69371
Description
Mind Map by elliesussex, updated more than 1 year ago
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Created by elliesussex
almost 11 years ago
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Active Transport
- Allows cells to absorb substances
across partially permeable
membranes against the
concentration gradient.
- Cells may need to absorb
substances which are in short
supply, e.g. against the
concentration gradient.
- Requires the use of
energy released in
respiration
- Cells are able to absorb ions from dilute
solutions
- E.g. root cells absorb mineral ions from the
dilute solutions in the soil by active transport.
- E.g. root cells absorb mineral ions from the
dilute solutions in the soil by active transport.
- Glucose can be reabsorbed in the kidney tubules by active transport.
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