1. A command to the body is issued in the form of a A) nerve B) enzyme C) hormon

Question

1. A command to the body is issued in the form of a    A) nerve   B) enzyme C) hormone

2. Dehydration is detected by osmoreceptors in which gland

    A. pituitary     B. hypothalamus   C. pancreas

3. Which gland releases ADH? A. pituitary    B. hypothalamus   C. pancreas

4. Hormone molecules are transported to target cells through the

   A. Blood stream   B. Brain   C. water

5.When hormone molecules reach target cells ,this causes the kidney to reduce urine output which A. decreases water retention

                      B. does not change the amount of water in the body

                      C. increases water retention

Explanation / Answer

1) A hormone is defined as a substance which is secreted by endocrine glands in one part of the body which exerts its influence on distant parts. Hormones also act as a command to the body. So,vtge answer for this question is option C (hormone).

Nerves conduct electrical impulses from brain to effector organs and from receptors to brain.

Enzymes are substances which catalysed certain metabolic reactions.

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