Page 1 of 27
BYU PDBIO 305 - HANSEN EXAM 1 NEWEST
2026 ACTUAL EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) ALL ANSWERED {155 Q & A}
ALREADY GRADED A+ | BRAND NEW! | 100%
GUARANTEED PASS
Describe how the Na+/K+ pump functions - ✔✔✔ Correct Answer >
Pump and its three Na+ binding sites are open to the inside of the
cell. ATP changes the conformation of the protein, releasing Na+
outside of the cell, and exposing two potassium binding sites to
the exterior of the cell. As potassium binds the phosphorus falls
off changing the conformation back the original and allowing
potassium into the cell. Remember that it is 3 Na+ to 2 K+
what is the function of phosphocreatine? - ✔✔✔ Correct Answer >
serves as a reserve of high energy phosphates in the muscle
during rapid consumption of ATP (only last for like 10 seconds
sprinting) to provide time for the body to start cranking out ATP
what factors affect the rate of simple diffusion? - ✔✔✔ Correct Answer
> 1. magnitude of the driving force (chemical and electrical force)
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2. membrane surface area
3. membrane permeability
what is the equation for creatine kinase reaction? - ✔✔✔ Correct
Answer > phosphocreatine + ADP -> creatine + ATP
what is the result of the glucose molecule at the end of
glycolysis - ✔✔✔ Correct Answer > 2 pyruvate molecules
what is the net gain from glycolysis? - ✔✔✔ Correct Answer > 2 ATP
2 NADH
2 H+
what is the major site of energy production? - ✔✔✔ Correct Answer >
mitochondria
what is the linking step - ✔✔✔ Correct Answer > it is the step after
glycolysis and before CAC that converts the 2 pyruvate molecules
into 2 acetyl- CoA
what are the net products created from the linking step? - ✔✔✔
Correct Answer > 2 acetyl-CoA
1 NADH per pyruvate
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1 CO2 per pyruvate
where do the enzymes for the krebs cycle come from? - ✔✔✔
Correct Answer > the mitochondrial matrix
for each acetyl-CoA that completes the krebs cycle what are the
products? - ✔✔✔ Correct Answer > 1 ATP
3 NADH
1 FADH2
2 CO2
How many ATP does an NADH molecule create? - ✔✔✔ Correct
Answer > 2.5
How many ATP does an FADH2 molecule create when oxidized? -
✔✔✔ Correct Answer > 1.5
where does ETC take place - ✔✔✔ Correct Answer > inner
mitochondrial membrane
How are triglycerides converted to energy - ✔✔✔ Correct Answer >
glycerol enters in glycolysis
BYU PDBIO 305 - HANSEN EXAM 1 NEWEST
2026 ACTUAL EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) ALL ANSWERED {155 Q & A}
ALREADY GRADED A+ | BRAND NEW! | 100%
GUARANTEED PASS
Describe how the Na+/K+ pump functions - ✔✔✔ Correct Answer >
Pump and its three Na+ binding sites are open to the inside of the
cell. ATP changes the conformation of the protein, releasing Na+
outside of the cell, and exposing two potassium binding sites to
the exterior of the cell. As potassium binds the phosphorus falls
off changing the conformation back the original and allowing
potassium into the cell. Remember that it is 3 Na+ to 2 K+
what is the function of phosphocreatine? - ✔✔✔ Correct Answer >
serves as a reserve of high energy phosphates in the muscle
during rapid consumption of ATP (only last for like 10 seconds
sprinting) to provide time for the body to start cranking out ATP
what factors affect the rate of simple diffusion? - ✔✔✔ Correct Answer
> 1. magnitude of the driving force (chemical and electrical force)
,Page 2 of 27
2. membrane surface area
3. membrane permeability
what is the equation for creatine kinase reaction? - ✔✔✔ Correct
Answer > phosphocreatine + ADP -> creatine + ATP
what is the result of the glucose molecule at the end of
glycolysis - ✔✔✔ Correct Answer > 2 pyruvate molecules
what is the net gain from glycolysis? - ✔✔✔ Correct Answer > 2 ATP
2 NADH
2 H+
what is the major site of energy production? - ✔✔✔ Correct Answer >
mitochondria
what is the linking step - ✔✔✔ Correct Answer > it is the step after
glycolysis and before CAC that converts the 2 pyruvate molecules
into 2 acetyl- CoA
what are the net products created from the linking step? - ✔✔✔
Correct Answer > 2 acetyl-CoA
1 NADH per pyruvate
, Page 3 of 27
1 CO2 per pyruvate
where do the enzymes for the krebs cycle come from? - ✔✔✔
Correct Answer > the mitochondrial matrix
for each acetyl-CoA that completes the krebs cycle what are the
products? - ✔✔✔ Correct Answer > 1 ATP
3 NADH
1 FADH2
2 CO2
How many ATP does an NADH molecule create? - ✔✔✔ Correct
Answer > 2.5
How many ATP does an FADH2 molecule create when oxidized? -
✔✔✔ Correct Answer > 1.5
where does ETC take place - ✔✔✔ Correct Answer > inner
mitochondrial membrane
How are triglycerides converted to energy - ✔✔✔ Correct Answer >
glycerol enters in glycolysis
