active transport
active transport
An example of active transport is sugar molecules going into a cell. It cannot pass right through like water and oxygen so it uses active transport.Diffusion
Polar molecules must pass through the membrane via active transport. This is because the cellular membrane is mostly nonpolar, and polar and nonpolar molecules repel each other. Only nonpolar molecule (i.e. hormones) can pass through the membrane without active transportation.
Active transport requires energy input in the form of ATP to move molecules against their concentration gradient, while passive transport does not require energy and moves molecules along their concentration gradient. Active transport typically involves the use of transport proteins called pumps, while passive transport involves channels or carriers that facilitate movement without requiring energy.
active transport
substance to pass
substance to pass
Active transport requires energy; passive transport does not.
active transport
To distribute is to pass out, issue transport is to move from one place to another by vehicle
Both facilitated transport and active transport require the substance that passes the membrane to pass through intermembrane proteins. However, unlike active transport, facilitated transport does not require ATP because it is not actively going against the concentration gradient.
An example of active transport is sugar molecules going into a cell. It cannot pass right through like water and oxygen so it uses active transport.Diffusion
An example of active transport is sugar molecules going into a cell. It cannot pass right through like water and oxygen so it uses active transport.Diffusion
passive transport
It is a type of passive diffusion, as the water travels along a concentration gradiant. As opposed to active transport, where the substances can pass against a concentration gradiant.
Transport proteins allow the active transport of large molecules through the cellular membrane.