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CBSE 11th Standard Biology Subject Neural Control and Coordination HOT Questions 1 Marks Questions 2021

Published on: 29/05/2021

QB365 Provides the HOT Question Papers for Class 11 Biology, and also provide the detail solution for each and every HOT Questions. HOT Questions will help to get more idea about question pattern in every exams and also will help to get more marks in Exams

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Std: 11th Standard CBSE - Biology

chapter: - HOT Questions

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Questions:

Generic 2

5 x 2 = 10

The autonomic nervous system is considered as involuntary nervous system. Why?

Which is the largest and most complex of all the parts of the human brain?

How does the somatic nervous system work?

How do the efferent fibres work?

Which is the bluish (pigmented) layer present beneath the sclera?

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Answers Key:

Generic 2

5 x 2 = 10

This system transmits impulses from the CNS to the involuntary organs and smooth muscles of the body. So, it is also called involuntary nervous system.

Forebrain, which mainly includes cerebrum.

The somatic nervous system controls the movements of the body by acting on the skeletal muscles (i.e., relays voluntary impulses from the CNS to skeletal muscles).

The efferent nerve fibres transmit motor impulses from CNS to the concerned tissues/organs and form the motor or efferent pathway

Choroid: It is a pigmented layer (bluish) present beneath the sclera. It contains numerous blood vessels and nourishes the sclera. The choroid layer is thin over the posterior two-thirds of the eyeball, but it becomes, thick in the anterior part to form the ciliary muscles.