Active Transport
Extended
• Define active transport
• Discuss the importance of active transport
as an energy-consuming process by which
substances are transported against a
concentration gradient, e.g. ion uptake by root
hairs and uptake of glucose by epithelial cells
of villi
Active Transport is when a substance is taken from an area of lower concentration to that of higher concentration against its concentration gradient, as its name suggests this process requires energy released from respiration.
Without the possibility of Active Transport plants would not be able to take in certain minerals found in small amounts in soil near them, this would cause them to wilt and eventually die.
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