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69371
Active Transport
Description
biology (B3.1) Mind Map on Active Transport, created by elliesussex on 03/05/2013.
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b3.1
biology
b3.1
Mind Map by
elliesussex
, updated more than 1 year ago
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Created by
elliesussex
about 11 years ago
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Resource summary
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.
Glucose can be reabsorbed in the kidney tubules by active transport.
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