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:

Female Sex Cell

An ovum or egg cell, which is produced by the ovaries of female organisms and can be fertilized by a male sex cell.

Turner's Syndrome

A chromosomal disorder affecting females, characterized by the absence of all or part of a second sex chromosome.

Infertile

The inability to conceive children or young after a period of time, usually a year or more of regular sexual activity without contraception.

Down Syndrome

A genetic disorder caused by the presence of all or part of a third copy of chromosome 21, characterized by physical growth delays, characteristic facial features, and often intellectual disability.