Question

Glycolysis of a glucose molecule:

Select one:
a. Occurs only in animal cells
b. Transfers electrons from glucose to FAD
c. Occurs only in microorganisms
d. Produces a net gain of two molecules of ATP
e. None of the above are correct
Check

Answer 1

The correct answer is d. Produces a net gain of two molecules of ATP, as glycolysis involves the conversion of glucose into two pyruvate molecules, with a net production of two ATP molecules.

Step-by-step explanation:

The question asks about the outcomes of glycolysis of a glucose molecule. Among the given options, the correct one is:

• d. Produces a net gain of two molecules of ATP.

Glycolysis starts with glucose and ends with two pyruvate molecules, a total of four ATP molecules, and two molecules of NADH. However, because two ATP molecules are utilized in the initial steps of the pathway to phosphorylate glucose, the net gain is two ATP molecules (net production of ATP).

Every living organism carries out glycolysis, meaning it does not only occur in animal cells or microorganisms. Furthermore, the electrons from glucose are transferred to NAD+ to form NADH rather than to FAD. Thus, the correct answer reflects glycolysis's universal role in producing energy and as the initial phase of cellular respiration in various forms of life.