Which of these in blood absorbs O2 in respiration?Select an answerAWBCsBPlasmaCRBCsDPlatelets

Break Down the Problem

1. Identify the components of blood and their functions related to respiration.
2. Determine which component is primarily responsible for the absorption of oxygen.

Relevant Concepts

• Red Blood Cells (RBCs): Contain hemoglobin, a protein that binds to oxygen in the lungs.
• White Blood Cells (WBCs): Part of the immune system; they do not play a role in gas exchange.
• Plasma: The liquid component of blood that carries nutrients, hormones, and waste; it does not absorb oxygen.
• Platelets: Involved in clotting; they do not have a role in oxygen transportation.

Analysis and Detail

• RBCs are central to oxygen transport. Each hemoglobin molecule can bind up to four oxygen molecules, which allows for efficient uptake of oxygen during respiration.

Verify and Summarize

• Given the roles of the components, it is clear that the primary function of absorbing oxygen in the blood is attributed to Red Blood Cells (RBCs).

Final Answer

C. RBCs