Control and Coordination Class 10 Science MCQ Quiz – Test Your Knowledge

Identify which of the following statements is incorrect about thyroxin?

The growth of tendrils in pea plants is due to

Which one of the following is not a tropic movement?

Precision in voluntary action is due to:

A gap between a pair of adjacent nerve cell over which nerve impulses passes is called _____.

Which plant hormone promotes the dormancy in seeds and buds, promotes the closing of stomata, and falling of leaves?

A deficiency of iodine will cause this disease in the body:

Select the mismatched pair:

Which of the following statements are true about the brain?

1. The main thinking part of the brain is the hindbrain.
2. Centers of hearing, smell, memory, sight, etc. are located in the forebrain.
3. Involuntary actions like salivation, vomiting, and blood pressure are controlled by the medulla in the hindbrain.
4. Cerebellum does not control the posture and balance of the body.

Which of the following statements is true?

1. Sudden action in response to something in the environment is called reflex action.
2. Sensory neurons carry signals from the spinal cord to muscles.
3. Motor neurons carry signals from receptors to the spinal cord.
4. The path through which signals are transmitted from a receptor to a muscle or a gland is called the reflex arc.

Which is the correct sequence of the components of a reflex arc?

Posture and balance of the body are controlled by _____.

Observe the figure given below.

In the figure, some parts are labeled as P, Q, R, S, and T. Given below are functions associated with these parts.

Which part of the brain is matched with incorrect function?

Assertion (A): The timing and amount of hormone released are regulated by feedback mechanisms.

Reason (R): Oversecretion and under-secretion of hormones are harmful to the body.