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

Precision in voluntary action is due to:

Which one of the following is not a tropic movement?

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

Which of the following statements about the transmission of nerve impulses is incorrect?

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.

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?

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?

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.

The electrical impulse travels in a neuron from

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?

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

Match the following

What can be inferred if swollen necks are observed in people living in the hills?

Select the mismatched pair: