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19 Cards in this Set
- Front
- Back
atom
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smallest unit of an element
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element
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substance that cannot be broken down into simpliar substances (ex. carbon, oxegen, hydrogen, and nitrogen)
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compound
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two or more elements that are chemmically combine (ex. H2O)
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molecule
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smallest unit of a compund
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Organic compound
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a compound that contains carbon ( most important groups of organic compounds found in living things- lipids protein nuclear acids carbohydrates
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inoranic compound
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a compound that does not contain carbon exceptions: carbon dioxide (CO2)
examples- water sodium chloride (NaCL)salt |
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sugar production
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sugar is produce in plants during photosynthesis
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starches
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sugar molecules combine to form larger molecules
plants stor any extra energy in starch molecules |
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glucose (sugar)
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when you eat starches your body breaks down in to for energy
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proteins
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large organic molecules made of carbon, hydrogen, oxygen, nitogen and sometimes sulfur
foods high in protein- meat, eggs, fish, nuts and beans proteins are found in cell membrane certain cell use protein to build body parts |
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Amino Acids
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small molecules that make up bigger protein molecules
20common amino acid can combined in different ways to form thounds of protein |
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Enzymes
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type of protein that speeds up a chemical reaction in a living thing
ex. enzymes in saliva speed up the digestion of food |
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cholrstrol
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an important component of animal cell membranes
produces liver found in many foods eggs, cheese, meat express amount can collect along walls of blood vessels and block blood flow |
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Nuclear Acids
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very large organicmolecules made of carbon, oxegen, hydrogen, nitrogen, and phosphorus
contain instuctions cells need to carry out life functions |
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1 nucleic acid Deoxyribonucleic (DNA)
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is genetic materials that carries info about an organism that is passed from parent to offspring:found in chromtin in nucleus
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2 kid of Nucleic acid Ribonuclcleic acid(RNA)
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plays a role in the production of protein; found in cytoplasm and nucleus
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water and living things
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a.water makes up 2/3 of body
b.without water, most chemical rections within cells could not take place c.water helps cells keep size and shape d. helps keep temp. of cells from changing rapidly |
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lipids
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fats,oil,waxes
similar to carbohydrates in that they are energy-rich organic compounds made of carbon, hydroge, oxgen contains more energy than carbohydrates cell stor energy in lipids later used (ex.bear) example of lipids is cholesterol |
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Carbohdrates
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an energy-rich organic compound made of the elements carbon, hydrogen, and oxgen
(ex. sugars & starches) carbohydrates are found i cellulose and cell membrane |