True or False
Protein Structure and Function
Protein Structure and Function
The shape of a Protein is specified by its amino acid
TRUE
What must all proteins bind to to carry out specific functions?
a. enzymes
b. primary structure
c. ligands
Catabolic reaction builds up from smaller molecules
Anabolic pathways breakdown into smaller molecules.
Both are FALSE.
hint to remember:
ANA builds a castle from blocks, and her CAT breaks it down.
A reaction can only occur spontaneously if the free energy is
a. negative
b. positive
A. NEGATIVE
enzymes work by
a. decreasing product concentration
b. increasing reactant concentration
c. increasing the activation energy
d. reducing the activation energy
d. reducing the activation energy
The end carrying the amino acid is called the carboxyl terminus or C-Terminus
FALSE: the answer is the amino terminus or N-terminus
enzymes are necessary in protein function
true or false
TRUE.
review chapter 4 notes on lysozymes
FREE POINTS
YAY
What is the most widely used activated carrier called?
ATP
true/false: if delta G (free energy) is positive the reaction is spontaneous
FALSE
😉
you can check your notes for the next question.
What are the 4 structures of a protein called?
Primary, Secondary, tertiary, and quatenary
the process of cellular respiration is opposite to photosynthesis.
TRUE.
What does the first law of thermodynamics state?
energy cannot be created or destroyed, but it can be converted from one form to another.
true/false: after a reaction, an enzyme cannot be reused
FALSE
enzymes can be reused again after a reaction
misfolded proteins can cause diseases.
TRUE
What types of proteins act as isolation chambers and help polypeptide fold?
Hint: During the lecture, Dr. Coleman used this example
"when a girl in the 80s goes out, they need someone to watch over them... what is this person called?
Chaperone proteins
Catalyst decrease the rate of chemical reactions
FALSE.
Catalysts are substrates that lower the activation energy of a reaction.
oxidation is __________ electrons and reduction is ____________
a. gaining and losing
b. losing and gaining
c. sharing and transfering
d. transferring and sharing
B. Oxidation is losing electrons and reduction is gaining electrons.
hint to remember:
OIL RIG
oxidation is losing; reduction is gaining.
If the concentration of substrate in a reaction is increased, and it is NOT SATURATED, the reaction should...
a. decrease
b. increase
c. stay the same
b. Increase
FALSE:
hint: what is the opposite of renature?
What are the three types of noncovalent bonds that help proteins fold?
1. electrostatic attractions
2. van der Waals attractions
3. hydrogen bond
lowering the activation energy increases the probability that a reaction will occur.
TRUE
Enzymes
a. Increases energy in a reaction
b. decreases energy in a reaction.
c. enzymes are not NEEDED
b. enzymes reduce the energy needed to initiate spontaneous reactions.
true/false: Amino Acids in proteins are joined together by glycosidic linkage
b. False