Q10 of 39 Page 123

A hormone responsible for normal sleep-wake cycle is

Melatonin appears to contribute to the setting of the body’s biological clock. More melatonin is produced in darkness as compare to light thus promoting sleep. Melatonin secretion increases up to 10 times during the night and then the level falls during the day. That’s how melatonin maintains the normal sleep-wake cycle.

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8

Corpus luteum secretes a hormone called

 9

Cortisol is secreted by

 11

Hormones are called chemical signals that stimulate specific target tissues. Their action depends on the presence of receptors on the respective target tissues. Which of the following is the correct location of the receptors in the case of protein hormones?

 12

Choose the correct option among the following options

Options: