Active Transport - The Definitive Guide - Biology Dictionary
网页2020年5月16日 · Active transport is the process of transferring substances into, out of, and between cells, using energy. In some cases, the movement of substances can be accomplished by passive transport, which uses no energy. However, the cell often needs to transport materials against their concentration gradient. In these cases, active …
Active transport - Wikipedia
网页Active transport requires cellular energy to achieve this movement. There are two types of active transport: primary active transport that uses adenosine triphosphate (ATP), and secondary active transport that uses an electrochemical gradient.
Active Transport - Definition And Types Of Active Transport
网页2020年7月20日 · Active transport is a mode of transportation in plants, which uses stored energy to move the particles against the concentration gradient.
Active Transport- Definition, Types, Process, Examples
网页2023年8月3日 · What is Active Transport? Active transport is the energy-driven transportation of ions, small molecules, and solutes across the biological membrane against an electrochemical gradient (for ions) or concentration gradient i.e., from lower to higher concentration.
3.6 Active Transport - Concepts of Biology - OpenStax
网页Active transport mechanisms, collectively called pumps or carrier proteins, work against electrochemical gradients. With the exception of ions, small substances constantly pass through plasma membranes. Active transport maintains concentrations of ions and other substances needed by living cells in the face of these passive changes.
3.6: Active Transport - Biology LibreTexts
网页2021年9月21日 · Active transport of small molecular-size material uses integral proteins in the cell membrane to move the material—these proteins are analogous to pumps. Some pumps, which carry out primary active transport, couple directly with …
7.7: Active Transport - Biology LibreTexts
网页2021年2月28日 · Active transport mechanisms, collectively called pumps, work against electrochemical gradients. Small substances constantly pass through plasma membranes. Active transport maintains concentrations of ions and other substances needed by living cells in the face of these passive movements.
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