Answer:
C. Meiosis since it produces haploid cellsneeded for reproduction.
Water gains energy during evaporation and releases it during condensation.
Answer:
option D
Explanation:
Negative feedback is a mechanism in which function of a cell or an organ is decreased. It lessened the output of a system and maintain system function which is known as homeostasis. It is a regulatory mechanism of normal physiology. Some of examples are
blood sugar level regulation, regulation of blood pressure, thermoregulation and many more.
During glycolysis, the source of the chemical energy that is captured in ATP:
B. the chemical bonds in glucose
Explanation:
- Glycolysis is also known as Embden-meyerhof pathway.
- It is an oxidative process in which one mole of glucose is partially oxidized into two moles of pyruvate.
- Glycolysis occurs in the cytosol of the cell in both aerobic and anaerobic conditions.
- The breakdown of six-carbon glucose into two molecules the three-carbon pyruvate occurs in ten steps.
- The first five steps of this pathway constitute the preparatory phase.This phase consumes energy during the phosphorylation of glucose.
- The preparatory phase produces two molecules of glyceraldehyde 3-phosphate (G3P).
- The two molecules of G3P are then converted to pyruvate in the next five steps that constitute the payoff phase.
- The energy gain of glycolysis comes in this payoff phase.
- The oxidation of G3P yields a high energy molegule 1,3 -bisphosphoglycerate .
- The high energy phosphate on carbon 1 of this molecule is donated to ADP and ATP is produced.
- This synthesis of ATP is called substrate level phosphorylation because ADP phosphorylation is coupled with exergonic breakdown of a high-energy bond.
