Which of the following statements is correct

Options

A. Argentaffin cells produce serotonin
B. Villikinin is secreted by large intestine
C. In cheilosis, deficiency nutrient is nicotinamide
D. Bleeding diseases occur due to deficiency of vitamin

Explanation

To determine which of the statements is correct, let's analyze each statement one by one:

1. **Argentafil cells produce serotonin.**
- Argentafil cells, also known as enterochromaffin cells, are indeed responsible for the production of serotonin. Serotonin plays a crucial role in the gastrointestinal tract by helping to regulate smooth muscle contraction. Therefore, this statement is **correct**.

2. **Williocyanin is secreted by the large intestine.**
- This statement is **incorrect**. Williocyanin, which is involved in the absorption process, is actually secreted by the small intestine, not the large intestine.

3. **In their losses, deficiency nutrient is nicotine amide.**
- This statement is also **incorrect**. The nutrient that is typically associated with deficiency in this context is riboflavin (vitamin B2), not nicotine amide (niacin).

4. **Bleeding disease occurs due to deficiency of vitamin.**
- This statement is **correct**. Bleeding diseases, such as those related to clotting disorders, can occur due to a deficiency of vitamin K, which is essential for blood clotting.

After evaluating all the statements, we find that the correct statements are:

- Argentafil cells produce serotonin (Statement 1).
- Bleeding disease occurs due to deficiency of vitamin K (Statement 4).

Thus, the correct answers are statements 1 and 4.