Name a peptide hormone which acts mainly on hepatocytes, adipocytes and enhances cellular glucose uptake and utilisation.
1. Insulin 
2. Glucagon 
3. Secretin 
4. Gastrin 

Given ahead is an incomplete table about certain hormones, their source glands and one major effect of each on the body in humans. Identify the correct option for the three blanks A, B and C.

Options :

      A                B                 C

1. Placenta  Insulin         Vasopressin
2. Ovary     Insulin         Calcitonin      
3. Placenta  Glucagon     Calcitonin
4. Ovary     Glucagon     Growth hormone

Which one of the following pairs is incorrectly matched?

1. Glucagon - Beta cells (source)

2. Somatostatin - Delta cells (source)

3. Corpus luteum - Relaxin (secretion)

4. Insulin - Diabetes mellitus (disease)

Which of the following statements regarding glucagon is false?
1. It is secreted by $\mathrm{\alpha }$-cells of Langerhans.
2. It acts antagonistically to insulin. 
3. It decreases blood sugar level.
4. The gland responsible for its secretion is heterocrine gland

A patient of diabetes mellitus excretes glucose in urine even when he is kept in a carbohydrate free diet. It is because:-

1. fats are catabolised in adipose tissues to form glucose

2. amino acids are catabolised in kidney to form glucose

3. amino acids are discharged in blood stream from liver

4. glycogen from muscles is released in blood stream