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

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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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

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 2

Question # 1

Define blastocoel and neurocoel.

  • Ans 1: At blastula stage there is a segmentation cavity formed called blastocoel which is formed by the separation of cell.
  • Ans 2: With the formation of neural tube,there is the formation of CNS and a cavity enclosed is known as neurocoel.
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12th Class Biology Chapter 19 Short Questions Preparation - Set 3

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.
Submit

12th Class Biology Chapter 19 Short Questions Preparation - Set 4

Question # 1

Differentiate between neurula and neurocoel.

  • Ans 1: Neurula: In the embryo of 24 hrs the neural folds are clearly visible,at this stage embryo is called neurula.
  • Ans 2: Neurocoel: In the chick development with the formation of neural tube,there is formation of central nervous system and the cavity enclosed is called neurocoel.
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12th Class Biology Chapter 19 Short Questions

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