Biology 230 Final Exam Questions and
Correct Answerss Graded A+
Rank frank
,1. Consider the citric acid cycle. Select the incorrect pair of metabolite and its effect on the citric
acid:
a) ATP; inhibit conversion of pyruvate to acetyl CoA
b) NADH; increases decarboxylation of isocitrate
c) ADP; increases conversion of isocitrate to alpha-ketoglutarate
d) succinyl-CoA; inhibits the decarboxylation of alpha-ketoglutarate - Correct Answerssb) NADH;
increases decarboxylation of isocitrate
1. Which of the following has the smallest size?
a. Bacterium
b. Paramecium
c. Epithelial cell
d. DNA (deoxyribonucleic acid)
e. HIV(human immunodeficiency virus) - Correct Answerssd. DNA (deoxyribonucleic acid)
2. What is the correct equivalence of units?
a. 1 mm = 103 µm
b. 1 nm = 10-6 mm
c. 1 nm = 10-9 mm
d. 1 mm = 10-9 m - Correct Answerssb. 1 nm = 10-6 mm
2. Which is NOT required in the electron transport chain?
a) ATP
b) ADP
c) FADH2
d) NADH - Correct Answersssa) ATP
, 3. Which process(es) produce NADH? f
a) Anaerobic oxidation
b) Glycolysis
c) Oxidative phosphorylation
d) Citric acid cycle
e) c and d
f) b and d
g) a and b - sf) b and d
Correct
4. Select the correct sequence of steps to complete polymerase
Answers chain reaction (PCR).
a) Denaturing -> Repeat cycle ->Extension -> Annealing
ss b) Extension -> Annealing -> Repeat Cycle -> Denaturing
c) Denaturing -> Annealing -> Extension -> Repeat Cycle
d) Annealing -> Denaturing -> Extension -> Repeat Cycle - Correct Answerssc) Denaturing ->
Annealing -> Extension -> Repeat Cycle
4. What is a main role of pretreatment in transforming lignocellulosic materials to ethanol?
a. Harvest and deliver to the biorefinery
b. Ferment sugars into ethanol
c. Purify the biomass and prepare for distribution
d. Break down cellulose chains into sugars
e. Make cellulose accessible to enzyme - Correct Answersse. Make cellulose accessible to
enzyme
5. DNA polymerases are (Choose the Correct Answerss):
Correct Answerss Graded A+
Rank frank
,1. Consider the citric acid cycle. Select the incorrect pair of metabolite and its effect on the citric
acid:
a) ATP; inhibit conversion of pyruvate to acetyl CoA
b) NADH; increases decarboxylation of isocitrate
c) ADP; increases conversion of isocitrate to alpha-ketoglutarate
d) succinyl-CoA; inhibits the decarboxylation of alpha-ketoglutarate - Correct Answerssb) NADH;
increases decarboxylation of isocitrate
1. Which of the following has the smallest size?
a. Bacterium
b. Paramecium
c. Epithelial cell
d. DNA (deoxyribonucleic acid)
e. HIV(human immunodeficiency virus) - Correct Answerssd. DNA (deoxyribonucleic acid)
2. What is the correct equivalence of units?
a. 1 mm = 103 µm
b. 1 nm = 10-6 mm
c. 1 nm = 10-9 mm
d. 1 mm = 10-9 m - Correct Answerssb. 1 nm = 10-6 mm
2. Which is NOT required in the electron transport chain?
a) ATP
b) ADP
c) FADH2
d) NADH - Correct Answersssa) ATP
, 3. Which process(es) produce NADH? f
a) Anaerobic oxidation
b) Glycolysis
c) Oxidative phosphorylation
d) Citric acid cycle
e) c and d
f) b and d
g) a and b - sf) b and d
Correct
4. Select the correct sequence of steps to complete polymerase
Answers chain reaction (PCR).
a) Denaturing -> Repeat cycle ->Extension -> Annealing
ss b) Extension -> Annealing -> Repeat Cycle -> Denaturing
c) Denaturing -> Annealing -> Extension -> Repeat Cycle
d) Annealing -> Denaturing -> Extension -> Repeat Cycle - Correct Answerssc) Denaturing ->
Annealing -> Extension -> Repeat Cycle
4. What is a main role of pretreatment in transforming lignocellulosic materials to ethanol?
a. Harvest and deliver to the biorefinery
b. Ferment sugars into ethanol
c. Purify the biomass and prepare for distribution
d. Break down cellulose chains into sugars
e. Make cellulose accessible to enzyme - Correct Answersse. Make cellulose accessible to
enzyme
5. DNA polymerases are (Choose the Correct Answerss):
