a rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria. In the algae and higher plants, it consists mainly of cellulose.

the semipermeable membrane surrounding the cytoplasm of a cell

an insoluble substance that is the main constituent of plant cell walls and of vegetable fibers such as cotton. It is a polysaccharide consisting of chains of glucose monomers.

a simple sugar that is an important energy source in living organisms and is a component of many carbohydrates.

the tendency toward a relatively stable equilibrium between interdependent elements, esp. as maintained by physiological processes.

selectively permeable

semipermeable membrane, also termed a selectively permeable membrane, a partially permeable membrane or a differentially permeable membrane, is a membrane that will allow certain molecules or ions to pass through it by diffusion

any of a class of organic compounds that are fatty acids or their derivatives and are insoluble in water but soluble in organic solvents. They include many natural oils, waxes, and steroids.

a lipid containing a phosphate group in its molecule

tending to repel or fail to mix with water.

having a tendency to mix with, dissolve in, or be wetted by water

The 'cell membrane' is a biological membrane that separates the interior of all cells from the outside environment

a simple organic compound containing both a carboxyl (-COOH) and an amino (-NH2) group

any of a class of nitrogenous organic compounds that consist of large molecules composed of one or more long chains of amino acids and are an essential part of all living organisms

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Ch 17.2

Term	Definition
cell wall	a rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria. In the algae and higher plants, it consists mainly of cellulose.
cell membrane	the semipermeable membrane surrounding the cytoplasm of a cell
cellulose	an insoluble substance that is the main constituent of plant cell walls and of vegetable fibers such as cotton. It is a polysaccharide consisting of chains of glucose monomers.
glucose	a simple sugar that is an important energy source in living organisms and is a component of many carbohydrates.
homeostasis	the tendency toward a relatively stable equilibrium between interdependent elements, esp. as maintained by physiological processes.
selectively permeable	semipermeable membrane, also termed a selectively permeable membrane, a partially permeable membrane or a differentially permeable membrane, is a membrane that will allow certain molecules or ions to pass through it by diffusion
lipid	any of a class of organic compounds that are fatty acids or their derivatives and are insoluble in water but soluble in organic solvents. They include many natural oils, waxes, and steroids.
phospholid	a lipid containing a phosphate group in its molecule
hydrophobic	tending to repel or fail to mix with water.
hydrophilic	having a tendency to mix with, dissolve in, or be wetted by water
fluid mosiac model	The 'cell membrane' is a biological membrane that separates the interior of all cells from the outside environment
amino acids	a simple organic compound containing both a carboxyl (-COOH) and an amino (-NH2) group
protein	any of a class of nitrogenous organic compounds that consist of large molecules composed of one or more long chains of amino acids and are an essential part of all living organisms

Created by: Austenkelsall

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