In Any Reaction Catalyzed by an Enzyme, the Reacting Molecule

question 61

Multiple Choice

In any reaction catalyzed by an enzyme, the reacting molecule is called the

• A)substrate.
• B)cofactor.
• C)coenzyme.
• D)isozyme.
• E)allostere.

---

Definitions:

Pulmonary Circuit

The part of the circulatory system that carries deoxygenated blood from the heart to the lungs for oxygenation, and returns oxygenated blood back to the heart.

Arteries

Blood vessels that carry oxygen-rich blood away from the heart to the body.

Left Ventricle

The chamber of the heart that receives oxygenated blood from the left atrium and pumps it out under high pressure through the aorta to the systemic circulation.

Aorta

Large artery that receives oxygenated blood pumped out of the heart’s left ventricle.