<span>Each parent cell has the full 46 chromosomes, but during the process of meiosis, the cells are split to produce daughter cells with just the base 23. If the cells did not split and reduce the number of chromosomes, the new individual would either not survive due to having 92 chromosomes or be severely disabled. The gametes produced by a female are larger than those produced by males. This is referred to as heterogamy.</span>
The true statement about the Krebs cycle is letter C.
acetyl-CoA combines with pyruvic avid to make glucose in the Krebs cycle. the
carbon atoms that enter the Krebs cycle as acetyl CoA, They combine with a
4-carbon sugar to form a 6-carbon sugar citrate.
Answer: is it A someone tell me im doing it right now
Explanation:
Oxygen is required for aerobic respiration. This reaction produces ATP (universal currency for energy) which our bodies use to survive. Without oxygen much less ATP is produced, as aerobic respiration cannot occur in the lack of oxygen. ATP can be formed by anaerobic respiration, in the lack of oxygen, but this produces far far fewer molecules of ATP. This also produces lactic acid causing us to become fatigued and tired. Thus oxygen is crucial to produce the maximum amount of ATP possible.
Glucose is the main molecule which is respired by our bodies to produce ATP/ energy, which our bodies use to survive. Oxygen and glucose react in the mitochondria to make ATP (release energy.) It therefore, is called a respiratory substrate.
Note: I'm avoided talking about the exact phases of respiration as it is usually not covered till college/ A level standards. If you would like to know exactly which reaction requires oxygen and how it's used (i.e. the stages of respiration) don't hesitate to ask.
