Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
25 Cards in this Set
- Front
- Back
|
ionic bond
|
Attraction between + and - ions, atoms "give up" electrons
|
|
|
electron
|
a negatively-charged particle which spins around the nucleus of an atom
|
|
|
unsaturated fat
|
a lipid in which some carbons are bonded to eachother (instead of to hydrogen)
|
|
|
saturated fat
|
a lipid in which every carbon (in a fatty acid chain) has bonded with a hydrogen
|
|
|
RNA
|
nucleic acid which helps a cell to make proteins
|
|
|
DNA
|
nucleic acid which stores hereditary info in cells, double stranded
|
|
|
enzyme
|
proteins which enable chemical reations in metabolism
|
|
|
element
|
a substance which cannot be broken down any further
|
|
|
base
|
a substance which forms OH- ions when dissolved in water
|
|
|
pH scale
|
a measuring device which compares the acidity of various solution based on the amount of H+ ions
|
|
|
polar molecule
|
molecules with unequal areas of charge
|
|
|
hydrogen bond
|
a chemical bond that holds together polar molecules
|
|
|
molecule
|
a compound held together by covalent bonds
|
|
|
compound
|
a group of atoms joined by chemical bonds
|
|
|
acid
|
a compound that forms H+ ions when dissolved in water
|
|
|
ion
|
atom which reacts with another atom, causing it to be electrically unbalanced (unequal number of electrons and protons)
|
|
|
polysaccharide
|
carbohydrates made by linking sugars to form long chains
|
|
|
steroid
|
a lipid containing cholesterol (ex: hormones)
|
|
|
starch
|
storage form of glucose, made of long chains of glucose molecules
|
|
|
glycogen
|
starch fragments stored in longer chains, stored energy (insoluble form)
|
|
|
nucleotide
|
a repeating unit of sugar/phos./ organic base which is chained together to make nucleic acids
|
|
|
cellulose
|
a polysaccharide which provides support for plant cells
|
|
|
polypeptide
|
long chains of amino acids, multiple polypeptides build proteins
|
|
|
collagen
|
a protein which forms the basis for human skin, ligaments, bones, and tendons (equivalent to cellulose in plants?)
|
|
|
atom
|
the smallest defined object, made up of a nucleus and electrons
|
