How many of the following are peptide hormones?

Gastrin, Secretin, Cholecystokinin, Gastric inhibitory peptide, ANF, Erythropoietin

1. 3

2. 4

3. 5

4. 6

Which of the following stimulates the secretion of HCl and pepsinogen?

1. Gastrin

2. Secretin

3. Cholecystokinin

4. Gastric inhibitory peptide

Which of the following inhibits gastric secretion?

1. Gastrin

2. Secretin

3. Cholecystokinin

4. Gastric inhibitory peptide

Which of the following acts on the endocrine part of the pancreas?

1. Gastrin

2. Secretin

3. Cholecystokinin

4. None of these

Which of the following is an incorrect statement

1. Hormones bind to specific proteins located in the target tissues only.

2. Receptors for hormones can only be present on the cell membrane

3. Each receptor is specific to one hormone only

4. Nuclear receptors are intracellular receptors

The binding of a hormone to its receptor leads to

1. formation of the hormone-receptor complex

2. leads to biochemical changes in the target tissue

3. affects target tissue metabolism

4. All of these

How many of the following hormones don’t enter the target cell?

Cortisol, Iodothyronine, Testosterone, Estradiol, FSH, Insulin, Glucagon

1. 4

2. 7

3. 3

4. 2

Besides cAMP, which one of the following molecules acts as a “secondary messenger” in the biological system?

1. Ca⁺²

2. ATP

3. cDNA

4. CGTP

Which of the following is true about neural system

The system which coordinate and regulate the physiological functions in the body is