells.
  • ✓
    A is True and R is False.
  • B
    A is False and R is True.
  • C
    Both A and R are True.
  • D
    Both A and R are False.

Answer: A.

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Q 2MCQ1 Mark
Which of the following statements is true?
  • ✓
    Higher the temperature, higher is the rate of transpiration
  • B
    Higher the temperature, lower is the rate of transpiration
  • C
    Higher the temperature, slower is the evaporation of water molecules
  • D
    All the above

Answer: A.

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Q 3MCQ1 Mark
When guard cells are turgid, the stomata must be
  • A
    closed
  • B
    neither open nor closed
  • ✓
    open
  • D
    dead

Answer: C.

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Q 4MCQ1 Mark
Evaporation is different from transpiration as the former
  • A
    occurs from aerial parts of the leaf.
  • B
    is a slow process.
  • ✓
    is the loss of water from free surface.
  • D
    involves green plants.

Answer: C.

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Q 5MCQ1 Mark
Assertion (A): Guttation is the process by which plants release excess water in the form of droplets from the tips of their leaves.
Reason (R): Guttation occurs when the rate of transpiration is lower than the rate of water absorption by the roots.
  • A
    A is True and R is False.
  • B
    A is False and R is True.
  • ✓
    Both A and R are True.
  • D
    Both A and R are False.

Answer: C.

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Q 20[3 marks Question Answer]3 Marks
Given below is the diagram showing lenticels. Read the information and fill in the blanks:

Image
Lenticels are specialised structures found in the ____________ (i) ____________ of woody ____________ (ii) ____________ and roots of certain plants. These small, raised patches serve as pores, allow direct ____________ (iii) ____________ exchange between the internal tissues and the atmosphere. Unlike the impermeable bark, lenticels facilitate the movement oxygen, ____________ (iv) ____________ , and water vapour. They are essential for the survival and growth of ____________ (v) ____________ plants.
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