2. What are the four stages necessary for aerobic respiration? Underline the event(s)

that occur in anaerobic fermentation. Star* that which produces the most ATP.

There are two questions involved here.

1.Glycolysis, Kreb's cycle, Electron transport chain, Chemiosmosis

2. Processes involved in anaerobic fermentation are: *Glycolysis and NAD+ regeneration

Explanation:

Living cells require energy to perform their life processes. This energy is obtained through the process of RESPIRATION, which is the breakdown of food molecules with oxygen (aerobic) or without oxygen (anaerobic) to release energy.

The process of aerobic cellular respiration involves four main stages including Glycolysis, Kreb's cycle, Electron transport chain and Chemiosmosis. Glycolysis takes place in the cytoplasm of the cell and does not require oxygen to occur. Hence, it is a general process for both aerobes and anaerobes. Kreb's cycle and Oxidative phosphorylation (ETC and Chemiosmosis) occurs in the cristae of the mitochondria.

At the end of the aerobic cellular respiration, 38 and 36 ATP molecules are yielded in prokaryotic and eukaryotic cells respectively.

2. Fermentation is a type of anaerobic respiration carried out by organisms like yeast etc. Fermentation, like, aerobic respiration begins with Glycolysis which yields pyruvate, 2ATP and 2NADPH molecules. However, the electron carrier needs to donate its electron in order to become NADP+ that will bring about the continuation of the fermentation process.

The second process of fermentation involves regenerating NADP+ and the cell does this by donating the electrons carried by NADPH to pyruvate, converting it to lactate/alcohol. Hence, Glycolysis generates the most ATP.

hey, i believe your answer would be d. sugar ribose and the base uracil. i believe this is the answer, because rna consists of sugar ribose, adenine, guanine, cytosine, and uracil.

your first option is incorrect, because that's dna. where it consists of sugar deoxyribose, adenine, guanine, cytosine and thymine.

your second option is also incorrect, this is because sugar deoxyribose is in dna, and uracil is in rna. these two do not make sense together.

your third option being incorrect, because sugar ribose is in rna, but not the base of thymine. rna consists of uracil, not thymine.

lastly your fourth option being correct! this answer is correct, because both sugar ribose, and the base uracil are in rna! ~

answer is d. sugar ribose and the base uracil.