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8th Grade Science #4

Texas TAKS review for 8th Grade Science-Cells

QuestionAnswer
chloroplast structure in plant cells and algae that contains chlorophyll
chlorophyll the green pigment found in the chloroplasts of plant cells
What do chloroplasts do? absorb sunlight to provide the energy for photosynthesis
cell wall stiff outer covering of plant cells that provides structure and protection
cell wall composition tough fibrous material called cellulose
cell membrane protective outer covering of all cells
semipermeable allows some materials to enter and leave the cell
cell basic unit of structure and function in a living organism
cytoplasm gel-like fluid within a cell that contains cell structures
mitochondria structures in a cell that produce energy for the cell
nucleus-biology a cell structure that contains genetic material
nucleus - chemistry the center of an atom, made up of protons and neutrons
vacuole a fluid-filled storage sac found within a cell
What do vacuoles store? Food, water, or waste products
tissue group of similar cells that work together to perform a specific function
What tissues make up the heart? cardiac muscle tissue, nerve tissue, and blood tissue
organ a structure made of 2 or more tissues working together to perform a specific function
organism any living thing composed of one or more cells
organism living thing able to independently carry out all life processes
Created by: switt@ccisd.net
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