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CSU BMS 300 EXAM 1 QUESTIONS AND
ANSWERS 2025
Water - ...ANSWER... ✔ ✔H2O, molecular
weight=18, oxygen is partial negative charge,
hydrogen has slight positive charge.
What is a dipole moment? - ...ANSWER... ✔
✔difference in charge on two ends of a molecule
Anions - ...ANSWER... ✔ ✔negatively charged ions
Cations - ...ANSWER... ✔ ✔positively charged ions
covalent bond - ...ANSWER... ✔ ✔A chemical bond
formed when two atoms share electrons
hydrogen bond - ...ANSWER... ✔ ✔Attraction
between a slightly positive hydrogen atom and a
slightly negative atom.
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osmosis - ...ANSWER... ✔ ✔diffusion of water
through aquaporins
diffusion - ...ANSWER... ✔ ✔Movement of molecules
from an area of higher concentration to an area of
lower concentration.
hydrophilic - ...ANSWER... ✔ ✔water loving,
charged, polar
Hydrophobic - ...ANSWER... ✔ ✔Water fearing,
uncharged, nonpolar
Lipids - ...ANSWER... ✔ ✔fats, oils. hydrophobic
Triglycerides - ...ANSWER... ✔ ✔glycerol (3 carbon
alcohol) + 3 fatty acids. use of esterbond
esterbond - ...ANSWER... ✔ ✔Carbon-oxygen-fatty
acid. uses dehydration
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amphipathic molecules - ...ANSWER... ✔ ✔containing
hydrophobic and hydrophilic regions
phosphate head group - ...ANSWER... ✔ ✔region of
phospholipid bilayer that is hydrophillic
Micelle - ...ANSWER... ✔ ✔lipid molecules that
arrange themselves in a spherical form in aqueous
solutions. rare and unstable
liposome - ...ANSWER... ✔ ✔phospholipid molecules
organized as a bilayer sphere. stable.
planar bilayer - ...ANSWER... ✔ ✔makes up
membranes of cells, most stable, both outside and inside
of membrane is hydrophilic (aqueous)
phospholipid bilayer - ...ANSWER... ✔ ✔A double
layer of phospholipids that makes up membranes.
proteins will be involved as a hydrophilic pathway (ion
channel)
protein - ...ANSWER... ✔ ✔amino acid sequence
linked by peptide bonds
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amino acid structure - ...ANSWER... ✔ ✔H, NH2,
COOH bonded to a central carbon and then a variable
R group
primary protein structure - ...ANSWER... ✔ ✔amino
acid sequence linked by peptide bonds. NH and COOH
terminus
secondary protein structure - ...ANSWER... ✔
✔hydrogen bonding. alpha helix or beta sheet.
tertiary protein structure - ...ANSWER... ✔ ✔3D
structure of proteins determined by R groups. functioning
proteins
alpha helix - ...ANSWER... ✔ ✔A spiral shape
constituting one form of the secondary structure of
proteins, arising from a specific hydrogen-bonding
structure within helix
beta pleated sheet - ...ANSWER... ✔ ✔One form of
the secondary structure of proteins in which the protein
CSU BMS 300 EXAM 1 QUESTIONS AND
ANSWERS 2025
Water - ...ANSWER... ✔ ✔H2O, molecular
weight=18, oxygen is partial negative charge,
hydrogen has slight positive charge.
What is a dipole moment? - ...ANSWER... ✔
✔difference in charge on two ends of a molecule
Anions - ...ANSWER... ✔ ✔negatively charged ions
Cations - ...ANSWER... ✔ ✔positively charged ions
covalent bond - ...ANSWER... ✔ ✔A chemical bond
formed when two atoms share electrons
hydrogen bond - ...ANSWER... ✔ ✔Attraction
between a slightly positive hydrogen atom and a
slightly negative atom.
,2|Page
osmosis - ...ANSWER... ✔ ✔diffusion of water
through aquaporins
diffusion - ...ANSWER... ✔ ✔Movement of molecules
from an area of higher concentration to an area of
lower concentration.
hydrophilic - ...ANSWER... ✔ ✔water loving,
charged, polar
Hydrophobic - ...ANSWER... ✔ ✔Water fearing,
uncharged, nonpolar
Lipids - ...ANSWER... ✔ ✔fats, oils. hydrophobic
Triglycerides - ...ANSWER... ✔ ✔glycerol (3 carbon
alcohol) + 3 fatty acids. use of esterbond
esterbond - ...ANSWER... ✔ ✔Carbon-oxygen-fatty
acid. uses dehydration
,3|Page
amphipathic molecules - ...ANSWER... ✔ ✔containing
hydrophobic and hydrophilic regions
phosphate head group - ...ANSWER... ✔ ✔region of
phospholipid bilayer that is hydrophillic
Micelle - ...ANSWER... ✔ ✔lipid molecules that
arrange themselves in a spherical form in aqueous
solutions. rare and unstable
liposome - ...ANSWER... ✔ ✔phospholipid molecules
organized as a bilayer sphere. stable.
planar bilayer - ...ANSWER... ✔ ✔makes up
membranes of cells, most stable, both outside and inside
of membrane is hydrophilic (aqueous)
phospholipid bilayer - ...ANSWER... ✔ ✔A double
layer of phospholipids that makes up membranes.
proteins will be involved as a hydrophilic pathway (ion
channel)
protein - ...ANSWER... ✔ ✔amino acid sequence
linked by peptide bonds
, 4|Page
amino acid structure - ...ANSWER... ✔ ✔H, NH2,
COOH bonded to a central carbon and then a variable
R group
primary protein structure - ...ANSWER... ✔ ✔amino
acid sequence linked by peptide bonds. NH and COOH
terminus
secondary protein structure - ...ANSWER... ✔
✔hydrogen bonding. alpha helix or beta sheet.
tertiary protein structure - ...ANSWER... ✔ ✔3D
structure of proteins determined by R groups. functioning
proteins
alpha helix - ...ANSWER... ✔ ✔A spiral shape
constituting one form of the secondary structure of
proteins, arising from a specific hydrogen-bonding
structure within helix
beta pleated sheet - ...ANSWER... ✔ ✔One form of
the secondary structure of proteins in which the protein
