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STD 11 - 13. Plant growth and development BIOLOGY - STD 11 - 13. Plant growth and development

Gujarat Board (GSEB) - STD 11 Science - BIOLOGY (GSEB - English Medium). 481 questions in this chapter.

Question types

STD 11 - 13. Plant growth and development question types

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

481
Questions
1
Question groups
5
Question types
Sample Questions

STD 11 - 13. Plant growth and development questions

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

Q 1M.C.Q (1 Marks)1 Mark
Formation of interfascicular cambium from fully developed parenchyma cells is an example for
  • A
    Redifferentiation
  • ✓
    Dedifferentiation
  • C
    Maturation
  • D
    Differentiation

Answer: B.

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Q 2M.C.Q (1 Marks)1 Mark
Auxin is used by gardeners to prepare weed-free lawns. But no damage is caused to grass as auxin
  • A
    promotes abscission of mature leaves only.
  • B
    does not affect mature monocotyledonous plants.
  • C
    can help in cell division in grasses, to produce growth.
  • D
    promotes apical dominance.
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Q 3M.C.Q (1 Marks)1 Mark
Spraying sugarcane crop with which of the following plant growth regulators, increases the length of stem, thus, increasing the yield?
  • ✓
    Gibberellin
  • B
    Cytokinin
  • C
    Abscisic acid
  • D
    Auxin

Answer: A.

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Q 4M.C.Q (1 Marks)1 Mark
In tissue culture experiments, leaf mesophyll cells are put in a culture medium to form callus. This phenomenon may be called as
  • A
    Senescence
  • B
    Differentiation
  • ✓
    Dedifferentiation
  • D
    Development

Answer: C.

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Q 5M.C.Q (1 Marks)1 Mark
Spraying of which of the following phytohormone on juvenile conifers helps hastening the maturity period, that leads early seed production?
  • A
    Abscisic Acid
  • B
    Indole $-3-$ butyric Acid
  • ✓
    Gibberellic Acid
  • D
    Zeatin

Answer: C.

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