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Integral proteins - proteins which span the width of the membrane.
This can be things such as channels and pumps.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoDiffusion.
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What is pore protein?
integral protein that embedded to the plasma membrane. Allow small substances to cross the plasma membrane.
What depends on a molecule that can cross the plasma membrane?
The Gonhiqule depends on a molecule and cross the plasma membrane in an animal cell, but is a different story for the plant cell because of the cell wall.
How does nitric oxide cross the plasma membrane?
Simple Diffusion
What is cell membrane permeability?
It is the ability of the membrane to allow ions and/or particles to cross.
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 pore protein?
integral protein that embedded to the plasma membrane. Allow small substances to cross the plasma membrane.
Why can oxygen easily cross the plasma membrane but sodium ions are unable to cross the plasma membrane?
Gh
Is an ability of a plasma membrane to allow some substance to cross across the membrane more easily than others?
selective permabiltiy
What properties does a selective permeable membrane have?
the ability to allow materials to cross a membrane
What depends on a molecule that can cross the plasma membrane?
The Gonhiqule depends on a molecule and cross the plasma membrane in an animal cell, but is a different story for the plant cell because of the cell wall.
What type of membrane allows some but not all materials cross?
A selectively permeable membrane allows SOME but not ALL materials to cross.
How do glucose molecules cross a plasma membrane?
Facilitated Diffusion
How does nitric oxide cross the plasma membrane?
Simple Diffusion
Ions cannot cross back and forth across the neuron cell membrane?
Water diffuses across the plasma membrane, and this can affect cell size and .... proceeds, the different type cells of the embryo develop their ... or ion so that it can cross the plasma .... molecules cannot cross the membrane because they are un- able to ... plasma membrane and the back and forth arrows indicate that these.
What are the compounds find it difficult to cross the plasma membrane?
lipid and protien
What is the definition of impermeable?
A membrane that lets all materials cross is permeable. A membrane that lets nothing cross is impermeable.
What process does oxygen and carbon dioxide use to cross the plasma membrane?
diffusion
