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8thGrCellCh1Sec1,3,4

8th Grade Cells & Heredity Sec. 1,3,4

QuestionAnswer
cells the basic units of structure and function in living things
microscope an instrument that makes small objects look larger
cell theory a widely accepted explanation of the relationship between cells and living things
elements any substance that cannot be broken down into simpler substances
compound when two or more elements combine chemically
carbohydrate energy rich organic compound made of carbon, hydrogen and oxygen
lipids energy rich organic compounds that contain more energy than carbohydrates
proteins large organic molecules made of carbon, hydrogen, oxygen, and nitrogen
enzyme type of protein that speeds up a chemical reaction in a living thing
DNA genetic material that carries information about an organizm passed from parent to offspring
RNA ribonucleic acid that plays and important role in the production of proteins
nucleic acids very long organic molecules made of carbon, oxygen, hydrogen,nitrogen and phosphorus
selectively permeable some substances can pass through the membrance while others cannot
osmosis the diffusion of water molecules through a selectively permeable membrane
passive transport the movement of dissolved materials through a cell membrane without using cellular energy
active transport the movement of materials through a cell membran using cellular energy
Created by: Karen Copanic
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