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- In GCSE biology, active transport is defined as the movement of particles across a membrane from an area of low concentration to an area of high concentration. This movement occurs against a concentration gradient, so energy is required.
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In animals, plants and microorganisms, substances move into and out of cells by diffusion, osmosis and active transport. Discover how substances move into and out of cells through...
Aug 3, 2023 · Active Transport – A transport mechanism that involves the movement of molecules across the membrane against the concentration gradient, meaning the transport of substances from low to high concentration. This movement is achieved by the energy expenditure from ATP (adenosine triphosphate). Examples include:
The field of biology (and all the sub-fields of biology, such as zoology, botany, entomology and ornithology) is full of terms that may unfamiliar to those not from a scientific background. In this glossary, we hope to explain the meaning of over 60 different words and phrases you may come across.
Active transport moves particles from low to higher concentration. Part of Biology (Single Science) Key concepts in biology. Save to My Bitesize. Remove from My Bitesize. In this...
Jun 25, 2021 · The organism moves directly away from or towards the stimulus. A single-celled organism called Euglena which is commonly found in ponds exhibits taxis. It has chloroplasts for photosynthesis and a flagellum to help it swim. The flagellum has a receptor close to its base that is sensitive to light.
