Kline UCONN Bio 1107 Exam 2
what happens if you move one, two, or three of the phosphate groups
in ATP - ANS -it is a spontaneous reaction and it releases energy
(hydrolysis)
breakdown of ATP is - ANS -hydrolysis
Importance of enzymes in a metabolic pathway - ANS --speed of a
reaction can be altered
-can reduce Ea and accelerate reactions
Ea (Activiation energy) - ANS -gets a reaction to start and brings it to the
transition phase where bonds are unstable and are ready to be broken
catalyst - ANS -chemical agent that accelerates the rate of a reaction
without itself being charged by the reaction
most common forms of catalysist - ANS -proteins called ENZYMES
,The ______ the Ea barrier the _____ the reaction will proceed - ANS -
greater; slower
do enzymes alter the change in free energy - ANS -NO
ENZYMES DO:
ENYMES DONT: - ANS -DO: increase the rate of spontaneous (exergonic)
reactions by decreasing the Ea
DONT: supply free energy, make an endergonic reaction proceed
spontaneously, change the delta G of a rection
substrate - ANS -the reactant on which an enzyme acts
Relationship between mitochondria and ATP - ANS -ATP forms in
mitochondria as a part of the reactions of cellular respiration
cellular respiration - ANS -collection of metabolic reactions that breaks
down food molecules to produce energy in the form of ATP
4 cell components - ANS -plasma membrane, DNA, cytoplasm,
ribosomes (RNA and Protein)
, prokaryotes - ANS --lack membrane enclosed internal compartments
(ex: nucleus)
-must have a cell wall containing peptidoglycan
- Ex: bacteria and archea
eukaryotes - ANS --membrane bound organelles
-nucleus, mitochondria, endoplasm's reticulum, Golgi apparatus
-bigger
-humans, plants, etc
mitochondria - ANS --site for conversion of stored energy to ATP
-inner membrane is folded (cristae)
oxidation - ANS -partial or full loss of e-
substance that loses it's electrons in oxidation is called the _____ and is
said to be ________- - ANS -electron donor; oxidized
reduction - ANS -partial or full gain of electrons
substance that gains electrons is called the _____ and is said to be
________ - ANS -electron acceptor, reduced
what happens if you move one, two, or three of the phosphate groups
in ATP - ANS -it is a spontaneous reaction and it releases energy
(hydrolysis)
breakdown of ATP is - ANS -hydrolysis
Importance of enzymes in a metabolic pathway - ANS --speed of a
reaction can be altered
-can reduce Ea and accelerate reactions
Ea (Activiation energy) - ANS -gets a reaction to start and brings it to the
transition phase where bonds are unstable and are ready to be broken
catalyst - ANS -chemical agent that accelerates the rate of a reaction
without itself being charged by the reaction
most common forms of catalysist - ANS -proteins called ENZYMES
,The ______ the Ea barrier the _____ the reaction will proceed - ANS -
greater; slower
do enzymes alter the change in free energy - ANS -NO
ENZYMES DO:
ENYMES DONT: - ANS -DO: increase the rate of spontaneous (exergonic)
reactions by decreasing the Ea
DONT: supply free energy, make an endergonic reaction proceed
spontaneously, change the delta G of a rection
substrate - ANS -the reactant on which an enzyme acts
Relationship between mitochondria and ATP - ANS -ATP forms in
mitochondria as a part of the reactions of cellular respiration
cellular respiration - ANS -collection of metabolic reactions that breaks
down food molecules to produce energy in the form of ATP
4 cell components - ANS -plasma membrane, DNA, cytoplasm,
ribosomes (RNA and Protein)
, prokaryotes - ANS --lack membrane enclosed internal compartments
(ex: nucleus)
-must have a cell wall containing peptidoglycan
- Ex: bacteria and archea
eukaryotes - ANS --membrane bound organelles
-nucleus, mitochondria, endoplasm's reticulum, Golgi apparatus
-bigger
-humans, plants, etc
mitochondria - ANS --site for conversion of stored energy to ATP
-inner membrane is folded (cristae)
oxidation - ANS -partial or full loss of e-
substance that loses it's electrons in oxidation is called the _____ and is
said to be ________- - ANS -electron donor; oxidized
reduction - ANS -partial or full gain of electrons
substance that gains electrons is called the _____ and is said to be
________ - ANS -electron acceptor, reduced
