Organic BioChemistry 212 Exam 3 Questions with Answers
1. Which is not a result of cellular respiration?
- carbon dioxide
- oxygen
- chemical energy
- heat: oxygen
2. MEMORIZE
energy requirements for life: - energy must be released from food gradually
- energy must be stored in a readily accessible forms
- release of energy from storage must be finely controlled so that it is
available exactly when and where it is needed
- just enough energy must be released to maintain body temperature
- energy in a form other than heat must be available to drive chemical reactions
that are not favorable at body temperatures.
3. True or False?
Energy storage and release is tightly controlled: True
4. What is this definition: All Chemical reactions that place in an organism?: -
metabolism
5. What is this definition: Processes that breakdown food (lipids
carbohy- drates and proteins to produce energy): catabolism
6. What is this definition: Processes that require energy to build large
mole- cules from small ones: anabolism
7. MEMORIZE
,Organic BioChemistry 212 Exam 3 Questions with Answers
What is stage one of catabolism?: digestion of macro-molecules into subunits
8. MEMORIZE
What is stage two of catabolism?: breakdown of subunits into an oxidized
form (acetyl-SCoA)
9. MEMORIZE
What is stage three of catabolism?: Acetyl-SCoA oxidized to produced CO2 &
reduced Coenzymes
10. MEMORIZE
What is stage four of catabolism?: oxidative phosphorylation to produce ATP &
H2O
11. Which stage of catabolism oxidizes carbons of Acetyl-CoA to CO2
and reduces coenzymes.: stage 3
12. What is an Exergonic Process?: Reactions that give OFF energy.
Occurs spontaneously (Delta G is a negative value.
13. What is an Endergonic process?: Reactions require energy to occur.
occurs NONspontaneously (delta g is a positive value)
14. What are the four rules of a metabolic pathway?: 1, metabolic pathways
are highly exergonic and irreversible
2, every metabolic pathway has a committed step
3, all metabolic pathways are regulated
4, metabolic pathways in eukaryotic cells occur in specific cellular locations
15. True or False?
Different pathways are required to reverse highly exergonic pathways: true
16. True or False?
Pathways occur in separate locations in the cell so they can be more tightly
,Organic BioChemistry 212 Exam 3 Questions with Answers
regulated.: true
17. What type of metabolic pathway is this description: pathway follows
a linear progression of reactions: linear sequence
18. What type of metabolic pathway is this description: pathway
regenerates initial substrate in last reaction: cyclic sequence
19. What type of metabolic pathway is this description: one enzyme or
group of enzymes breakdown a polymer one monomer at a time/: Spiral
Sequence.
20. Which type of metabolic pathway uses its final product as a substate
for its first reduction?
- linear
- cyclic
- spiral
- none of the above: cyclic sequence
21. True or False
Catabolic pathways that your body uses to breakdown food all
produce acetyl-CoA at the end of their catabolic stage 2: True
22. MEMORIZE
What is this definition? Metabolic processes produce and use high energy
molecules: High Energy Molecules
23. MEMORIZE
What are the high energy molecules?: -
Coenzymes Acetyl-SCoA
NADH
FADH2
,Organic BioChemistry 212 Exam 3 Questions with Answers
- ATP
24. REVIEW
what is this definition: an organic compound required for catalysis: coenzyme
25. What are Acetyl CoA: Coenzyme, Function, and vitamin name?:
COEN- ZYME: Coenzyme A
FUNCTION: carrier of acetyl groups (2 carbon groups into TCA cycle)
VITAMIN NAME: Pantothenic Acid (B5)
26. Which of the following molecules is considered a high energy molecule?
- NAD+
- CoA
- FAD
- Acetyl-CoA
AMP: Acetyl-
CoA
27. What are NADH/NADPH: coenzymes, vitamin name, and function: -
COEN- ZYMES: nicotinamide adenine dinucleotide
NAD+/NADH
NADP+/NADPH
- VITAMIN: niacin (b3)
- FUNCTION: redox reactions
28. What are FADH2: coenzymes, vitamin name, and function: -
COENZYMES: FAD/FADH2 (flavin adenine dinucleotide)
- VITAMIN: riboflavin (B2)
- FUNCTION: redox reactions
29. FAD is the form of the coenzyme derived from riboflavin
1. Which is not a result of cellular respiration?
- carbon dioxide
- oxygen
- chemical energy
- heat: oxygen
2. MEMORIZE
energy requirements for life: - energy must be released from food gradually
- energy must be stored in a readily accessible forms
- release of energy from storage must be finely controlled so that it is
available exactly when and where it is needed
- just enough energy must be released to maintain body temperature
- energy in a form other than heat must be available to drive chemical reactions
that are not favorable at body temperatures.
