ATP is needed for these two transport mechanisms to occur.
No energy is needed because it's a part of passive transport, not active transport.
The main difference is that diffusion does not require energy and active transport does require energy. Just for the record diffusion has a concentration that moves from high to low, and active transport has a concentration that moves from low to high. (Hope this helps to answer your question!)
Active transport is the movement of molecules across a membrane requiring energy to be expanded by the cell. ACTIVE TRANSPORT REQUIRES ENERGY. Passive transport is diffusion across a membrane requiring only random motion of molecules with no energy expanded by the cell. PASSIVE TRANSPORT REQUIRES NO ENERGY.
It's either diffusion, osmosis or active transport. More information is needed to answer the question fully.
transport proteins
Active transport is needed to move molecules from an area of low concentration to an area of higher concentration against their concentration gradient. ATP is used as the power source.
Microvilli increase the surface area of the cell membrane, allowing for more transport proteins to be present to facilitate active transport of molecules against their concentration gradient. Mitochondria provide the energy in the form of ATP needed to power the active transport process.
Small molecules can successfully traverse the cell membrane through processes such as passive diffusion, facilitated diffusion, and active transport. Passive diffusion allows molecules to move across the membrane without the need for energy, while facilitated diffusion involves the assistance of transport proteins. Active transport requires energy to move molecules against their concentration gradient. These mechanisms enable small molecules to enter or exit the cell as needed.
Diffusion is the process in which a certain substance achieves equal concentrations in a specific area. Diffusion across a membrane means that the substance is equally distributed between both sides of the membrane, assuming the substance can pass through that membrane (the membrane is permeable to the substance).Active transport is just that, active. It requires energy because it is usually moving substances to a place where they would not naturally move or increases the rate of their disbursing. Active transport can move molecules against a concentration gradient, whereas diffusion cannot.Simply, active transport means that energy is needed to transport the object/molecule while diffusion is a naturally occurring process dependent on the concentration gradients between the membrane.
false
Making a cup of tea involves diffusion, which is the passive movement of particles from an area of high concentration to an area of low concentration. Osmosis is the diffusion of water across a selectively permeable membrane, which is not directly involved in making tea. Active transport involves the movement of particles against a concentration gradient and requires energy, which is not typically needed for making tea.
In active transport, the molecules are carried against the force of diffusion. This is the opposite of facilitated transport. Also in active transport, energy in the form of ATP is required, since the molecules move against the normal flow. Note that energy is not needed in facilitated transport. Bard, Susan, Mary Alice Jost. Multimediated Lectures in Biology. Seventh Edition. Howard Community College, MD. 2003. ---------------------------------------------------------------------- *Active transport: Transport of molecules AGAINST the concentration gradient with the use of a PROTEIN CARRIER. This uses ATP. Facilitated transport: Moving of molecules through a semi permeable membrane witht he use of the cell's "facility's" AKA Protein carriers or Channels. *Gowda, Vishal. 10th Grade AP Biology Student. How about that? 2008 son!