Answer:
A. can be used for both catabolism and anabolism
Explanation:
An amphibolic pathway can be used for both catabolic and anabolic reactions.
During Catabolism, complex or large molecules are broken down into smaller ones. Catabolism produces energy.
During anabolism, larger molecules are made from simple ones. Anabolism uses up energy.
Both catabolism and anabolism are needed in the cell.
An example of an amphibolic pathway is the Kreb's cycle. It produces intermediates (molecules) that are used by both catabolic and anabolic pathways.
The interstitial fluid is the fluid that moves around in the circulatory system of a typical arthropod. Arthropods have an open circulatory system, which pumps blood into a cavity called hemocoels that sorrounds the organs and then returns to the heart through ostia (openings). They contain hemolymph which is a mixture of blood and the interstitial fluid.
<span>Active transport is the movement of molecules across a cell membrane from a region of their lower concentration to a region of their higher concentration—in the direction against some gradient or other obstructing factor (often a concentration gradient).</span>
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