Read the statement given below. Identify which of them are true and which of them are false. Select the correct option after referring to the given table.
A. The pituitary gland is present in a bony cavity of the skull known as sella tursica.
B. The pancreas is only an endocrine gland.
C. The diurnal rhythm of the body is maintained by the pineal gland.
D. Glucocorticoids stimulate glycolysis, lipolysis and proteolysis.

Options

A. A - True, B - False, C - True, D - False
B. A - False, B - True, C - False, D - True
C. A - True, B - False, C - True, D - True
D. A - False, B -True, C - True, D - True

Answer

To solve the question, we need to evaluate each of the four statements provided and determine whether they are true or false based on our knowledge of human biology, particularly the endocrine system.

### Step-by-Step Solution:

1. **Statement A: The pituitary gland is present in a bony cavity of the skull known as sella tursica.**
- **Evaluation:** This statement is **True**. The pituitary gland is indeed located in a bony cavity at the base of the skull called the sella turcica. It plays a crucial role in the endocrine system by releasing various hormones.

2. **Statement B: The pancreas is only an endocrine gland.**
- **Evaluation:** This statement is **False**. The pancreas functions as a mixed gland, meaning it has both endocrine (hormonal) and exocrine (digestive) functions. It secretes insulin and glucagon (endocrine) as well as digestive enzymes (exocrine).

3. **Statement C: The diurnal rhythm of the body is maintained by the pineal gland.**
- **Evaluation:** This statement is **True**. The pineal gland secretes melatonin, which is responsible for regulating the sleep-wake cycle and maintaining the diurnal rhythm of the body.

4. **Statement D: Glucocorticoids stimulate glycolysis, lipolysis, and proteolysis.**
- **Evaluation:** This statement is **False**. While glucocorticoids do stimulate lipolysis (fat breakdown) and proteolysis (protein breakdown), they do not stimulate glycolysis. Instead, they promote gluconeogenesis, which is the synthesis of glucose from non-carbohydrate sources.

### Summary of Evaluations:
- **A:** True
- **B:** False
- **C:** True
- **D:** False

### Final Answer:
The correct option is that statements A and C are true, while statements B and D are false.

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