Which Enzyme Does NOT Catalyze a Committed Step in the Indicated

question 75

Multiple Choice

Which enzyme does NOT catalyze a committed step in the indicated metabolic pathway?

• A) pyruvate carboxylase - gluconeogenesis
• B) isocitrate dehydrogenase - Krebs cycle
• C) phosphofructokinase - glycolysis
• D) tyrosine aminotransferase - catabolism of tyrosine
• E) acetyl CoA carboxylase - fatty acid biosynthesis

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Definitions:

Simple epithelium

A single layer of cells that forms the lining of various organs and body cavities, involved in absorption, secretion, and filtration.

Pseudostratified Columnar Epithelium

A type of epithelial tissue appearing to have multiple layers due to cell nuclei at different levels but is actually single-layered.

Reproductive Tract

The body system involved in reproduction, consisting of both male and female reproductive organs.

Stratified Epithelia

Epithelial tissues composed of multiple layers of cells, providing protective functions in areas of friction or wear.