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

Match the following

Which plant hormone promotes cell division, promotes the opening of stomata, and also fruit growth, helps in breaking the dormancy of seeds and buds, and delays the aging in leaves?

Precision in voluntary action is due to:

The growth of tendrils in pea plants is due to

Match the following

The changes associated with puberty are because of the secretions secreted by:

Which is the largest part of the brain?

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.

Match the following

Person X suffers from a condition that affects the normal functioning of the pituitary gland.

Which of the following is most likely a direct effect of person X’s condition?

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.

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

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

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

Identify which of the following statements is incorrect about thyroxin?