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What are the special structures in the cell membrane that allow materials such as water and sugar through made of?
PROTEIN!!!!!!!!!!!!!!!!!!!!!!!!!
What kind of permeablilty is it when a membrane only allows some materials to pass?
yes, they only allow water moleclues to pass through the membrane.
Materials essential to life processes move across a cell membrane through a variety of methods What cell membrane structure allows water-soluble materials to be passively transported to the cytoplasm?
Protein channels known as aquaporins allow water molecules and other water-soluble materials to pass through the cell membrane via passive transport. Aquaporins form water channels that regulate the flow of water across the membrane, facilitating the movement of essential molecules into the cell.
How are the materials exchanged between adjacent cells in the plant body?
The cell membrane (a ring around the cell that provides protection and in the animal cell's case, shape) controls the movement of materials in and out of the cell, but in the plant cell's case, the cell wall ,which is thicker than the cell membrane and outside of it, does more of the work. It also has canals that allow fluids to move through the plant.
How does the structure of the plasma membrane allow materials to move across it in both directions?
The structure of the plasma membrane consists of the phospholipid bilayer, which gives it a fluid structure, and not rigid, allowing the materials ease to pass through. Next, there are also integral proteins which can be thought of as 'tunnels', allowing the materials to come in and out. Then, there are peripheral proteins which also aid in getting the materials inside an out. On the cell membrane, there are receptors which recognize outside materials, and if they are really big, the cell engulfs these molecules through endocytosis [pinocytosis, and phagocytosis, which are basically for liquid molecules, and solid molecules]. This takes us back to the fluidity of the cell membrane. That's roughly how the cell membrane allows for the entering and exiting materials.
What is the ability of a cell membrane to allow materials to pass through?
permeability
What is the abillity of a membrane to allow materials to pass through called?
permeability
What are the special structures in the membrane that allow materials as water and sugar to pass through made of?
Membrane transporter.
What is the ability of a cell membrane to allow materials to pass through it is called?
permeability
What is the ability of a cell membrane to allow materials to pass through called?
permeability
What are the special in cell membrane that allow materials such as water and sugar to pass through made of?
proteins
What are special structures in the cell membrane that allow materials such as water and sugar pass through made of?
PROTEIN!!!!!!!!!!!!!!!!!!!!!!!!!
What is the ability of a cell membrane to allow materials to pass through it ca surrounded by a semipermeable membrane What would happen if this layer were permeable to most substances?
The ability of a cell membrane to allow materials to pass through selectively is called permeability. If the cell membrane were permeable to most substances, it would lead to unregulated flow of molecules in and out of the cell, disrupting cellular processes and potentially causing cell damage or death.
What are the special structures in the cell membrane that allow materials such as water and sugar through made of?
PROTEIN!!!!!!!!!!!!!!!!!!!!!!!!!
What is the nuclear pore used for?
The nuclear pores are tiny holes in the the nuclear membrane surrounding the nucleus of a cell, which allow the movement of solluable materials through the nuclear membrane, in and out of the nucleus.
What in a cell membrane allow materials to enter and exit the cell?
Glycoproteins form channels which sustrates and larger molecules can pass through.
What are the functions of a plasma membrane?
- Outer membrane of cell that controls cellular traffic- Contains proteins (left, gray) that span through the membrane and allow passage of materials- Proteins are surrounded by a phospholipid bi-layer
