https://www.biology-online.org/dictionary/Transport

Mar 31, 2015 ... Definition. noun ... In biology, transport refers to the act or the means by which a ... Examples of passive transport include diffusion, filtration, and ...

https://www.khanacademy.org/science/biology/membranes-and-transport/passive-transport/a/diffusion-and-passive-transport

The simplest forms of transport across a membrane are passive. ... Image credit: OpenStax Biology, modified from original work by Mariana Ruiz Villareal. .... That said, this is also the definition of a gradient: it changes as you move from high to ...

http://ib.bioninja.com.au/standard-level/topic-1-cell-biology/14-membrane-transport/types-of-transport.html

Movement of materials across a biological membrane may occur either actively or ... Passive transport involves the movement of material along a concentration ...

https://www.bbc.com/bitesize/guides/zc9tyrd/revision/5

Revise how substances can move into and out of cells through diffusion, osmosis and active transport.

http://www.biologymad.com/resources/diffusionrevision.pdf

Diffusion, Osmosis, Active Transport. There are two ways in which substances can enter or leave a cell: 1) Passive a) Simple Diffusion b) Facilitated Diffusion.

https://biologydictionary.net/active-transport/

Active transport requires energy. It is most commonly accomplished by having a transport protein which changes shape when it binds with the cell's “fuel,” a ...

https://www.dictionary.com/browse/active-transport

Active transport definition, the movement of ions or molecules across a cellular membrane from a lower to a higher concentration, requiring the consumption of ...

http://www.reference.md/files/D001/mD001692.html

Definition: The movement of materials (including biochemical substances and drugs) through a biological system at the cellular level. The transport can be ...

http://www.biology4kids.com/files/cell2_passivetran.html

Biology4Kids.com! This tutorial introduces passive transport in cells. Other sections include plants, animal systems, vertebrates, and microorganisms.

https://www.brightstorm.com/science/biology/cell-functions-and-processes/cell-transport/

Cell transport is movement of materials across cell membranes. Cell transport includes passive and active transport. Passive transport does not require energy  ...