Question

Which sequence best summarizes lactic acid fermentation?

Answer 1

Answer;

D) glucose → lactic acid + energy

Explanation;

Fermentation refers to the process in which energy in form of ATP is generated in the absence of oxygen, through glycolysis alone.

Thus, Lactic acid fermentation is a type of anaerobic respiration that takes place in the muscle cells in which glucose is broken down to yield fast energy and lactic acid as a byproduct.

This type of anaerobic respiration converts pyruvate, final product of glycolysis, to lactic acid with regenaration of NAD+, which allows a continued production of ATP by glycolysis. Therefore, the muscles continues to produce energy when oxygen levels are low.

Answer 2

Answer:

(D). glucose → lactic acid + energy

Explanation:

Lactic acid fermentation can be defined as a metabolic process, which involves conversion of glucose into energy and lactic acid molecules.

It takes place in anaerobic conditions and takes place in some anaerobic bacterial cells and yeast cells. Animal cells, such as muscle cells also perform lactic acid fermentation under hypoxic conditions.

Thus, the correct answer is option (D).