0
What are membrane proteins that create a passageway across cell membrane?
Wiki User
∙ 11y ago
Channel proteins.
Wiki User
∙ 12y ago
Wiki User
∙ 11y agoAquaporins
Add your answer:
Earn +20 pts
When ions move across a plasma membrane what will happen?
they create a flow of electrical currrent that can disturb the resting membrane potential.
How do materials move through the cell membrane in facilitated diffusion?
In facilitated diffusion, materials move through the cell membrane with the help of protein channels or carriers. These proteins create a passageway or binding site for specific molecules or ions to pass through the membrane. The movement is passive and follows the concentration gradient, meaning that molecules move from an area of higher concentration to an area of lower concentration.
What type of molecules need more help to get through the membrane and What is help them?
Large or polar molecules typically need more help to get through the membrane. They rely on specialized transport proteins such as channels or carriers to facilitate their passage. These transport proteins create pores or binding sites that allow the molecules to cross the membrane.
What to substances control the movement of the materials into and out of the cell?
Some of the proteins and lipids do control movement of materials into and out of the cell.
What gives the cell membrane support?
The plasma membrane is made up of Phospholipids and Proteins.Phospholipids have a hydrophilic "head" and a hydrophobic "tail". They form into two layers each with the "head" pointing outwards and the "tail" inwards. This means that the hydrophobic "tail" does not have contact with water.This enables;lipid-soluble molecules to move into and out of the cellprevent water-soluble molecules entering or leaving the cellthe membrane to be flexibleThe proteins are arranged more randomly and and are embedded in the phospholipid bilayer in two ways:Extrinsic proteins are on the surface and only partly embedded in it. They provide structural support or act as cell receptorsIntrinsic proteins occur across the plasma membrane and act as carriers to transport water-soluble molecules across the membrane. Some are enzymes.These proteins provide;supporta mechanism to transport water-soluble molecules across the membranea mechanism to allow active transport to take place by forming ion channels for sodium and potassium (to create the sodium-potassium pump)The last point about allowing active transport to take place is probably the most important.
What are membrane proteins that create a passageway across cell membranes?
Aquaporins
What molecules create a double layer of the plasma membrane?
proteins and lipids.
When ions move across a plasma membrane what will happen?
they create a flow of electrical currrent that can disturb the resting membrane potential.
How do materials move through the cell membrane in facilitated diffusion?
In facilitated diffusion, materials move through the cell membrane with the help of protein channels or carriers. These proteins create a passageway or binding site for specific molecules or ions to pass through the membrane. The movement is passive and follows the concentration gradient, meaning that molecules move from an area of higher concentration to an area of lower concentration.
What type of molecules need more help to get through the membrane and What is help them?
Large or polar molecules typically need more help to get through the membrane. They rely on specialized transport proteins such as channels or carriers to facilitate their passage. These transport proteins create pores or binding sites that allow the molecules to cross the membrane.
What to substances control the movement of the materials into and out of the cell?
Some of the proteins and lipids do control movement of materials into and out of the cell.
What gives the cell membrane support?
The plasma membrane is made up of Phospholipids and Proteins.Phospholipids have a hydrophilic "head" and a hydrophobic "tail". They form into two layers each with the "head" pointing outwards and the "tail" inwards. This means that the hydrophobic "tail" does not have contact with water.This enables;lipid-soluble molecules to move into and out of the cellprevent water-soluble molecules entering or leaving the cellthe membrane to be flexibleThe proteins are arranged more randomly and and are embedded in the phospholipid bilayer in two ways:Extrinsic proteins are on the surface and only partly embedded in it. They provide structural support or act as cell receptorsIntrinsic proteins occur across the plasma membrane and act as carriers to transport water-soluble molecules across the membrane. Some are enzymes.These proteins provide;supporta mechanism to transport water-soluble molecules across the membranea mechanism to allow active transport to take place by forming ion channels for sodium and potassium (to create the sodium-potassium pump)The last point about allowing active transport to take place is probably the most important.
Which surgical term means to create a passageway between two organs?
Anastomosis
What molecules in membrane give them their specific function describe activities of one of these molecules?
Direct activities of the cell give the function of the cell membrane. Globular proteins create narrow passageways or channels. The nucleus directs the cell's functions.
What are the component's of a cellular membrane?
Phospholipids, cholesterol and proteins mostly. The phospholipids will create a bilayer with their hydrophobic tails facing each other and hydrophilic heads towards either the cytoplasm of the cell or the outside of the cell. Cholesterol contributes to the flexibility of the membrane and keeping the phospholipids from sticking to each other. Proteins either serve as transportation, receptors, or identification.
How is osmosis a special kind of diffusion?
Osmosis is the diffusion of water only. Osmosis occurs when water moves across a membrane in order to create an equilibrium.
Why is the cell membrane said to be a fluid mosaic?
Generally water and gases are described as fluid. In this context cell membrane is said to have a fluid mosaic model just because of it super flexible nature. Lipid bipolar molecules in the cell membrane can exhibit a flip flop movement. It can easily reseal after any breakage. So as fluid have an ease in changing their orientation likewise cell membrane posess a similar property. shankha LOL
