The Enzyme That Converts Pyruvic Acid into Acetyl-CoA Requires Vitamin

question 40

Multiple Choice

The enzyme that converts pyruvic acid into acetyl-CoA requires vitamin B₁, also called thiamine. Vitamin B₁ has to be taken in through the diet of an individual. At what phase would cellular respiration come to a halt without B₁?

• A) glycolysis
• B) preparatory reaction
• C) citric acid cycle
• D) electron transport chain
• E) carbon fixation

---

Definitions:

Criterion

A standard or principle by which something is judged or decided, used as a basis for comparison.

Cultures

The sum total of ways of living built up by a group of human beings, transmitted from one generation to another.

Financially Independent

Being in a condition where one possesses enough personal wealth to sustain oneself without the need to engage in active labor for essential needs.

Socioeconomic Status

An assessment of a person's or family's financial and societal status compared to others, determined by their earnings, level of education, and employment.