BIO 219 Exam 1 Wvu Questions
And Answers Latest Update
Humans are made of ____% oxygen, ____% carbon, ____% hydrogen, ____%
nitrogen, and other Answer: 65, 18, 10, 3
nearly all interactions within cells are driven by ________ and ________ Answer:
molecular level interactions and hydrophobic effects
cellular structures are built by ________ arising from _______ Answer:
spontaneous entropic effects and interactions with water
the cell is a _______ system based on ____ chemical reactions Answer:
nonequilibrium and coupled
interactions between and molecules and molecular movement within the cell
occur by __________ Answer: the random thermal jostling of molecules
ionic bonds do what Answer: donate electrons
covalent bonds do what Answer: share electrons
hydrogen bonds do what Answer: they have a attraction of partial charges
,put the types of bonds in order from strongest to weakest Answer:
covalent>ionic>hydrogen
non-polar interaction result in ______ caused by ________. They come together
and minimize interactions with ______ Answer: dispersion, polar things,
polar stuff
______ is the #1 contributor to proper protein folding Answer: non-polar
interactions with polar stuff
cells are an ______ system created by _______ Answer: ordered, disorder
in a lipid bilayer, the polar head interacts with water via what type of interaction?
Answer: hydrogen bonds
in a lipid bilayer, the two phases of the bilayer interact via which type of
interaction? Answer: hydrophobic interactions
what kind of bonds hold functional groups together in cells? Answer:
covalent bonds
know the functional groups of phosphate, amine, methyl, carbonyl, hydroxyl,
carboxyl, aldehyde, and sulfhydryl Answer: check slides
components of proteins Answer: amino acids
components of nucleic acids Answer: nucleotides
, components of polysaccharides Answer: monosaccharides
components of lipids Answer: fatty acids
know the structures of each macromolecule Answer: check slides
cells are examples of what type of assembly? Answer: hierarchical
Where would you expect to find a tryptophan amino acid? Answer: in the
protein (spiral part)
What is a cell's membrane made out of? Answer: depends on the cell's
function
membranes have three things Answer: phospholipids, glycolipids and
cholesterol
what are membranes made out of? Answer: proteins and lipids
saturated fats have how many bonds? Answer: no double bonds
unsaturated fats have how many bonds? Answer: at least one double bond
what is an example of a saturated fat? Answer: butter
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