| Assertion (A): | Secretin stimulates release of pancreatic enzymes, water and bicarbonate ions from liver and pancreas | 
| Reason (R): | It acts majorly both on exocrine and endocrine parts of pancreas and liver | 
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). | 
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). | 
| 3. | (A) is true but (R) is false. | 
| 4. | Both (A) and (R) are false. | 
| Assertion (A): | Melatonin secretion is high at night and low during the day | 
| Reason (R): | Tryptophan is a non-essential amino acid | 
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). | 
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). | 
| 3. | (A) is true but (R) is false. | 
| 4. | Both (A) and (R) are false. | 
| 1. | Thyroid gland secretes only iodothyronines | 
| 2. | ADH and ANF are synergistic to each other | 
| 3. | All hypothalamic hormones originate in the hypothalamic neurons, pass through axons and are released from their nerve endings in the pituitary gland | 
| 4. | Gonads and pancreas do not only function as endocrine glands. | 
| 1. | Luteal hormone that supports pregnancy | 
| 2. | Hormone that produces anti-inflammatory reactions and suppresses the immune response | 
| 3. | Hormone secreted by the master of master gland | 
| 4. | Hormone whose hypersecretion causes protrusion of eyeballs |