UTA PHYSIOLOGY OF EXERCISE
EXAM 1 QUESTIONS AND ANSWERS
What substrates (not CHO) can be used to make glucose? - ANSWER-glycerol,
lactate, pyruvate and alanine
Where does glycolysis take place? - ANSWER-Cytoplasm
What is the net gain of ATP from glucose during glycolysis? - ANSWER-2 ATP
What is the net gain of ATP from glycogen during glycolysis? - ANSWER-3 ATP
How many pyruvates formed from glycolysis? - ANSWER-2
What is the rate limiting enzyme in glycolysis? - ANSWER-phosphofructokinase
What layer of the mitochondria is permeable to most ions? - ANSWER-outer
What layer of the mitochondria is impermeable to most ions unless they have a
specific carrier? - ANSWER-inner
When would density of cristae in mitochondria be higher? - ANSWER-In tissue with
high rates of oxidation (like the heart)
How many ATP from krebs cycle? - ANSWER-2
How many NADH+H from krebs cycle - ANSWER-6
How many FADH2 from krebs cycle? - ANSWER-2
How many co2 from krebs cycle? - ANSWER-2
Rate limiting enzyme of kreb's cycle? - ANSWER-isocitrate dehydrogenase
When acteyl coa is formed are any ATP produced? - ANSWER-no
How many NADH +H from formation of acetly coa? - ANSWER-2
How many CO2 from formation of acetyl coa? - ANSWER-2
How many aceytl coa formed during formation of aceytl coa? - ANSWER-2
How many ATP from aerobic metabolism of one molecule of glucose? - ANSWER-
36
How many ATP from aerobic metabolism of one one molecule of glycogen? -
ANSWER-37
, What is the efficiency of aerobic respiration? - ANSWER-34%
Does the ETS use o2? - ANSWER-Yes, it is final acceptor of electron
Where does the ETS occur? - ANSWER-inner membrane of mitochondria
Formula for oxidative phosphorylation - ANSWER-2H+ + 2e- + 1/2 O2 = h20
What is the Cyclic series of steps that breaks off successive pairs of carbon atoms
from FFA, which are then used to form acetyl CoA? - ANSWER-beta oxidation
Does beta oxidation use o2? - ANSWER-No but, it must be present
Where does beta oxidation occur - ANSWER-mitochondrial matrix
How much ATP is produced from beta oxidation? - ANSWER-0
How much ATP is USED for beta oxidation? - ANSWER-2
What is the process in which NADH and FADH2 are oxidized in the ETS and energy
is released to make ATP? - ANSWER-oxidative phospohylation
What kind of reaction synthesizes molecules (builds)? - ANSWER-anabolic
What kind of reaction breaks down molecules? - ANSWER-catabolic
What kind of reaction is metabolism? - ANSWER-catabolic
What is stored chemical energy that links energy-yielding and energy-requiring
functions within all cells? - ANSWER-ATP
What is the 1st law of thermodynamics? - ANSWER-Energy cannot be created or
destroyed
How much of energy that is created by metabolism lost as heat? - ANSWER-60-70%
What three processes can generate ATP? - ANSWER-ADP+PC --> C + ATP;
Anaerobic metabolism (glycolysis), Aerobic respiration
What is the process by which cells transfer energy from food to ATP in a stepwise
series of reactions; relies heavily upon the use of oxygen? - ANSWER-cellular
respiration
List steps of fat breakdown for metabolism - ANSWER-triglycerides, fatty acids and
glycerol, beta oxidation, acetyl coa, kreb's cycle, ets
List steps of CHO metabolism - ANSWER-polysaccharides, glucose, glycolysis,
pyruvic acid, acetyl coa, kreb's cycle, ets
EXAM 1 QUESTIONS AND ANSWERS
What substrates (not CHO) can be used to make glucose? - ANSWER-glycerol,
lactate, pyruvate and alanine
Where does glycolysis take place? - ANSWER-Cytoplasm
What is the net gain of ATP from glucose during glycolysis? - ANSWER-2 ATP
What is the net gain of ATP from glycogen during glycolysis? - ANSWER-3 ATP
How many pyruvates formed from glycolysis? - ANSWER-2
What is the rate limiting enzyme in glycolysis? - ANSWER-phosphofructokinase
What layer of the mitochondria is permeable to most ions? - ANSWER-outer
What layer of the mitochondria is impermeable to most ions unless they have a
specific carrier? - ANSWER-inner
When would density of cristae in mitochondria be higher? - ANSWER-In tissue with
high rates of oxidation (like the heart)
How many ATP from krebs cycle? - ANSWER-2
How many NADH+H from krebs cycle - ANSWER-6
How many FADH2 from krebs cycle? - ANSWER-2
How many co2 from krebs cycle? - ANSWER-2
Rate limiting enzyme of kreb's cycle? - ANSWER-isocitrate dehydrogenase
When acteyl coa is formed are any ATP produced? - ANSWER-no
How many NADH +H from formation of acetly coa? - ANSWER-2
How many CO2 from formation of acetyl coa? - ANSWER-2
How many aceytl coa formed during formation of aceytl coa? - ANSWER-2
How many ATP from aerobic metabolism of one molecule of glucose? - ANSWER-
36
How many ATP from aerobic metabolism of one one molecule of glycogen? -
ANSWER-37
, What is the efficiency of aerobic respiration? - ANSWER-34%
Does the ETS use o2? - ANSWER-Yes, it is final acceptor of electron
Where does the ETS occur? - ANSWER-inner membrane of mitochondria
Formula for oxidative phosphorylation - ANSWER-2H+ + 2e- + 1/2 O2 = h20
What is the Cyclic series of steps that breaks off successive pairs of carbon atoms
from FFA, which are then used to form acetyl CoA? - ANSWER-beta oxidation
Does beta oxidation use o2? - ANSWER-No but, it must be present
Where does beta oxidation occur - ANSWER-mitochondrial matrix
How much ATP is produced from beta oxidation? - ANSWER-0
How much ATP is USED for beta oxidation? - ANSWER-2
What is the process in which NADH and FADH2 are oxidized in the ETS and energy
is released to make ATP? - ANSWER-oxidative phospohylation
What kind of reaction synthesizes molecules (builds)? - ANSWER-anabolic
What kind of reaction breaks down molecules? - ANSWER-catabolic
What kind of reaction is metabolism? - ANSWER-catabolic
What is stored chemical energy that links energy-yielding and energy-requiring
functions within all cells? - ANSWER-ATP
What is the 1st law of thermodynamics? - ANSWER-Energy cannot be created or
destroyed
How much of energy that is created by metabolism lost as heat? - ANSWER-60-70%
What three processes can generate ATP? - ANSWER-ADP+PC --> C + ATP;
Anaerobic metabolism (glycolysis), Aerobic respiration
What is the process by which cells transfer energy from food to ATP in a stepwise
series of reactions; relies heavily upon the use of oxygen? - ANSWER-cellular
respiration
List steps of fat breakdown for metabolism - ANSWER-triglycerides, fatty acids and
glycerol, beta oxidation, acetyl coa, kreb's cycle, ets
List steps of CHO metabolism - ANSWER-polysaccharides, glucose, glycolysis,
pyruvic acid, acetyl coa, kreb's cycle, ets
