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Questions and Answers
What kind of energy do active transport mechanisms typically require?
What kind of energy do active transport mechanisms typically require?
In what scenario does a cell need to use active transport?
In what scenario does a cell need to use active transport?
What types of materials do active transport mechanisms move?
What types of materials do active transport mechanisms move?
Why must the cell use energy to move substances via active transport?
Why must the cell use energy to move substances via active transport?
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Which of the following is a capability of some cells related to active transport?
Which of the following is a capability of some cells related to active transport?
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Study Notes
Active Transport Mechanisms
- Active transport requires the use of the cell's energy, typically in the form of adenosine triphosphate (ATP).
- Active transport is necessary when a substance must move into the cell against its concentration gradient, resulting in a higher concentration inside the cell than in the extracellular fluid.
- Energy is used to move substances into the cell against their concentration gradient.
- Some active transport mechanisms move small-molecular weight material, such as ions, through the membrane.
- Cells also need to remove and take in larger molecules and particles through active transport.
- Some cells are capable of engulfing entire unicellular microorganisms, a process that requires active transport.
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Description
Explore the process of active transport, where cells use energy to move substances against their concentration gradient. Learn how cells utilize energy to transport ions and small molecules across the membrane.
