Question

If diffusion were to move oxygen in our body . It is estimated that it would take 3 years for a molecule of oxygen to get to our toes from lungs. what do have in our body to overcome this problem?​

Answer 1

• Answer:
• Answer:diffusion would take very long time to transport oxygen from one part to another part that's the reason a body have in human beings the respiratory pigment is hemoglobin which has a very high affinity for oxygen and this pigment is very present in red blood corpuscles carbon dioxide is more soluble in water than oxygen and hence is it Mothi transported then dissolved form in our body

Answer 2

Answer:

The human body has special cells called red blood cells ( RBCs)  which help transport oxygen, thus overcoming this problem

Explanation:

What are red blood cells?

Red blood cells are found in the blood. It is also called erythrocytes. It contains a pigment called hemoglobin, which has a great affinity to oxygen. Hemoglobin combines with oxygen to form oxyhemoglobin as is transported to tissues. Approximately  97% of oxygen is transported in the blood to tissues in the form of oxyhemoglobin.

Thus we have red blood cells in our body to over the problem.