A Concentration Gradient Can Be Described as

question 72

Multiple Choice

A concentration gradient can be described as

• A) a difference in a substance's concentration in two different places in the cell
• B) a difference in a substance's concentration on two sides of the membrane
• C) Both statements describe concentration gradient.
• D) None of the descriptions is correct.

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Definitions:

Interval

Time between events; space. On an ECG, the period that includes one segment and one or more waves, that is, P-R interval.

P-R Interval

A measurement in electrocardiography that represents the time between the onset of atrial depolarization and the onset of ventricular depolarization.

Countershock

(In cardiology) A high-intensity, short-duration, electric shock applied to the area of the heart, resulting in total cardiac depolarization.

Cardiac Depolarization

An event in the cardiac cycle where the heart's muscle cells become electrically charged, leading to muscle contraction and heartbeat.