Ncert solutions science class 10 Solutions for Chapter 4 control and coordination

Exercises in Chapter 4 control and coordination Grade 10

Control and Coordination Set 1

Control and Coordination Set 2

Control and Coordination Set 3

Control and Coordination Set 4

Questions in Control and Coordination Set 1

Assertion (A): The olfactory receptors receive the sensation of smell.

Reason (R): The sensory impulse for smell is received by the fore-brain.

Given below are images of the Mimosa plant before and after the stimulus:

Which movement does this represent?

Which of the following parts of the brain maintains the balance and posture of the body?

State TRUE or FALSE:

Transmission of nerve impulses between two neurons takes place through the synapse.

The image given below shows the venus flytrap:

Which of the following movements regulates the response of the closing of the venus fly trap once the insect sits on it?

Questions in Control and Coordination Set 2

The image given below shows the growth of roots towards gravity:

This growth of the root towards gravity is called …………………………

Which of the following plant hormone promotes growth in plants?

Which of the following are phytohormones?

Questions in Control and Coordination Set 3

The chemical coordination in plants takes place with the help of ……………………………………….

(phytohormones/receptors)

Which of the following responses are shown by the body on the release of adrenaline?

Questions in Control and Coordination Set 4

Which of the following is a plant hormone?

The gap between two neurons is called a ………………………………

The ………………………… neurons control the muscle movements.

The nervous system is responsible for which of the following activities?

Directional growth in plants in response to light is called ……………………………

The non-growth movement in response to an environmental stimulus in plants is called …………………… movement.

(tropic/nastic)

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