Question

Apart from plasma, which of the following is found in blood ?

• A. White Blood Cells (WBC)
• B. Red Blood Cells (RBC)
• C. Blood platelets
• D. All of these

Hint:

Remember the main components of blood: Plasma (the liquid) and Formed Elements (the 'solid' parts: RBCs, WBCs, and platelets).

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
Blood is a specialized body fluid with two main components: plasma and formed elements. The question asks to identify the formed elements.

Step 2: Detailed Explanation:
\[\begin{array}{rl} \bullet & \text{Plasma: This is the liquid matrix of blood, making up about 55% of its volume. It consists of water, proteins, salts, hormones, and waste products. } \\ \bullet & \text{Formed Elements: These are the cells and cell fragments suspended in the plasma, making up about 45% of blood volume. They include: } \\ \bullet & \text{Red Blood Cells (RBCs or Erythrocytes): Responsible for transporting oxygen. } \\ \bullet & \text{White Blood Cells (WBCs or Leukocytes): Part of the immune system, fighting infection. } \\ \bullet & \text{Blood Platelets (Thrombocytes): Cell fragments that are essential for blood clotting. } \\ \end{array}\] \end{itemize} Since WBCs, RBCs, and platelets are all components of blood apart from plasma, the correct answer is 'All of these'.

Step 3: Final Answer:
White Blood Cells, Red Blood Cells, and Blood platelets are all found in blood in addition to plasma.