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33 Cards in this Set
- Front
- Back
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element |
type of matter in which all the atoms are the same; cannot be broken down |
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atom |
smallest unit of an element |
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compound |
2 or more elements that are chemically combined
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molecule |
smallest unit of most compounds
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organic compound |
compound that contains carbon
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inorganic compound |
compound that does not contain carbon
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protein |
large organic molecules made of carbon, hydrogen, oxygen,nitrogen, and sometimes sulfur
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amino acid |
small units
*linked together |
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enzyme |
a protein
*speeds up chemical reactions |
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carbohydrate |
energy-rich organic compounds |
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lipid |
energy-rich compounds
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nucleic acid |
a very large organic molecule
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DNA |
DeoxyriboNucleic Acid
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RNA |
RiboNucleic Acid
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selectively permeable |
property of cell membranes
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diffusion |
molecules moving
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osmosis |
diffusion of water
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passive transport |
movement of materials
*no energy needed |
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active transport |
movement of materials
*energy needed |
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photosynthesis |
process by which plants make their own food from sunlight
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pigment |
colored chemical that produces color
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chlorophyll |
a green pigment
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stomata |
small openings on underside of leaves
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respiration |
process
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fermentation |
process
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cell cycle |
sequence of growth
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interphase |
a stage of the cell cycle that takes place before cell division
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replication |
cells making copies of DNA
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mitosis |
cell's nucleus dividing into two nuclei
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chromosome |
a part of a cell that contains DNA |
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chromatid |
1 of the identical rods of a chromosome |
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cytokinesis |
final stage of the cell cycle |
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COOL! |
