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12 Cards in this Set

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  • Back
Structural carbohydrate made of long chains of glucose molecules. Cellulose molecules twist together to make strong fibres. The cell wall is made of cellulose.
Describes a molecule that is water loving. Cellulose is hydrophilic as are the phosphate heads of the cell membrane.
Describes a molecules that is water hating. The inside lipid bilayer of the cell membrane is hydrophobic.
Fluid mosaic model
Theory used to describe the structure of the plasma membrane. It is fluid as phospholipid bilayer is constantly moving. It is a mosaic because the proteins are scattered in a patchy arrangement.
Plasma Membrane
Outer barrier of an animal cell. Inner barrier of a plant cell. Controls the transport of molecules into and out of the cell. It is both porous and fluid.
Cell Wall
Part of a plant cell that is made of cellulose and provides a rigid structure. The cell wall is also a bit elastic which allows it to stretch when water is absorbed.
Phospholipid Bilayer
The main component of the cell membrane. There are two opposing layers of phospholipid molecules.
Molecule consisting of a hydrophilic head, which forms the outer part of the membrane and a hydrophobic tail which forms the inner part of the cell membrane.
Membrane surface protein that has carbohydrate addition. Often these a used as cell surface markers called antigens.
Receptor Proteins
Membrane surface proteins that act as receivers for hormones or antibodies.
Channel Protein
Transmembrane protein that makes the cell membrane porous and allows the movement of substances across the membrane.
Integral Protein
Transmembrane protein that has a supporting function.