Regarding the citric acid cycle, which molecule participates in a complex reaction involving NAD and coenzyme A within the mitochondrion?

A) pyruvate
B) citric acid
C) ATP
D) oxygen
E) FADH2


A) pyruvate

Anatomy & Physiology

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Peristalsis slows in the elderly.

Answer the following statement true (T) or false (F)

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Postpartum, estrogen and progesterone levels

A. rise steeply. B. rise gradually. C. fall steeply. D. fall gradually.

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A(n) ________ acid is an acid that can leave solution and enter the atmosphere

A) fixed B) organic C) volatile D) weak E) hydrophobic

Anatomy & Physiology