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The carrier protein changes shape , shielding the molecule from the interior of the membrane.

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Skylar Hagenes

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3y ago

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How do carriers proteins facilitate passive transport of molecules across a membrane?

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.


What transports substance in and out of cells?

Proteinscell membrane


How. do carriers proteins transport substances across cell membranes?

Carrier Proteins transport molecules from an area of higher concentration on one side of the membrane to an area of lower concentration on the other side.


How do carrier proteins recognize substances to transport in active transport?

substance to pass


What is carrier-assisted transport?

Carrier-assisted transport is a mechanism in which a carrier molecule assists in the movement of a substance across a biological membrane. The carrier molecule can bind to the substance and facilitate its transport across the membrane. This process is typically passive and does not require energy input from the cell.


The carrier proteins that help in facilitated diffusion are what kind of proteins?

The carrier proteins that aid in facilitated diffusion are integral membrane proteins. These proteins are embedded within the cell membrane and undergo conformational changes to transport molecules across the membrane.


Which type of transport requires assistance from membrane proteins?

Active transport requires assistance from membrane proteins. These proteins, such as ion pumps and carrier proteins, help move molecules against their concentration gradient, requiring energy input to drive the process.


Are carrier proteins active or passive transport?

Carrier proteins facilitate active transport by moving molecules or ions across a cell membrane against their concentration gradient. They require energy in the form of ATP to transport substances across the membrane.


What are the protein molecules in a cell membrane that assist in cell transport?

Protein molecules are responsible for membrane transport. In passive transport diffusion is the phenomenon in which molecules flow naturally from areas of high concentration to lower concentrations.


Through what type of proteins does active transport occur?

Active transport occurs through carrier proteins that pump molecules against their concentration gradient using energy from ATP. These carrier proteins undergo conformational changes to transport molecules across the cell membrane.


What substance do the carrier proteins transport across the inner mitochondrial membrane?

Carrier proteins transport various substances across the inner mitochondrial membrane, primarily including metabolites such as pyruvate, fatty acids, and adenosine nucleotides. Notably, the mitochondrial pyruvate carrier facilitates the transport of pyruvate into the mitochondria for energy production. Additionally, the adenine nucleotide translocator (ANT) exchanges ADP and ATP across the membrane, playing a crucial role in cellular energy metabolism.


Which form of transport across the cell membrane does not require energy but a carrier protein?

Facilitated diffusion does not require energy but relies on carrier proteins to transport molecules across the cell membrane. The carrier proteins assist in the movement of specific molecules down their concentration gradient.