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chemistry
vocabulary
Question | Answer |
---|---|
atom | The basic unit of matter |
nucleus | The centger of an atom that contains the protons and neutrons. |
electron | Negatively charged particles, located outside the atomic nucleus |
element | A pure substance made of one type of atom, cannot not be broken down any further. |
molecule | Two or more atoms combined |
compound | The chemical combination of two or more elements in definite proportions. |
bond(chemical) | What keeps molecules and compounds together. The glue |
adhesion | Attraction between molecules of the same substance. |
cohesion | Attraction between molecules of different substances |
monomer | small unit that can join together with other small units to form polymers |
polymer | Large compound formed from combinations of many monomers |
carbohydrates | the main source of energy in living things. In animals starch is called glycogen and in plants cellulose |
lipids | used to store energy(long term) and makes up the cell membrane and waterproof coverings |
proteins | amino acids are the building blocks and their job is to control the rate of reactions, form structures, regulate cell proccesses, and transport substances |
nucleic acid | store and transmit heridetary information |