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Which of the following is NOT consistent with active transport?
A) Movement is against a concentration gradient
B) Movement is with a concentration gradient
C) Involves a carrier
D) Exhibits competition and saturation
E) Uses cell energy
Active Transport
A cellular process that requires energy to move substances across cell membranes against a concentration gradient.
Concentration Gradient
The gradual difference in the concentration of solutes in a solution between two regions. In biology, it often refers to differences across a membrane.
Carrier
A molecule or protein that transports substances across a cell membrane, or a person or animal that transmits a disease-causing agent without showing symptoms.
- Gain understanding of the differing modalities of membrane transport and their particular properties, including active transport, facilitated diffusion, osmosis, phagocytosis, and endocytosis.
- Differentiate between energy-dependent and energy-independent cellular processes.
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Learning Objectives
- Gain understanding of the differing modalities of membrane transport and their particular properties, including active transport, facilitated diffusion, osmosis, phagocytosis, and endocytosis.
- Differentiate between energy-dependent and energy-independent cellular processes.
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