3. True or False?
Energy storage and release is tightly controlled: True
4. What is this definition: All Chemical reactions that place in an organism?: -
metabolism
5. What is this definition: Processes that breakdown food (lipids
carbohy- drates and proteins to produce energy): catabolism
6. What is this definition: Processes that require energy to build large
mole- cules from small ones: anabolism
7. MEMORIZE
,Organic BioChemistry 212 Exam 3 Questions with Answers
What is stage one of catabolism?: digestion of macro-molecules into subunits
8. MEMORIZE
What is stage two of catabolism?: breakdown of subunits into an oxidized
form (acetyl-SCoA)
9. MEMORIZE
What is stage three of catabolism?: Acetyl-SCoA oxidized to produced CO2 &
reduced Coenzymes
10. MEMORIZE
What is stage four of catabolism?: oxidative phosphorylation to produce ATP &
H2O
11. Which stage of catabolism oxidizes carbons of Acetyl-CoA to CO2
and reduces coenzymes.: stage 3
12. What is an Exergonic Process?: Reactions that give OFF energy.
Occurs spontaneously (Delta G is a negative value.
13. What is an Endergonic process?: Reactions require energy to occur.
occurs NONspontaneously (delta g is a positive value)
14. What are the four rules of a metabolic pathway?: 1, metabolic pathways
are highly exergonic and irreversible
2, every metabolic pathway has a committed step
3, all metabolic pathways are regulated
4, metabolic pathways in eukaryotic cells occur in specific cellular locations
15. True or False?
Different pathways are required to reverse highly exergonic pathways: true
16. True or False?
Pathways occur in separate locations in the cell so they can be more tightly
,Organic BioChemistry 212 Exam 3 Questions with Answers
regulated.: true
17. What type of metabolic pathway is this description: pathway follows
a linear progression of reactions: linear sequence
18. What type of metabolic pathway is this description: pathway
regenerates initial substrate in last reaction: cyclic sequence
19. What type of metabolic pathway is this description: one enzyme or
group of enzymes breakdown a polymer one monomer at a time/: Spiral
Sequence.
20. Which type of metabolic pathway uses its final product as a substate
for its first reduction?
- linear
- cyclic
- spiral
- none of the above: cyclic sequence
21. True or False
Catabolic pathways that your body uses to breakdown food all
produce acetyl-CoA at the end of their catabolic stage 2: True
22. MEMORIZE
What is this definition? Metabolic processes produce and use high energy
molecules: High Energy Molecules
23. MEMORIZE
What are the high energy molecules?: -
Coenzymes Acetyl-SCoA
NADH
FADH2
,Organic BioChemistry 212 Exam 3 Questions with Answers
- ATP
24. REVIEW
what is this definition: an organic compound required for catalysis: coenzyme
25. What are Acetyl CoA: Coenzyme, Function, and vitamin name?:
COEN- ZYME: Coenzyme A
FUNCTION: carrier of acetyl groups (2 carbon groups into TCA cycle)
VITAMIN NAME: Pantothenic Acid (B5)
26. Which of the following molecules is considered a high energy molecule?
- NAD+
- CoA
- FAD
- Acetyl-CoA
AMP: Acetyl-
CoA
27. What are NADH/NADPH: coenzymes, vitamin name, and function: -
COEN- ZYMES: nicotinamide adenine dinucleotide
NAD+/NADH
NADP+/NADPH
- VITAMIN: niacin (b3)
- FUNCTION: redox reactions
28. What are FADH2: coenzymes, vitamin name, and function: -
COENZYMES: FAD/FADH2 (flavin adenine dinucleotide)
- VITAMIN: riboflavin (B2)
- FUNCTION: redox reactions
29. FAD is the form of the coenzyme derived from riboflavin
