Question

Let's recap fermentation! Cells do fermentation without involving _____. In both types of fermentation, first glycolysis makes ____, then in alcoholic fermentation, that molecule is converted into ____ while adding back electrons to regenerating the necessary oxidized version of NADH, called NAD+. In lactic acid fermentation, the glycolysis product is converted into ____, but NAD+ is still regenerated. Humans can do ____, but only in their _____.

A) Oxygen; Pyruvate; Ethanol; Lactic Acid; Aerobic Respiration; Mitochondria
B) Carbon dioxide; Glucose; Oxygen; Water; Photosynthesis; Chloroplasts
C) Sunlight; ATP; Glucose; Oxygen; Cellular Respiration; Cytoplasm
D) Light; Carbon dioxide; Glucose; Ethanol; Fermentation; Nucleus
E) Nitrogen; Amino acids; Proteins; Lipids; Anabolic Processes; Endoplasmic Reticulum

Answer 1

Fermentation is a process where cells produce ATP without oxygen. In alcoholic fermentation, pyruvate is converted into ethanol, while in lactic acid fermentation, pyruvate is converted into lactic acid. Humans can perform lactic acid fermentation in their muscle cells.

Step-by-step explanation:

Fermentation is a process that cells undergo in the absence of oxygen. It does not involve the latter two stages of aerobic cellular respiration. In alcoholic fermentation, pyruvate is converted into ethanol, while in lactic acid fermentation, pyruvate is converted into lactic acid.

Both types of fermentation regenerate NAD+ from NADH so that glycolysis can continue and produce ATP. Humans can perform lactic acid fermentation, but only in their muscle cells.