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What else can I help you with?
Water crosses plasma membranes through specialized channels?
Water crosses plasma membranes through specialized channels called diffusion and concentrated gradient.
Do aquaporins participate in active transport in a cell?
No, aquaporin's do not need a living cell in order to function. Aquaporin's are water channels that permit water channels to cross membranes.
What is pore protein?
Pore proteins are a type of membrane protein that form channels in cell membranes, allowing specific substances to pass through. These proteins play a crucial role in the regulation of nutrient uptake, waste removal, and cell signaling in various organisms. Examples include aquaporins for water transport and ion channels for ion movement.
Do hydrophilic heads on plasma membranes attract or reple water?
Hydrophilic heads on plasma membranes attract water. These heads are composed of polar molecules that interact with water molecules due to their similar polarity, allowing water to be attracted to and interact with the membrane.
What is the forcing of water and solutes through plasma membranes by blood pressure?
osmosis
Water crosses plasma membranes through specialized channels?
Water crosses plasma membranes through specialized channels called diffusion and concentrated gradient.
Do aquaporins participate in active transport in a cell?
No, aquaporin's do not need a living cell in order to function. Aquaporin's are water channels that permit water channels to cross membranes.
What is pore protein?
Pore proteins are a type of membrane protein that form channels in cell membranes, allowing specific substances to pass through. These proteins play a crucial role in the regulation of nutrient uptake, waste removal, and cell signaling in various organisms. Examples include aquaporins for water transport and ion channels for ion movement.
Do hydrophilic heads on plasma membranes attract or reple water?
Hydrophilic heads on plasma membranes attract water. These heads are composed of polar molecules that interact with water molecules due to their similar polarity, allowing water to be attracted to and interact with the membrane.
What is the forcing of water and solutes through plasma membranes by blood pressure?
osmosis
What kinds of substances do the protein channels allowed to cross membranes?
The protein channels (or carrier) allow substances that would not normally go through. These are larger molecules or ions.There are two kinds of transport protein:Channel Proteins which form a water-filled pore or channel in the membrane. This allows charged substances (usually ions) to diffuse across membranes. Most channels can be gated (opened or closed), allowing the cell to control the entry and exit of ions.Carrier Proteins which have a binding site for a specific solute and constantly flip between two states so that the site is alternately open to opposite sides of the membrane. The substance will bind on the side where it at a high concentration and be released where it is at a low concentration.
What are the principle components of plasma membrance and membrance surrounding cell organelles?
Phospholipids are the principle component behind plasma membranes and the membranes surrounding cell organelles. They create a hydrophobic (water repellent) boundary that keeps what's needed in and what's not, out.
Why does water require channels to be transported across the membranes?
Water doesn't require channels to be transported across membranes because water is small enough to slip past the membrane; however, some cells do have channels, called aquaporins, which greatly increase the rate that water passes through the membrane.
Do some membranes have proteins with chanels that allow for the passage of hydrophilic substances?
Yes, some membranes have protein channels called aquaporins that allow for the passage of hydrophilic substances like water across the membrane. These channels facilitate the movement of water molecules while excluding other substances.
Is the plasma memebrane a single-layered membrane?
No. Plasma membranes are a phospholipid bilayer with one end that likes water and one that is repelled by water. The phosphate portions are "heads" and line up on the outsides with the "heads" on the outsides.
What is the transmembrane protein channels that are specialized for the passage of water?
The transmembrane protein channels that are specialized for the passage of water is aquaporin's. Osmosis is the diffusion of water down its concentration gradient.
How water cross the plasma membrane?
I think it's cytoplasme, but I don't exactly know.
