Fsc part 2 online preparation for biology chapter 19 (Growth and Development)

Online Short Questions For Chapter 5 "12th Class Biology Chapter 19 Short Questions Preparation "

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Biology - 12th Class Biology Chapter 19 Short Questions Preparation

Question # 1

Define teratology and teratogens.

  • Ans 1: Study of abnormal development is called teratology. Factors causing abnormal development are called teratogens.
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Prepare Complete Set Wise Questions For Chapter 5 "12th Class Biology Chapter 19 Short Questions Preparation "

12th Class Biology Chapter 19 Short Questions Preparation - Set 1

Question # 1

Define teratology and teratogens.

  • Ans 1: Study of abnormal development is called teratology. Factors causing abnormal development are called teratogens.
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12th Class Biology Chapter 19 Short Questions Preparation - Set 2

Question # 1

What is difference between inhibitory effect and compensatory effect?

  • Ans 1: Inhibitory effect: Auxin diffuses from apical buds to the lateral buds or branches which inhibit the growth of lateral shoots is called inhibitory.
    Compensatory effect: When the apex is cut and diffusion of auxin is stopped to the lateral buds it releases the lateral buds from apical dominance is called compensatory effect.
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12th Class Biology Chapter 19 Short Questions Preparation - Set 3

Question # 1

Differentiate between primary growth and secondary growth in plant.

  • Ans 1: Primary growth: occur due to the activity of apical meristem which results increase in length or height of plant.
  • Ans 2: Secondary growth: Of plants occur due to activity of cambium and it results increase in girth of plant.
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12th Class Biology Chapter 19 Short Questions Preparation - Set 4

Question # 1

Write practical application of apical dominance.

  • Ans 1: It can be used to produce smooth woody stem.
    It is also used to increase the storage life of potato from 1 to 3 years.
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19th Chapter

12th Class Biology Chapter 19 Short Questions

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