About 10,600,000 results
Open links in new tab
  1. Active and Passive Transport – Overview and Differences

    Mar 19, 2022 · Active transport moves ions and molecule against the concentration gradient (from lower to higher concentration), while passive transport moves chemicals from higher to lower …

  2. Active transport - Wikipedia

    In cellular biology, active transport is the movement of molecules or ions across a cell membrane from a region of lower concentration to a region of higher concentration —against the concentration …

  3. Active Transport- Definition, Types, Process, Examples

    Aug 3, 2023 · 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 …

  4. Active Transport - The Definitive Guide | Biology Dictionary

    May 16, 2020 · Active transport moves substances from a region of lower concentration to a higher concentration, i.e., against the concentration gradient. There is an energy requirement for this …

  5. Active transport: primary & secondary overview (article) - Khan Academy

    In active transport, unlike passive transport, the cell expends energy (for example, in the form of ATP) to move a substance against its concentration gradient.

  6. Active Transport – Definition, Types, Functions and Diagram

    Feb 2, 2023 · Active transport is an energy or ATP-dependent, cellular transport process that selectively moves substances from an area of low concentration to an area of high concentration or ‘against the …

  7. Active Transport (Cellular Biology) | Research Starters - EBSCO

    Active transport is a vital cellular process that enables organisms to move substances across cell membranes against their concentration gradients, requiring energy input in the form of adenosine …

  8. Active transport - Transport in cells - AQA - GCSE Biology (Single ...

    Active transport is a process that is required to move molecules against a concentration gradient.The process requires energy. For plants to take up mineral ions, ions are moved into root...

  9. Active transport | cell physiology | Britannica

    Active transport systems move chemicals essential to cellular functions through the membrane into the cell. Such essential chemicals include calcium ions, amino acids, carbohydrates, and vitamins.

  10. Active vs. Passive Transport - Biology, Examples, & Differences

    Feb 22, 2025 · Unlike passive transport, active transport requires energy because it moves substances against their concentration gradient—from an area of lower concentration to one of higher …