Semester Exam Review

Front

What is Active Transport?

Back

Active Transport is the movement of substances across a cell membrane against their concentration gradient, requiring energy (ATP).

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What is Passive Transport?

Back

Passive Transport is the movement of substances across a cell membrane along their concentration gradient, without the use of energy.

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What is Endocytosis?

Back

Endocytosis is the process by which cells take in substances by engulfing them in a membrane.

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What is Exocytosis?

Back

Exocytosis is the process by which cells expel substances by vesicles fusing with the cell membrane.

Front

What is the role of ATP in Active Transport?

Back

ATP provides the energy required for Active Transport to move substances against their concentration gradient.

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How do solutes move in Passive Transport?

Back

Solutes move from an area of higher concentration to an area of lower concentration in Passive Transport.

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What is the difference between Active and Passive Transport?

Back

Active Transport requires energy to move substances against their gradient, while Passive Transport does not require energy and moves substances along their gradient.

Front

What is a concentration gradient?

Back

A concentration gradient is the difference in the concentration of a substance between two areas.

Front

What is the significance of membrane permeability in transport processes?

Back

Membrane permeability determines which substances can pass through the cell membrane, affecting both Active and Passive Transport.

Front

What are vesicles in the context of transport?

Back

Vesicles are small membrane-bound sacs that transport substances within a cell or to the cell membrane.