MCB 450 - Exam III questions and
answers graded A+ passed
metabolism - correct answer ✔✔the complex of physical and chemical processes occurring
within a living cell or organism that are necessary for the maintenance of life
glucose and fatty acid - correct answer ✔✔What are two main types of Cellular Fuel?
reduction - correct answer ✔✔gain of electron, loss of electron, gain of hydrogen
oxidation - correct answer ✔✔loss of electron, gain of oxygen, and loss of hydrogen
favorable - correct answer ✔✔Hydrolysis of phosphoric acid anhydrides is highly _____
-30.5 - correct answer ✔✔What is the delta G of the hydrolysis of phosphoric acid anhydride
(ATP)?
-45.6 - correct answer ✔✔ATP --> AMP + Pi; What is the delta G?
40 - correct answer ✔✔Resting human consume how much kg of ATP in 24 hours?
1300 - correct answer ✔✔Each ATP molecule must be recycled how many times per day?
substrate-level phosphorylation, creatine kinase, oxidation phosphorylation during cellular
respiration by AtP phosphatase - correct answer ✔✔What are three ways to make ATP in
eukaryotes
,unfavorable - correct answer ✔✔the large negative free energy change of ATP hydrolysis drives
many _______reactions in the cell
ADP/ATP, NAD+/NADH, FAD/FADH2, FMN/FMNH2 - correct answer ✔✔What are activated
carriers during catabolism?
riboflavin - correct answer ✔✔A water soluble mineral that is vitamin B2
ADP/ATP, NADP+/NADPH - correct answer ✔✔What are the activated carriers during
anabolism?
second - correct answer ✔✔Which phase of glycolysis produces?
glyceraldehyde-3-phosphate - correct answer ✔✔What does glucose turn into?
Phosphorylation of glucose, isomerization, second phosphorylation of Fructose-6P, cleavage into
two 3-carbon molecules, isomerization of DHAP ato GaP - correct answer ✔✔What are the five
steps of glycolysis (phase I)?
hexokinase - correct answer ✔✔What is the enzyme in the conversion of glucose and G-6P?
phosphoglucose isomerase - correct answer ✔✔What enzyme catalyzes the conversion of
glucose-6-phosphate to fructose-6-phosphate?
phosphofructokinase - correct answer ✔✔What enzyme catalzyes the conversion of fructose-6-
phosphate to fructose 1,6-bisphosphate
, transiet form of stored energy, thermodynamically unstable, kinetically stable - correct answer
✔✔What are 3 important properties of high energy compounds?
C - correct answer ✔✔Carbohydrates are less-efficient fuel sources than fats because the
carbon in fats is more:
A. Positively charged
B. Hydrophobic
C. Oxidized
D. Basic
E. Acidic
D - correct answer ✔✔Which of the following is a major electron carrier in catabolic pathways?
A. UDP
B. Coenzyme A
C. Biotin
D. NADH
E. All of the above choices are correct
higher Km than other Glut receptors - correct answer ✔✔One of the main roles of the liver is to
act as a blood glucose buffer. As such, glucose only enters the glycolic pathway in the liver when
blood sugar levels exceed normal levels. Entry of glucose from the blood supply into the liver is
regulated by the GLUT2 receptors. Which of the following mechanisms is used by GLUT2
receptors to ensure that the liver only uses glucose in times of plenty?
True - correct answer ✔✔True or false?
Phosphofructokinase is the key regulatory enzyme in the mammalian glycolytic pathway
answers graded A+ passed
metabolism - correct answer ✔✔the complex of physical and chemical processes occurring
within a living cell or organism that are necessary for the maintenance of life
glucose and fatty acid - correct answer ✔✔What are two main types of Cellular Fuel?
reduction - correct answer ✔✔gain of electron, loss of electron, gain of hydrogen
oxidation - correct answer ✔✔loss of electron, gain of oxygen, and loss of hydrogen
favorable - correct answer ✔✔Hydrolysis of phosphoric acid anhydrides is highly _____
-30.5 - correct answer ✔✔What is the delta G of the hydrolysis of phosphoric acid anhydride
(ATP)?
-45.6 - correct answer ✔✔ATP --> AMP + Pi; What is the delta G?
40 - correct answer ✔✔Resting human consume how much kg of ATP in 24 hours?
1300 - correct answer ✔✔Each ATP molecule must be recycled how many times per day?
substrate-level phosphorylation, creatine kinase, oxidation phosphorylation during cellular
respiration by AtP phosphatase - correct answer ✔✔What are three ways to make ATP in
eukaryotes
,unfavorable - correct answer ✔✔the large negative free energy change of ATP hydrolysis drives
many _______reactions in the cell
ADP/ATP, NAD+/NADH, FAD/FADH2, FMN/FMNH2 - correct answer ✔✔What are activated
carriers during catabolism?
riboflavin - correct answer ✔✔A water soluble mineral that is vitamin B2
ADP/ATP, NADP+/NADPH - correct answer ✔✔What are the activated carriers during
anabolism?
second - correct answer ✔✔Which phase of glycolysis produces?
glyceraldehyde-3-phosphate - correct answer ✔✔What does glucose turn into?
Phosphorylation of glucose, isomerization, second phosphorylation of Fructose-6P, cleavage into
two 3-carbon molecules, isomerization of DHAP ato GaP - correct answer ✔✔What are the five
steps of glycolysis (phase I)?
hexokinase - correct answer ✔✔What is the enzyme in the conversion of glucose and G-6P?
phosphoglucose isomerase - correct answer ✔✔What enzyme catalyzes the conversion of
glucose-6-phosphate to fructose-6-phosphate?
phosphofructokinase - correct answer ✔✔What enzyme catalzyes the conversion of fructose-6-
phosphate to fructose 1,6-bisphosphate
, transiet form of stored energy, thermodynamically unstable, kinetically stable - correct answer
✔✔What are 3 important properties of high energy compounds?
C - correct answer ✔✔Carbohydrates are less-efficient fuel sources than fats because the
carbon in fats is more:
A. Positively charged
B. Hydrophobic
C. Oxidized
D. Basic
E. Acidic
D - correct answer ✔✔Which of the following is a major electron carrier in catabolic pathways?
A. UDP
B. Coenzyme A
C. Biotin
D. NADH
E. All of the above choices are correct
higher Km than other Glut receptors - correct answer ✔✔One of the main roles of the liver is to
act as a blood glucose buffer. As such, glucose only enters the glycolic pathway in the liver when
blood sugar levels exceed normal levels. Entry of glucose from the blood supply into the liver is
regulated by the GLUT2 receptors. Which of the following mechanisms is used by GLUT2
receptors to ensure that the liver only uses glucose in times of plenty?
True - correct answer ✔✔True or false?
Phosphofructokinase is the key regulatory enzyme in the mammalian glycolytic pathway
