Megakaryocytes

Options

A. Produce leukocytes
B. Forms blood platelets
C. Are carriers of oxygen
D. Are carriers of oxygen

Answer

**Step-by-Step Solution:**

1. **Understanding Megakaryocytes:**
- Megakaryocytes are large cells found in the bone marrow. They play a crucial role in the production of blood components.

2. **Function of Megakaryocytes:**
- The primary function of megakaryocytes is to produce thrombocytes, which are also known as platelets. Platelets are essential for blood clotting and wound healing.

3. **Analyzing the Options:**
- **Option 1:** "Produce leukocytes" - This is incorrect because leukocytes (white blood cells) are produced by different cells in the bone marrow, not megakaryocytes.
- **Option 2:** "Give rise to blood platelets" - This is correct as megakaryocytes are responsible for the formation of platelets.
- **Option 3:** "Are carriers of oxygen" - This is incorrect; oxygen is carried by red blood cells (RBCs) through hemoglobin, not by megakaryocytes.
- **Option 4:** "Are carriers of oxygen" - This is a repetition of Option 3 and is also incorrect.

4. **Conclusion:**
- The correct answer is Option 2: "Megakaryocytes give rise to blood platelets."