Chemical Coordination and Integration Chapter-Wise Test 14

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which hormone plays a key role in the contraction of smooth muscles, including those of the uterus?

Prolactin
Oxytocin
Thyroxine
Vasopressin
2

Oxytocin plays a key role in the contraction of smooth muscles, especially during childbirth and milk ejection.

Which hormone inhibits gastric secretion and motility?

Gastrin
Secretin
Gastric inhibitory peptide (GIP)
Cholecystokinin (CCK)
3

GIP inhibits gastric secretion and motility to slow down the digestive process.

Which of the following is an incorrect statement regarding vasopressin (ADH)?

ADH helps in water reabsorption by the kidneys.
ADH is secreted by the posterior pituitary.
ADH deficiency leads to diabetes mellitus.
ADH helps maintain blood pressure.
3

ADH deficiency leads to diabetes insipidus, not diabetes mellitus.

Which gland is functionally active in childhood but degenerates in old age?

Thymus
Pineal gland
Thyroid gland
Parathyroid gland
1

The thymus plays a major role in immune function during childhood but degenerates as a person ages.

Which hormone is responsible for calcium absorption in the intestines?

Thyroxine
Parathyroid hormone (PTH)
Insulin
Cortisol
2

PTH, secreted by the parathyroid glands, increases blood calcium levels by promoting calcium absorption in the intestines.

Which hormone stimulates the production of hydrochloric acid in the stomach?

Gastrin
Secretin
Cholecystokinin (CCK)
Gastric inhibitory peptide (GIP)
1

Gastrin, secreted by the stomach, stimulates the release of hydrochloric acid and pepsinogen.

Which hormone is called the "hunger hormone" because it stimulates appetite?

Leptin
Ghrelin
Insulin
Glucagon
2

Ghrelin, secreted by the stomach, stimulates hunger and increases food intake.

Which hormone secreted by the stomach stimulates hunger?

Leptin
Ghrelin
Glucagon
Insulin
2

Ghrelin, secreted by the stomach, stimulates hunger and promotes food intake.

Which of the following hormones plays a role in regulating biological rhythms?

Melatonin
Thyroxine
Insulin
Aldosterone
1

Melatonin, secreted by the pineal gland, regulates sleep-wake cycles and biological rhythms.

Which disorder is caused by the hypersecretion of thyroid hormones?

Goiter
Cretinism
Myxedema
Graves’ disease
4

Graves’ disease is caused by the excessive secretion of thyroid hormones, leading to increased metabolism and weight loss.

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