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19 Cards in this Set

  • Front
  • Back
smallest unit of an element
substance that cannot be broken down into simpliar substances (ex. carbon, oxegen, hydrogen, and nitrogen)
two or more elements that are chemmically combine (ex. H2O)
smallest unit of a compund
Organic compound
a compound that contains carbon ( most important groups of organic compounds found in living things- lipids protein nuclear acids carbohydrates
inoranic compound
a compound that does not contain carbon exceptions: carbon dioxide (CO2)
examples- water sodium chloride (NaCL)salt
sugar production
sugar is produce in plants during photosynthesis
sugar molecules combine to form larger molecules

plants stor any extra energy in starch molecules
glucose (sugar)
when you eat starches your body breaks down in to for energy
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
Amino Acids
small molecules that make up bigger protein molecules
20common amino acid
can combined in different ways to form thounds of protein
type of protein that speeds up a chemical reaction in a living thing
ex. enzymes in saliva speed up the digestion of food
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
Nuclear Acids
very large organicmolecules made of carbon, oxegen, hydrogen, nitrogen, and phosphorus
contain instuctions cells need to carry out life functions
1 nucleic acid Deoxyribonucleic (DNA)
is genetic materials that carries info about an organism that is passed from parent to offspring:found in chromtin in nucleus
2 kid of Nucleic acid Ribonuclcleic acid(RNA)
plays a role in the production of protein; found in cytoplasm and nucleus
water and living things
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
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
an energy-rich organic compound made of the elements carbon, hydrogen, and oxgen
(ex. sugars & starches) carbohydrates are found i cellulose and cell membrane