WebFacilitated diffusion - Molecules move down their concentration gradient. Active transport - Molecules move against their concentration gradient. Requires energy (ATP). Both - Carriers are specific for the structures for individual molecules. Molecules move through a protein carrier in the membrane. Facilitated Diffusion WebAlthough it is a passive facilitated transport but it does not require the direct chemical energy from the hydrolysis of ATP in the transport step, rather, ions and molecules move down their concentration gradient to show its diffusive nature. Facilitated diffusion is different from free diffusion in several ways:- 1.
Chapter 3 Flashcards Quizlet
WebIn facilitated diffusion, molecules diffuse across the plasma membrane with assistance from membrane proteins, such as channels and carriers. A concentration gradient exists for these molecules, so they have the potential to diffuse into (or out of) the cell by moving … WebThe process that involves membrane protein carriers to transport glucose or amino acids across the cell membrane down a concentration gradient is called _________ _________. facilitated diffusion __________ is a passive mechanism of transport allows for the movement of water across the membrane to areas of impermeable solute. osmosis the great sage restaurant clarksville md
Chapter 5 Flashcards Quizlet
WebC) The concentration gradient is the driving force. D) Proteins are needed to transport molecules across the membrane. D) Passive transport. Diffusion does not require the cell to expend ATP. Therefore, diffusion is considered a type of A) Endocytosis. B) Active transport. C) Exocytosis. D) Passive transport. WebThey are directly using ATP to transport things against their concentration gradient, which is why we call it active transport. Now, because you have these concentration gradients, or these electrochemical gradients are established, those can be used to do other forms … WebDec 24, 2024 · A concentration gradient exists that would allow ions and polar molecules to diffuse into the cell, but these materials are repelled by the hydrophobic parts of the cell membrane. Facilitated diffusion uses integral membrane proteins to move polar or … the great sage restaurant