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mrs. hobsons class test 7th grade
all cells come from existing cells, all orginisms live up of one or more cells,a cell is the basic unit of living things.
a rigid structure that surrounds the cell membrane and provides support to the cell
thin, flexible barrier around a cell; regulates what enters and leaves the cell
a jellylike fluid inside the cell in which the organelles are suspended
the organelles in which nutrients are converted to energy
organelles that package cellular materials and transport them within the cell or out of the cell
cell organelle filled with enzymes needed to break down certain materials in the cell
a part of the cell containing DNA and RNA and responsible for growth and reproduction
The double membrane that seperates the nucleus from the cytoplasm
The movement of materials through a cell membrane without using energy
the movement of materials through a cell membrane using energy
process by which molecules tend to move from an area where they are more concentrated to an area where they are less concentrated
diffusion of molecules through a semipermeable membrane from a place of higher concentration to a place of lower concentration until the concentration on both sides is equal
a process by which plants change light energy from the sun and use it to make sugar
cells that do not have a nucleus
cells that have a nucleus
cingle celled orginisms
doesnt have a nucleus but does have DNA and RNA
A protien network inside the cell that gives animal celltheir shape
a cell structure that forms a maze of passageways in which proteins and other materials are carried from one part of the cell to another
organelles that capture the energy from sunlight and convert it into chemical energy in a process called photosynthesis
is green pigment in chloroplasts
small membrane-bound sac that functions in moving products into, out of, and within a cell
(biology) the basic structural and functional unit of all organisms