BIOLOGY CHAPTER 4 CARDS

the process of transporting substances into the cell

one of several modes of transport that require the cell to extend energy in order to move molecules across the membrane

protein channels within membranes that allow molecules to move across the cell membrane

the process of making molecules by using absorbed molecules

the barrier around all cells which protects them from the outside world

the theory that cells are the basic units of structure and function for all life

a protective layer that surrounds the cell membrane.

the difference in concentration of molecules on one side of a membrane as compared to the other side.

the study of cells

the jelly like fluid that fills the inside of the cell

the movement of molecules from an area of higher concentration to an area of lower concentration

the way a cell takes in and processes substances of molecules

the process that cells use to get rid of non soluble waste products

the process which uses vesicles to transport substances into a cell

the state of being equal if even

cells that contain a nucleus and membrane bound organelles

the process that cells use to rid themselves of soluble waste products.

the process used to get substances out of a cell using vectisles

a model that shows how the molecules of the cell membrane interact and behave

openings in the cell membrane, created by transmembrane proteins, which allow certain ions to pass through.

molecules which do not dissolve in water

molecules which dissolve in water

a solution whose concentration has a higher concentration of solute than the cytoplasm

a protein that is embedded in the cell membrane

the ability of a cell to sense and respond to the environment

a solution whose concentration of solute is the same as the cytoplasm

the two layer orientation f the cell membrane made up of the lipid molecules

the ability to move all that cells have whether on a small or large scale

organisms that are composed of two or more cells

the area of prokaryotic cell where dna is found

units inside all cell which have a common function

the cellular process to release biosynthetic substances that are to be used by other cells

The property of a membrane to allow certain substances to pass across it

cells with the same functions which congregate together

organisms the are composed of only one cell

the pinched off part of a cell membrane containing a substance that has entered the cell

what are ribosomes

what re unicellular organisms

eukaryotic cell have a nucleus and prokaryotic cells do not

whenever cells come together to make tissue what else do they make