Before your food passes from the mouth and down your esophagus, salivary amylase, an enzyme in saliva, begins to digest the starch in your bread. That is the start of chemical digestion. ... The passage of the bolus through the esophagus to the stomach occurs by peristalsis, a series of wave-like muscle contractions.
Answer:
The correct answer is option d. "phosphorylation of glucose".
Explanation:
The phosphorylation of glucose is one of the most important catabolic reactions that allow to obtain energy from sugars. This reaction is the first step of glycolysis and avoid cells to lose sugars by diffusing back to its transporter. The phosphate used to phosphorylate glucose comes from the hydrolysis of one of the three phosphate of adenosine triphosphate. Therefore, phosphorylation of glucose is a processes where ATP hydrolysis is directly involved.
A sperm and an egg cell are each gametes. They fuse to become a zygote cell which develops into a fetus
Answer: 4
Explanation:
I got it right on the test
