Placenta nourishes the fetus. Therefore, D is the correct answer.
<span>D) allow the fetus to receive nutrients and oxygen.</span>
Answer:
the variable that is being measured
After chewing food the saliva covered mass that remains is called a bolus. This mass is easy to swallow and can move easily through the esophagus to the stomach. Chewing reduces the size of food and once it reaches the stomach it mixes with gastric acid which further breaks down food in the process of digestion.
The reaction of 2-phosphoglycerate to phosphoenolpyruvate is a <u>reversible dehydration reaction</u>
2-phosphoglycerate <=> phosphoenolpyruvate + H2O
Enolase is used to convert 2-phosphoglycerate (2PG) to phosphoenolpyruvate (PEP) in the 9th reaction of glycolysis: it is a reversible dehydration reaction.
The glycolytic enzyme enolase catalyzes the reversible elimination of water from 2-phosphoglycerate (2-PGA) to form phosphoenolpyruvate (PEP). Two magnesium ions in the active site are thought to facilitate the reaction by activation of the C2 proton of 2-PGA and charge stabilization of the intermediate.
<h3>Which enzyme causes the removal of water from 2-phosphoglycerate?</h3>
Enolase catalyzes the ninth step. This enzyme causes 2-phosphoglycerate to lose water from its structure; this is a dehydration reaction, resulting in the formation of a double bond that increases the potential energy in the remaining phosphate bond and produces phosphoenolpyruvate (PEP).
To learn more about phosphoenolpyruvate from the given link
brainly.com/question/24249841
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