Which Intermediate Compound(s)in the Citric Acid Cycle Is/are Often Used

question 26

Multiple Choice

Which intermediate compound(s) in the citric acid cycle is/are often used for biosynthetic pathways as well as carbon catabolism?

• A) α-ketoglutarate
• B) oxaloacetate
• C) succinyl-CoA
• D) α-ketoglutarate, oxaloacetate, and succinyl-CoA

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Definitions:

Lipid Bilayer

Double layer of phospholipids arranged tail-to-tail; structural foundation of all cell membranes.

Hydrophobic Tails

The nonpolar, water-repelling part of a phospholipid molecule that faces inward, away from water, in the bilayer of cell membranes.

Archaeal Phospholipids

Unique lipid molecules found in the cell membranes of Archaea, known for their ether bonds and isoprenoid chains.

Plasma Membrane

The plasma membrane is the biological membrane that separates the interior of all cells from the external environment, providing structural support and regulating the passage of substances into and out of the cell.