Oxygen is transported to the cells of the human body through ______?

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Oxygen is transported to the cells of the human body through ______? Answer: Red blood cells

Oxygen is transported to body cells by red blood cells (RBCs), which contain the protein hemoglobin. Hemoglobin binds oxygen in the lungs and releases it in tissues where it is needed for cellular respiration—the process that produces energy for the body.

Question context

This question is part of 🔬 General Science within the broader 🌐 Current Affairs & GK subject and appears in the SPSC – Sindh Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.