| A | B |
| carbohydrates | sugars and starches that provide cells with energy |
| chemical reactions | breaking bonds to form new bonds forming new molecules |
| nucleic acids | carries information for cell functions; DNA and RNA |
| photosynthesis | production of oxygen and sugars using sunlight energy |
| glucose | sugar molecule used for energy in all cells |
| cellular respiration | releasing energy from glucose by combining it with oxygen |
| mitochondria | where cellular respiration takes place |
| fermentation | cellular respiration without using oxygen |
| diffusion | substances move from higher to lower concentration |
| concentration | amount of material dissolved in a certain amount of liquid |
| osmosis | diffusion of water across a membrane |
| cellulose | complex carbohydrate in cell walls |
| lipids | fats, oils and waxes; used for energy |
| proteins | made of amino acids |
| nucleotides | subunits of nucleic acids |
| hydrophillic | water loving heads of cell membrane |
| hydrophobic | water hating fatty acid tails of cell membrane |
| polar | has an attraction, as in water molecules |
| chlorophyll | green pigment in plants |
| carbon dioxide and water | starting materials of photosynthesis |
| starch | glucose molecules linked together to make a large carbohydrate |
| chloroplast | organelle in plant that captures sunlight |
| alcohol | product of alcoholic fermentation |
| lactic acid | product of fermentation that can cause muscle cramps |
| passive transport | requires no energy to move particles across cell membrane |
| endocytosis | package forming on outside of cell membrane and moves into cell |
| exocytosis | membrane enclosed materials are expelled through cell membrane |