The Km Values for Enzyme Reactions Such as a

question 29

Multiple Choice

The Km values for enzyme reactions such as A + B → C + D

• A)cannot be determined using the Lineweaver-Burk plot analysis.
• B)can be determined by holding one (A or B)at high concentration,while varying the concentration of the other substrate.
• C)can be determined for one substrate and not the other.
• D)do not indicate the efficiency of the enzyme.

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Definitions:

Vena Cava

The two large veins (the superior vena cava and the inferior vena cava) that carry deoxygenated blood from the body back to the heart.

Atrioventricular Valve

One of the two valves that separate the atrium and the ventricle in the heart, preventing backflow of blood.

Inferior Vena Cava

The large vein that carries de-oxygenated blood from the lower and middle parts of the body into the right atrium of the heart.

Valves

Structures in the heart and veins that maintain blood flow in one direction, preventing backflow.