The blood level of which of the following is most significant in regulating the respiratory center of mammals?

Question

A. Oxygen

B. Hydrogen

C. Carbon dioxide

D. Carbonic acid

Answer 1

oxygen.

carbon dioxide and carbonic acids are the same. Just that the carbonic acid is formed when carbon dioxide is dissolved in water, where their H+ ions are relasead, forming acids. Carbon dioxide are not needed in our body, and are always removed from our blood.

Hydrogen is not needed as too much can increase our hydrogen peroxide. Though they can be broken down by catalase, it is natural for us to exhale it.

Oxygen is required for active transport. For example, when high amounts of nutrients are being absorbed by the villi in our small intestine and diffused into our bloodstream, the concentration of glucose and amino acids in the ileum aould decrease. However, we required all nutrients to be absorbed. Since it cannot be diffused, it has to, by active transport.

This process requires oxygen, as, during aerobic respiration, then the mitochondrion in cells would oxidised food substances to release energy for active transport to take place. Without the oxygen, our organs would fail, since active transport is occurring in most parts of our body.