Which of these statements describes what occurs in facilitated diffusion?
Which of these statements describes what occurs in facilitated diffusion? –Facilitated diffusion requires energy from the cell to drive a concentration gradient.
Which of the following is true regarding facilitated diffusion?
The correct answer is C. facilitated diffusion involves movement that is passive and down a concentration gradient.
Which of the following is an example of facilitated diffusion?
A common example of facilitated diffusion is the movement of glucose into the cell, where it is used to make ATP. Although glucose can be more concentrated outside of a cell, it cannot cross the lipid bilayer via simple diffusion because it is both large and polar.
Where Does facilitated diffusion occur?
the plasma membrane
In 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 down it.
Which of the following statements tells how facilitated diffusion differs from simple diffusion?
Which of the following statements tells how facilitated diffusion differs from simple diffusion? Particles tend to move more slowly than they would be expected to move.
What is facilitated diffusion in microbiology?
facilitated diffusion: The spontaneous passage of molecules or ions across a biological membrane passing through specific transmembrane integral proteins. membrane protein: Proteins that are attached to, or associated with the membrane of a cell or an organelle.
Which of the following is an example of facilitated diffusion quizlet?
Which of the following is an example of facilitated diffusion? water moves out of the cell passing through channel proteins in the cell membrane.
Which of the following are facilitated diffusion channels?
A transport protein completely spans the membrane, and allows certain molecules or ions to diffuse across the membrane. Channel proteins, gated channel proteins, and carrier proteins are three types of transport proteins that are involved in facilitated diffusion.
What is facilitated diffusion quizlet?
Facilitated Diffusion. the movement of specific molecules across cell membranes through protein channels. Not exactly diffusion because it’s a type of passive transport. Transport Proteins. protein molecules that help to transport substances throughout the body and across cell membranes.
What is facilitated diffusion in anatomy and physiology?
Facilitated diffusion (also known as facilitated transport or passive-mediated transport) is the process of spontaneous passive transport (as opposed to active transport) of molecules or ions across a biological membrane via specific transmembrane integral proteins.
What is facilitated diffusion in small intestine?
What is needed for facilitated diffusion quizlet?
What is required for facilitated diffusion to take place? Unlike simple diffusion, facilitated diffusion requires energy expenditure by the cell. Facilitated diffusion requires a specific transporter for a specific molecule.
How is facilitated diffusion different from diffusion quizlet?
What is the difference between diffusion and facilitated diffusion? Diffusion is the driving force behind the movement of many substances across the cell membrane. … Facilitated diffusion is where molecules cannot directly diffuse across the membrane pass through special protein channels.
What is facilitated diffusion is it active or passive quizlet?
Facilitated diffusion is passive transport moves high to low.no energy.
Why is facilitated diffusion necessary quizlet?
When is facilitated diffusion necessary? When the required direction of transport is opposed to concentration levels, a cell expend energy to force across its membrane. The concentration of Na+ within a cell is required to be than the external concentration.
What is facilitated diffusion Quizizz?
Facilitated Diffusion is the movement of LARGE and POLAR molecules across the cell membrane with the help of Integral Proteins. True.
What Does facilitated diffusion across a cell membrane require quizlet?
The movement of particles through a membrane against the concentration gradient with the expenditure of energy. Requires protein carrier. … The movement of a large molecule or large quantity of molecules into a cell without passing between phospholipid molecules or through transport proteins. Requires energy.