Which of the Following Is Not True of the Citric

question 52

Multiple Choice

Which of the following is not true of the citric acid cycle?

• A)All enzymes of the cycle are located in the cytoplasm,except succinate dehydrogenase,which is bound to the inner mitochondrial membrane.
• B)In the presence of malonate,one would expect succinate to accumulate.
• C)Oxaloacetate is used as a substrate but is not consumed in the cycle.
• D)Succinate dehydrogenase channels electrons directly into the electron transfer chain.
• E)The condensing enzyme is subject to allosteric regulation by ATP and NADH.

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Definitions:

Radial Cleavage

A type of embryonic development in which the cells divide parallel or perpendicular to the polar axis, resulting in a radially symmetrical embryo.

Echinoderms

A phylum of marine animals characterized by radial symmetry and a unique water vascular system, including starfish and sea urchins.

Amphibians

Cold-blooded vertebrates that can live both in water and on land, such as frogs, toads, salamanders, and newts.

Mesoderm

The middle layer of an embryo in early development, which gives rise to muscles, bones, and other related structures.