answersLogoWhite

0

Active transport can occur against a diffusion gradient ("uphill flow).

User Avatar

Wiki User

8y ago

What else can I help you with?

Continue Learning about Physics

Is facilitated diffusion an example of active transport?

No, facilitated diffusion is a type of passive transport where molecules move across a cell membrane with the help of transport proteins. Active transport, on the other hand, requires energy to move molecules against their concentration gradient.


Osmosis does it need energy?

No, osmosis does not require energy input because it is a passive process where water molecules move from an area of higher concentration to an area of lower concentration through a selectively permeable membrane. This movement occurs spontaneously in an effort to equalize the concentration on both sides of the membrane.


Is kenetic energy used in passive transport?

No, passive transport does not use kinetic energy. Passive transport processes like osmosis, diffusion, and facilitated diffusion rely on the natural movement of molecules from an area of high concentration to an area of low concentration, without requiring additional energy input.


What kind of transport across a membrane does not require energy?

Passive transport does not require energy as it allows molecules to move across a membrane from an area of higher concentration to an area of lower concentration. Examples of passive transport include diffusion, osmosis, and facilitated diffusion.


What is the difference between passive and active tension in muscle contraction?

Passive tension is the force exerted on a muscle when it is stretched, while active tension is the force generated by the muscle when it contracts.