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What kind of transport is used by a cell membrane to speed up the intake of glucose when needed?
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∙ 13y ago
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∙ 13y ago
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Why do cells need carriers proteins that transport glucose?
Large molecules, such as glucose, are not able to pass through the cell membrane. Therefore proteins are needed to transport them across.
Mitochondria are needed for the cell to transport glucose across the cell membrane into the blood what is the method that the cell uses to do this?
Respiration is the name of the process Mitochondria use.
What type of transport does a small molecule enter a cell with help from a membrane protein additional energy is needed to complete this process?
Facilitated
When is active transport needed?
When large materials are being transported through the membrane
What has to be present for Pyruvate to enter the mitochondria?
The mitochondrial membrane has special transporter proteins which are needed to transport pyruvate. This transport also requires ATP.
Why do cells need carriers proteins that transport glucose?
Large molecules, such as glucose, are not able to pass through the cell membrane. Therefore proteins are needed to transport them across.
Mitochondria are needed for the cell to transport glucose across the cell membrane into the blood what is the method that the cell uses to do this?
Respiration is the name of the process Mitochondria use.
What Transport mechanism is used to remove glucose filtrate the enery needed for that purpose?
Active Transport
How is passive transport different then active transport?
An example of passive transport would be the process of osmosis (water diffusing between a membrane-- from an area of high concentration to an area of low concentration). It is known as passive transport because no energy is needed in order to move the water across the membrane. When no energy is needed to move the substance it is considered passive transport. On the other hand, when energy IS needed to transport molecules or substances across a membrane it is referred to as active transport. An example of this would be a calcium pump located in the lipid bilayer of a plasma membrane which can transport potassium (K+) ions across it. Energy is needed in order to move those potassium ions across the membrane, and therefore is referred to as active transport.
What type of transport does a small molecule enter a cell with help from a membrane protein additional energy is needed to complete this process?
Facilitated
When is active transport needed?
When large materials are being transported through the membrane
What has to be present for Pyruvate to enter the mitochondria?
The mitochondrial membrane has special transporter proteins which are needed to transport pyruvate. This transport also requires ATP.
Gas needed for electron transport chain?
The "gas" needed for the electron transport chain is Hydrogen. In the electron transport chain its not Hydrogen gas H2 but a Hydrogen Ion H negative that flows across the membrane to produce engery.
How would sugar entering a cell that already contains a high concentration of sugar get through a cell membrane and into the cell?
Glucose (sugar) enters the cell through facilitated diffusion, which is the movement of particles from an area of high concentration to an area with low concentration through a protein channel. This happens passively (on its own, with no extra energy required).It does not matter what other particles are in the cell--- the GLUCOSE will enter it so long as there is a higher concentration of GLUCOSE outside the cell than inside.The protein channel is needed because glucose molecules are too large to pass through the cell membrane by simple diffusion.
How does nutrients cross plasma membrane?
Things like oxygen, CO2 and lipids cross the membrane with simple diffusion. Water can cross the membrane with osmosis when the water moves through a channel protein in the plasma membrane. Glucose, potassium, sodium etc. moves through a carrier protein in the membrane with the process of active movement. In the process of active movement energy is needed and it is given by the glucose or ATP from the cell.
What is the movement of materials through the membrane called?
It's either diffusion, osmosis or active transport. More information is needed to answer the question fully.
A small polar molecule enters a cell with help from a membrane protein. No additional energy was needed to complete this process. What type of transport is this?
Facilitated
