Fsc Part 2 Online Preparation for Biology Chapter 17 (Coordination and Control)

Online Short Questions For Chapter 3 "12th Class Biology Chapter 17 Short Questions Preparation "

Try The Short Questions For 12th Class Biology Chapter 17 Short Questions Preparation

  • Total Questions10

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Biology - 12th Class Biology Chapter 17 Short Questions Preparation

Question # 1

Write down the role of hypothalamus in chemical coordination.

  • Ans 1: It is a part of fore brain.It is here that many of the sensory stimuli of nervous system are converted into hormonal responses.It is believed that oxytocin and ADH are produced in hypothalamus.
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Prepare Complete Set Wise Questions For Chapter 3 "12th Class Biology Chapter 17 Short Questions Preparation "

12th Class Biology Chapter 17 Short Questions Preparation - Set 1

Question # 1

Write down the role of hypothalamus in chemical coordination.

  • Ans 1: It is a part of fore brain.It is here that many of the sensory stimuli of nervous system are converted into hormonal responses.It is believed that oxytocin and ADH are produced in hypothalamus.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 2

Question # 1

What are calluses?

  • Ans 1: These are the mass of undifferentiated cells produced in response to injury on plant body by mitotic cell division.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 3

Question # 1

What is chlorosis? How it is caused/

  • Ans 1: Yellowing of plant leaves due to deficiency of chlorophyll is called chlorosis it is caused due to the deficiency of magnesium.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 4

Question # 1

Write four important roles of ethylene.

  • Ans 1: Ethene inhibits root growth.

  • Ans 2: Break dormancy of buds
  • Ans 3: promote fruit ripening.
  • Ans 4: Promote flowering in pineapple.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 5

Question # 1

What is meant by division of labour ?

  • Ans 1: Division of labour means a specific type of cells can perform a specific type of function.Like muscle cells contract and relax,glandular cells produce secretions, phloem can transport food.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 6

Question # 1

What is meant by division of labour ?

  • Ans 1: Division of labour means a specific type of cells can perform a specific type of function.Like muscle cells contract and relax,glandular cells produce secretions, phloem can transport food.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 7

Question # 1

Mention the relative abundance and distribution of receptors in human skin.

  • Ans 1: The relative abundance of various types of receptors differs greatly for example pain receptors are nearly 27 times more abundant than cold receptors.The cold receptors are nearly 10 times more abundant than heat or temperature receptors.
  • Ans 2: The receptors are not distributed evenly over the entire surface of the body.For example touch receptors are much more numerous in the finger than in the skin of the back.
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12th Class Biology Chapter 17 Short Questions

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