Ace Your OCR GCSE Biology 2025 – Dive Into Exciting Exam Excellence!

Question: 1 / 1090

Why is the bio-concave shape of red blood cells advantageous?

It allows for faster signal transmission

It provides a larger surface area for oxygen transport

The bio-concave shape of red blood cells is advantageous because it maximizes the cell's surface area relative to its volume. This increased surface area allows for a greater amount of oxygen to diffuse into the cells, enhancing their ability to transport oxygen from the lungs to the rest of the body. Additionally, this shape facilitates the efficient movement of red blood cells through narrow capillaries, ensuring that oxygen delivery can occur effectively at a cellular level. The design of red blood cells, with its thin edges, also allows for more rapid gas exchange, further optimizing the process of oxygen transport throughout the body. This unique structure is central to the efficient functioning of the circulatory system.

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It helps with the absorption of nutrients

It protects against bacteria and viruses

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