Describe the mechanism of active transport through plasma membrane of plant cell.
Active transport is the movement of molecules across a membrane from a region of their lower concentration to a region of their higher concentration—in the direction against the concentration gradient. Active transport requires cellular energy to achieve this movement. There are two types of active transport – primary active transport that uses ATP, and secondary active transport that uses an electrochemical gradient. An example of active transport in human physiology is the uptake of glucose in the intestines.
Primary active transport, also called direct active transport, directly uses metabolic energy to transport molecules across a membrane.[14] Substances that are transported across the cell membrane by primary active transport include metal ions, such as Na+, K+, Mg2+, and Ca2+. These charged particles require ion pumps or ion channels to cross membranes and distribute through
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