UCI Bio 93- Midterm 1
Atoms - answer smallest unit of chemical elements
Molecules - answer two or more atoms combined
Compound - answer two or more elements combined in a fixed ration
C, O, H, N - answer... is 4 elements that make up 96% of all living matter
covalent bond - answer what is the strongest bond?
covalent - answer sharing of electrons by two atoms
ionic - answer transfer of electrons between two atoms
hydrogen bond - answer what is a weak bond?
hydrogen bond - answerthe H atom forms one covalent bond and a second weaker
bond with an atom in another molecules
nonpolar - answerequal sharing of electrons
(two of the same element)
polar - answerunequal sharing of electrons
has a charge
(water)
negative - answerwhat is the charge of O in water?
positive - answerwhat is the charge of H in water?
cohesion - answerinteractions between water molecules
(H2O with H2O)
solvent - answerinteractions between water and other molecules
4 bonds - answerwhat is the maximum amount of bonds that hydrogen can form?
15% - answerin room temperature of water what % is the maximum amount of bonds
going to be made?
more acidic - answerwhen H+ concentration increases...
, more basic - answerwhat H- concentration decreases...
hydrophilic - answeraffinity for water
(polar and ionic bonds)
hydrophobic - answerrepel water
(nonpolar covalent bonds)
buffers - answerchemical processes are sensitive to pH changes and resist change in
the pH solution
7.4 - answerthe pH of human blood is...
carbonic acid and bicarbonate - answerwhat are the main buffers in blood?
right - answerresponse to a rise in pH in blood (becomes more basic)
left - answerresponse to a drop in pH in blood (becomes more acidic)
carbon atoms - answerbuilding blocks for biological molecules
4 VE - answerhow many VE does carbon have?
covalent bonds - answerhow do functional groups join to the carbon skeleton?
hydroxyl - answer-alcohols
-polar
-dissolves organic compounds (like sugars)
carbonyl - answer-ketones (within skeleton)
-aldehydes (at the end of skeleton)
carboxyl - answer-is acidic
-weak acid
-hydroxyl+carbonyl
amino - answer-base
-animes
-can pick up H from surrounding solutions
amino and carboxyl - answerwhat functional groups make up an amino acid?
sulfhydryl - answer-thiols
-cross-linking of cysteines
-stabilizes protein structure
Atoms - answer smallest unit of chemical elements
Molecules - answer two or more atoms combined
Compound - answer two or more elements combined in a fixed ration
C, O, H, N - answer... is 4 elements that make up 96% of all living matter
covalent bond - answer what is the strongest bond?
covalent - answer sharing of electrons by two atoms
ionic - answer transfer of electrons between two atoms
hydrogen bond - answer what is a weak bond?
hydrogen bond - answerthe H atom forms one covalent bond and a second weaker
bond with an atom in another molecules
nonpolar - answerequal sharing of electrons
(two of the same element)
polar - answerunequal sharing of electrons
has a charge
(water)
negative - answerwhat is the charge of O in water?
positive - answerwhat is the charge of H in water?
cohesion - answerinteractions between water molecules
(H2O with H2O)
solvent - answerinteractions between water and other molecules
4 bonds - answerwhat is the maximum amount of bonds that hydrogen can form?
15% - answerin room temperature of water what % is the maximum amount of bonds
going to be made?
more acidic - answerwhen H+ concentration increases...
, more basic - answerwhat H- concentration decreases...
hydrophilic - answeraffinity for water
(polar and ionic bonds)
hydrophobic - answerrepel water
(nonpolar covalent bonds)
buffers - answerchemical processes are sensitive to pH changes and resist change in
the pH solution
7.4 - answerthe pH of human blood is...
carbonic acid and bicarbonate - answerwhat are the main buffers in blood?
right - answerresponse to a rise in pH in blood (becomes more basic)
left - answerresponse to a drop in pH in blood (becomes more acidic)
carbon atoms - answerbuilding blocks for biological molecules
4 VE - answerhow many VE does carbon have?
covalent bonds - answerhow do functional groups join to the carbon skeleton?
hydroxyl - answer-alcohols
-polar
-dissolves organic compounds (like sugars)
carbonyl - answer-ketones (within skeleton)
-aldehydes (at the end of skeleton)
carboxyl - answer-is acidic
-weak acid
-hydroxyl+carbonyl
amino - answer-base
-animes
-can pick up H from surrounding solutions
amino and carboxyl - answerwhat functional groups make up an amino acid?
sulfhydryl - answer-thiols
-cross-linking of cysteines
-stabilizes protein structure
