Question

Maximum exchange of materials takes place in
a.heart
b. kidney
c. liver
d.brain​

Answer 1

Answer:

Maximum exchange of materials takes place in heart

Explanation:

• Maximum exchange of materials takes place in blood and the surrounding cells, which is called capillaries (exchange site) in heart.
• Blood capillaries measure around 5-10 μm in diameter and are only one cell thick.
• Therefore, the exchange of materials can easily occur by the process of diffusion across the membranes.
• These capillaries link up arterioles and venules and allow the exchange of water, oxygen, carbon dioxide, and many other significant nutrients and waste substances between the blood and their surrounding tissues.

Answer 2

Answer:

the right answer is a heart