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Facilitated Diffusion
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How do glucose molecules cross a plasma membrane on the apical side of epithelial cells?
secondary active transport
Oxygen carbon dioxide glucose and other small molecules cross the plasma membrane through the process of?
i don't know u tell me
What large molecules are unable to cross the plasma membrane?
A process in which some substance are too large to pass through the membrane is endocytosis
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.
How easy or hard is it for polar molecules to pass through the cell membrane?
Polar molecules are effectively charged molecules. It's hard for them to cross the cell membrane because the membrane is comprised of an uncharged phospholipid bilayer. Charged molecules tend to have specific protein channels that allow them to cross the membrane.
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.
Why can oxygen easily cross the plasma membrane but sodium ions are unable to cross the plasma membrane?
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What molecules can freely cross the plasma membrane?
Proteins, Carbohydrates, and Cholesterol. (Check out, 'fluid mosaic')
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.
What properties does a selective permeable membrane have?
the ability to allow materials to cross a membrane
How does nitric oxide cross the plasma membrane?
Simple Diffusion
