Some Students Work Hard in School to Attain High Grades

question 248

Multiple Choice

Some students work hard in school to attain high grades. This best illustrates the importance of

• A) homeostasis.
• B) set points.
• C) refractory periods.
• D) incentives.

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Definitions:

Active Transport

Transport of molecules across the membrane of a cell from areas where they are less concentrated to areas where they are more concentrated, which demands energy.

ATP

Adenosine triphosphate, a molecule that stores and transfers energy within cells, facilitating various biochemical processes.

Concentration Gradient

A difference in the concentration of a substance across a distance, which drives the passive movement of particles from an area of high to low concentration.

Exocytosis

A process by which cells release substances to the external environment by vesicles fusing with the plasma membrane.