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What are 2 processes used to move macromolecules and food particles across the cell membrane?
Wiki User
∙ 11y ago
Osmosis moves water (only) on a concentration gradient, from a high concentration to a low concentration.
Active trasnport is the forced movement of chemicals via particular proteins which move when TCP is near.
Wiki User
∙ 14y ago
Wiki User
∙ 12y agowell i know that a cell membrane is a part of both cells plant and animal so i would have to say yes to my reclimax prediction of prosculiar choice u kno wat i aint gon lie idk dont read dat lol
Wiki User
∙ 12y agoThe two major methods are active uptake and diffusion. In diffusion, the molecules move from a place with high density to a place with lower density, while in active uptake the opposite happens. But the last one requires energy.
Wiki User
∙ 11y agoThere are many multiple "processes" that involve movement of nutrients across a membrane. Two basic types are Active and Passive movement across the membrane. In Active a cell uses ATP to transport more nutrients into the cell. Passive allows the nutrients to flow into the cell because, there are more outside. The "process" you are most likely meaning is Diffusion and Osmosis. Diffusion is the the passive process that allows the molecules into the cell. Osmosis is the act of water being brought into the cell which can be both active and passive.
Wiki User
∙ 11y agoendocytosis and exocytosis
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Is it from high concentration to low that particles move across a membrane move?
Yes. It is called Osmosis. Particles move across the membrane in order to balance the concentration of particles on both sides of the membrane. Since the membrane tends to block the larger particles, its the smaller molecules that move, so what happens across membranes is that the motion (of say water) is from low concentration toward higher - but the result is to even the concentration on both sides of the membrane, Pure diffusion is always from higher concentration to lower.
What channel can help move things across the membrane?
Protein channels help move particles across the cell membrane
When will water and solutes stop moving across a membrane?
Particles in a given medium stop moving across the membrane during diffusion when a state of equilibrium is reached, that is when the number of particles on either side of the membrane equalizes.
The movement of water across a membrane is termed?
it is called osmosis and it is the net movement of water particles across a semi-permable membrane against the concentration gradient!
Why do dissolved particles on one side of the membrane result in the diffusion of water across the membrane?
Dissolved particles on one side of the membrane results in the diffusion of water across the membrane due to the need to have the same solution concentration on both sides of the membrane. Water will diffuse from a hypotonic solution to a hypertonic solution.
Which one moves faster across the cell membrane the large or the small?
Small particles move faster across the membrane.
What are three macromolecules that cannot diffuse across a cell membrane?
Any protein, any fat, and most polypeptides.
What are the processes involved in moving substances across the cell membrane?
Diffusion
In osmosis which membrane provides net movement of water without movement of NaCl?
Osmosis across a selectively permeable membrane allows water across but disallows other particles across the membrane.
What is the purpose of transport for proteins?
Carrier proteins are proteins involved in the movement of ions, small molecules, or macromolecules, such as another protein, across a biological membrane. Carrier proteins are integral membrane proteins; that is, they exist within and span the membrane across which theytransportsubstances.
What motion of particles across a membrane requires energy?
Movement across a membrane that does require energy is called active transport.
Is it from high concentration to low that particles move across a membrane move?
Yes. It is called Osmosis. Particles move across the membrane in order to balance the concentration of particles on both sides of the membrane. Since the membrane tends to block the larger particles, its the smaller molecules that move, so what happens across membranes is that the motion (of say water) is from low concentration toward higher - but the result is to even the concentration on both sides of the membrane, Pure diffusion is always from higher concentration to lower.
If there is more solute inside a membrane than outside solute particles will move across the membrane to the?
Concentration Gradient
What happens if the particle is too large to get across the membrane?
The cell use something called a protein channel that helps larger particles across the cell membrane.
What channel can help move things across the membrane?
Protein channels help move particles across the cell membrane
Particles moving across a cell membrane without using energy?
Diffusion and Osmosis
What is the process of moving particles across the plasma membrane?
well that depends on how long or tall it is!
