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What proteins open or close to regulate passage of materials through cells?
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Why is it important for the cell membrane to allow materials to enter and leave the cell?
Cell membranes regulate several materials that enter the cell. Cell membranes regulate proteins, as well as other materials that enter or leave the cell.
Passage of materials through villi into the blood?
passage of materials through villi intothe blood
What is cancer what causes it and how is it related to the cell cycle.?
Cancer is a disease of cells causing uncontrolled cell division. Certain proteins are a control system that regulate passage through a restriction point. This means that once the cell division cycle begins it will continue to the end.Altered regulation of expression of at least one protein (cyclin) as well as mutations of several proteins that regulate passage through the restriction point can be cancer producing.
Is a cell membrane invironment?
The cell membrane is somewhat of an environment.. cell membranes have many proteins inside them.. the proteins regulate the cell structure, allow cell-cell interaction, and allow passage of materials through the membrane. There also steroids in the membrane that regulate its shape.. and there are also various sugars / glycoproteins in the membrane. Also, one important thing to realize is that the inside of the cell membrane is NON polar.. the outside is polar however.
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
What materials and proteins are transported through through the cells?
By the chromosomes
What makes proteins and transports materials?
ribosomes make proteins and the endoplasmic reticulum transports materials through the cell
What materials and proteins are transported through the cells by the?
By the chromosomes
What Materials and proteins are transported through the cell's by the?
By the chromosomes
Materials and proteins are transported through the cells by the what?
By the chromosomes
How do most materials etner cells?
Through proteins in the membrane.
What proteins move need substances or waste materials through the plasma membrane?
transport proteins
