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Cells Review

Organelles and terms to study for Cells Test!

unicellular an organism made of one cell (ex- bacteria)
multicellular an organism composed of more than one cell
cell the basic unit (of structure and function) in living things
organelle a tiny cell structure or part that carries out a specific job in the cell
cell wall a strong or rigid layer that surrounds the cells of plants; provides shape, support, and strength
cell membrane a cell part that controls which substances can enter or leave the cell
nuclear membrane protects the nucleus and allows materials to pass into and out of the nucleus
nucleus directs and controls all cell activity
chromosomes contain the DNA or genetic material
nucleolus where ribosomes are made
ribosome where proteins are made
endoplasmic reticulum (E.R.) passageways that carry or transport protein and other materials from one part of the cell to another
golgi bodies receive proteins and other materials and packages them, and distributes them to other parts of the cell
mitochondria an organelle that uses food molecules and changes it into energy for the cell to use
chloroplasts found only in plant cells that captures energy from the sun to be used in photosynthesis
vacuole stores food, water, and wastes in a cell; it is larger in plant cells
lysosome this is found only in animal cells; contains chemicals to help break down food and old cell parts
centrosome found only in animal cell; organelle that helps in cell division
cytoplasm gel-like fluid that holds other organelles
water this is not an organelle but cells need this for chemical reactions to occur, to move substances around, to regulate temperature, and to maintain size and shape
tissue a group of similar cells that work together to do a specific function or job
organ different kinds of tissue that work together to perform a function
organ system groups of organs that work together to perform a major function
First you have a cell...then cells come together to form a tissue...then tissues come together to form... an organ ....organs come together to form organ systems
Created by: jlodico