Web Results

en.wikipedia.org/wiki/Passive_transport

Passive transport is a movement of ions and other atomic or molecular substances across cell membranes without need of energy input. Unlike active transport ...

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

Passive transport does not require the cell to expend any energy and involves a substance diffusing down its concentration gradient across a membrane.

www.khanacademy.org/science/biology/membranes-and-transport/passive-transport/v/passive-transport-and-selective-permeability

Hydronium ions are charged particles and therefore require a transport system to move them across the phospholipid bilayer. In living cells such transporters are ...

moodle.kent.ac.uk/external/mod/book/view.php?id=2396&chapterid=81

Naturally, molecules move from an area of high concentration to low concentration without the need of energy. This type of movement is passive transport.

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.

courses.lumenlearning.com/biology1/chapter/passive-transport

The most direct forms of membrane transport are passive. Passive transport is a naturally occurring phenomenon and does not require the cell to expend energy  ...

www.boundless.com/biology/textbooks/boundless-biology-textbook/structure-and-function-of-plasma-membranes-5/passive-transport-65/the-role-of-passive-transport-329-11466

Learn more about the role of passive transport in the Boundless open textbook. Passive transport, such as diffusion and osmosis, moves materials of small ...

www.brainpop.com/science/cellularlifeandgenetics/passivetransport

In this educational animated movie about Science learn about cells, membranes, pores, diffusion, concentration, gradient, equilibrium, and active transport.

college-cram.com/study/biology/cell-membranes/passive-transport

Aug 14, 2007 ... Passive transport is the cellular process of moving molecules and other substances across membranes. Passive transport differs from active ...

study.com/academy/lesson/active-and-passive-transport-across-the-cell-membrane.html

A cell membrane is selectively permeable - not permeable to everything. In this lesson, we'll talk about methods of passive transport along a...