When a Muscle Cell Demands Energy to Perform Its Work

question 17

Multiple Choice

When a muscle cell demands energy to perform its work of contraction, ATP

• A) catalyzes the reaction.
• B) is broken down and liberates energy.
• C) is phosphorylated.
• D) manufactures more ATP.
• E) enters a metabolic pathway.

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Definitions:

Arterioles

Small branches of arteries leading into capillaries that are primary regulators of blood flow and pressure.

Blood Vessel Type

Refers to the various classes of blood vessels, including arteries, veins, and capillaries, each serving specific roles in circulation.

Pulmonary Circuit

Circuit through which blood flows from the heart to the lungs and back.

Hepatic Portal Vein

A blood vessel that carries blood from the gastrointestinal tract and spleen to the liver.