Which of the Following Is True of Enzymes

question 58

Multiple Choice

Which of the following is true of enzymes?

• A) Nonprotein cofactors alter the substrate specificity of enzymes.
• B) Enzyme function is increased if the 3-D structure or conformation of an enzyme is altered.
• C) Enzyme function is independent of physical and chemical environmental factors such as pH and temperature.
• D) Enzymes increase the rate of chemical reaction by lowering activation energy barriers.
• E) Enzymes increase the rate of chemical reaction by providing activation energy to the substrate.

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Definitions:

Flexion

Flexion is a movement that decreases the angle between two body parts, such as bending an elbow or knee.

Subscapular Bursa

A fluid-filled sac located between the shoulder blade (scapula) and the rib cage that helps reduce friction during shoulder movements.

Shoulder Joint

A ball-and-socket joint that connects the upper arm to the torso, allowing a wide range of arm movements.

Retraction

Movement in the posterior direction.