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Why is it easier to move materials across membranes down a concentration gradient?
Wiki User
∙ 11y ago
osmotic pressure
Wiki User
∙ 11y ago
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What is the transport of materials against a gradient and requiring energy?
Active transport is the process of moving materials against a concentration gradient and requiring energy. It uses ATP (adenosine triphosphate) to pump ions or molecules across a cell membrane, creating a higher concentration on one side compared to the other. This process is important for maintaining cell homeostasis, regulating ion levels, and transporting nutrients across cell membranes.
Why urea can't cross membranes?
Passive diffusion - Urea has its own concentration gradient so it will go from an area of high concentration through the cell membrane into an area of lower concentration.
What facilities passive transport across a cell membrane?
concentration gradient.
Which term describes the difference in the substance across a cells membrane?
Concentration Gradient.. :)
What does it means if a substance moves down its concentration gradient?
If a substance moves down its concentration gradient, it means that it is moving from an area where it has a high concentration to an area where it has a low concentration. This is known as diffusion.
What is the difference in the concentration of a substance across a space is called concentration?
Concentration Gradient
A non-energy requiring process that moves materials across a cell membrane with the concentration gradient.?
The process of moving materials across the cell membrane without the expenditure of energy is called passive transfer
The difference in concentration of a substance across space is called a?
it is called a concentration gradient.
What is the transport of materials against a gradient and requiring energy?
Active transport is the process of moving materials against a concentration gradient and requiring energy. It uses ATP (adenosine triphosphate) to pump ions or molecules across a cell membrane, creating a higher concentration on one side compared to the other. This process is important for maintaining cell homeostasis, regulating ion levels, and transporting nutrients across cell membranes.
Which transport mechanisms moves materials across a plasma membrane against an apparent concentration gradient?
active transport
Ions diffuse across membranes down their what?
Its an active transport and use sodium channel generally _____ Diffusion is itself a pathway of travel across a cell membrane. Diffusion can be "simple diffusion" which is simply an ion moving across the membrane anywhere, or "fascilitated diffusion", where an ion moves across the membrane in a specific channel. Either way, diffusion involves the movement of that ion along its concentration gradient and requires no energy. Active transport is not the same as diffusion. Active transport requires energy.
The transport of a substance across the cell membrane against its concentration gradient is called what?
The transport of a substance across the cell membrane against its concentration gradient is called active transport.
What is a demonstration to show active transport?
Active transport is when cells must move materials in a direction against a concentration gradient. Proteins transporting molecules across cell membranes is an example. Active transport requires energy as opposed to passive transport
Which term describes the difference in the concentration of a substance across a cells membrane?
concentration gradient
What does concentration gradient have to do with diffusion of substances across the cell membrane?
concentration gradient moves from high to low until equilibrium is reached.
What is the transport of materials against a concentration gradient called?
The process of moving materials against a concentration gradient is called active transport. Active transport generally uses a protein pump to move molecules from an area of low concentration to an area of high concentration; in order to perform an active transport, the cell must use some of its energy to initiate the reaction.
What term describes the difference in the concentration of a substance across a cell membrane?
concentration gradient
