NCERT Solutions for Class 11 Biology Chapter 21 - Neural Control and Coordination

 

NCERT Solutions for Class 11 Biology Chapter 21 - Neural Control and Coordination: As you know, the functions of the organs/organ systems in our body must be coordinated to maintain homeostasis. Coordination is the process through which two or more organs interact and complement the functions of one another. For example, when we do physical exercises, the energy demand is increased for maintaining an increased muscular activity. The supply of oxygen is also increased. The increased supply of oxygen necessitates an increase in the rate of respiration, heartbeat and increased blood flow via blood vessels. When physical exercise is stopped, the activities of nerves, lungs, heart, and kidney gradually return to their normal conditions. Thus, the functions of muscles, lungs, heart, blood vessels, kidney, and other organs are coordinated while performing physical exercises. In our body, the neural system and the endocrine system jointly coordinate and integrate all the activities of the organs so that they function in a synchronized fashion.

Here are the important topics of NCERT Class 11 Biology Chapter 21 - Neural Control and Coordination mentioned below:

21.1 Neural System

21.2 Human Neural System

21.3 Neuron as Structural and Functional Unit of Neural System

    21.3.1 Generation and Conduction of Nerve Impulse

    21.3.2 Transmission of Impulses

21.4 Central Neural System

    21.4.1 Forebrain

    21.4.2 Midbrain

    21.4.3 Hindbrain

21.5 Reflex Action and Reflex Arc

21.6 Sensory Reception and Processing

    21.6.1 Eye

        21.6.1.1 Parts of an eye

        21.6.1.2 Mechanism of Vision

    21.6.2 The Ear

        20.6.2.1 Mechanism of Hearing

The human neural system consists of two parts:

  1. central neural system (CNS)
  2. the peripheral neural system.

The CNS consists of the brain and spinal cord. The brain can be divided into three major parts:

  1. forebrain,
  2. midbrain
  3. hindbrain

The forebrain consists of the cerebrum, thalamus, and hypothalamus. The cerebrum is longitudinally divided into two halves that are connected by the corpus callosum. A very important part of the forebrain called the hypothalamus controls the body temperature, eating and drinking.

After going through Class 11 Biology Chapter 21 - Neural Control and Coordination, you must be able to answer the following questions:

  • Q1. Differentiate between:
    • (a) Myelinated and non-myelinated axons
    • (b) Dendrites and axons
    • (c) Rods and cones
    • (d) Thalamus and Hypothalamus
    • (e) Cerebrum and Cerebellum
  • Q2. Answer the following:
    • (a) Which part of the ear determines the pitch of a sound?
    • (b) Which part of the human brain is the most developed?
    • (c) Which part of our central neural system acts as a master clock?

If you have any problem in getting NCERT Solution of these questions then, don't worry Solutions for NCERT Class 11 Biology Chapter 21 - Neural Control and Coordination will help you in getting those answers by understanding the concept behind it.

NCERT Solutions for Class 11 Biology Chapter 21 Neural Control and Coordination - Solved Exercise Questions

Also, try to solve all the question mentioned in the exercise of this chapter by yourself, in case you have any issue in getting answers then, NCERT Solutions for Class 11 Biology Chapter 21 - Neural Control and Coordination is there for you. It will also help you in the preparation of other competitive exams like NEET and AIIMS along with your school exams.

NCERT Solutions for class 11 Biology

Chapter-1

The Living World

Chapter-2

Biological Classification

Chapter-3

Plant Kingdom

Chapter-4

Animal Kingdom

Chapter-5

Morphology of Flowering Plants

Chapter-6

Anatomy of Flowering Plants

Chapter-7

Structural Organisation in Animals

Chapter-8

Cell: The Unit of Life

Chapter-9

Biomolecules

Chapter-10

Cell Cycle and Cell Division

Chapter-11

Transport in Plants

Chapter-12

Mineral Nutrition

Chapter-13

Photosynthesis in Higher Plants

Chapter-14

Respiration in Plants

Chapter-15

Plant Growth and Development

Chapter-16

Digestion and Absorption

Chapter-17

Breathing and Exchange of Gases

Chapter-18

Body Fluids and Circulation

Chapter-19

Excretory Products and their Elimination

Chapter-20

Locomotion and Movement

Chapter-22

Chemical Coordination and Integration

NCERT Solutions for Class 11- Subject wise

NCERT solutions for Class 11 Biology

NCERT solutions for Class 11 Maths

NCERT solutions for Class 11 Chemistry

NCERT solutions for Class 11 Physics

 

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