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Any form of passive transport such as diffusion.
This is because channels allow a high concentration gradient move to a lower one.
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∙ 12y ago
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Which process requires energy to bring molecules across the cell membrane?
active transport
What ways of moving molecules across a membrane requires energy?
Active Transport.
What motion of particles across a membrane requires energy?
Movement across a membrane that does require energy is called active transport.
How simple diffusion can be distinguished from facilitated diffusion?
simple diffusion transports smaller molecules like oxygen and water while facilitated diffusion transports larger molecules like glucose and requires energy
Is this correct no energy is required for the movement of water molecules across the cell membrane?
No
Which process requires energy to bring molecules across the cell membrane?
active transport
What ways of moving molecules across a membrane requires energy?
Active Transport.
Active transport is the process of what?
Active transport is the process of molecules being moved across a membrane using energy. Passive transport moves the molecules without using energy.
What is the difference between passive and active transport across the cell membrane?
Wouldn't it be that active transport requires enegry and passive doesn't? Passive transport occurs when the concentration of something on one side of membrane is different from the concentration on the other side. It occurs when that substance can pass through the membrane, and always in the direction of more -> less. No energy is required to make the substance move; in fact, this movement generates energy. This is like rolling a rock down a hill--it just does it on its own. Active transport occurs in the opposite direction, from less -> more. It requires energy for transport. This is like rolling a rock up a hill--you have to push it the entire way! Both involve the transport of a substance across a membrane, and the change in concentrations on different sides of a membrane. Both are also important to the proper functioning of a cell. Active transport requires energy, but passive transport requires none. Active transport requires a special protein to make the transport occur, but passive transport requires none.
If transport of molecules across the membrane requires energy is it active transport?
That's right... If it doesn't require energy it is passive. Take note of the key word 'active' which tells you it requires energy. But you should have a basic understanding of the main ways molecules cross the plasma mebrane
Describe several ways molecules are moved across a plasma membrane?
Diffusion, osmosis, facilitated transport and active transport- which requires energy to work.
What motion of particles across a membrane requires energy?
Movement across a membrane that does require energy is called active transport.
Which process requires cellular energy to move molecules across the cell membrane from a region of lower concentrations to a region of higher concentration?
You are describing active diffusion.
How simple diffusion can be distinguished from facilitated diffusion?
simple diffusion transports smaller molecules like oxygen and water while facilitated diffusion transports larger molecules like glucose and requires energy
Is this correct no energy is required for the movement of water molecules across the cell membrane?
No
What requires no energy to move things across the cell membrane?
ginger kids
What is it called when sugars pass across the membrane that requires the use of energy?
active transport
