Carrier proteins can be involved in passive transport.
passive
No, enzymes are catalyst proteins.
facilitated diffusion
Transport proteins such as ion channels and carrier proteins are used in both active and passive transport processes. Ion channels move ions down their concentration gradient through passive transport, while carrier proteins can facilitate passive transport by allowing molecules to move along their concentration gradient, or active transport by requiring energy to transport molecules against their concentration gradient.
Carrier proteins are sometimes used during passive transport.
cell membrane
Proteins that carry out passive transport include channel proteins and carrier proteins. Passive transport is "passive" because it does not use energy. The use of passive transport is also called "facilitated diffusion." Proteins that carry out passive transport includes the proton pump and the sodium-potassium pump; these require energy to function.
Active transport requires energy, unlike passive transport. The carrier proteins in active transport act as a "pump" ( fueled by ATP) to carry/attach themselfves to useful proteins for the cell.
yes
facilitated diffusion
Passive transport across a cell membrane is facilitated by proteins such as channel proteins and carrier proteins. These proteins allow the movement of ions and small molecules down their concentration gradient without requiring energy input from the cell. Lipid bilayer also plays a role in facilitating passive transport for small, non-polar molecules.
Carrier proteins facilitate passive transport of molecules across a membrane by changing its shape, by using ATP, to allow a substance to pass through the membrane.