2
Portage Microbiology Lecture Exam 2
UAMS PORTAGE MICROBIOLOGY LECTURE
EXAM 2 QUESTIONS | VERIFIED SOLUTION |
UPDATED VERSION 2026\27.
\ True or False. The β-oxidation pathway catabolizes the fatty acid chains of lipids.-
CORRECT ANS True
True or False. Metabolism is a controlled set of biochemical reactions that occur in
living organisms in order to maintain life.-CORRECT ANS True
What is the term for metal ions that assist enzymes during the catalysis reaction?-
CORRECT ANS Cofactor
The catabolism of a single molecule of glucose goes through what 3 distinct
transitions?-CORRECT ANS 1. Glycolysis
2. Fermentation or Respiration
3. Electron Transport Chain
What is the most energetic transition in the catabolism of glucose?-CORRECT ANS
Throughout the electron transport chain up to 34 molecules of ATP are formed.
Glycolysis and fermentation/respiration each yield only 2 STP.
In order to convert proteins into amino acids which metabolic process would be
active?-CORRECT ANS catabolism
Define catabolism-CORRECT ANS breakdown of larger molecules into subunits
How many ATP does the tricarboxylic acid (TCA) cycle produce per pyruvate?
A. 1 ATP
B. 2 ATP
C. 4 ATP
A+ GRADED 1
, 2
Portage Microbiology Lecture Exam 2
D. 34 ATP-CORRECT ANS A
True or False: The Calvin cycle must occur in the absence of light.-CORRECT ANS
false
Describe the energy transfer process relative to both ATP and ADP.-CORRECT ANS
ADP undergoes phosphorylation to become energy-rich ATP. A phosphoryl group is
added to ADP by way of photophosphorylation, substrate-level phosphorylation, or
oxidative-level phosphorylation. ATP is hydrolyzed in order to become ADP.
Identify the reactants of the following chemical equation:
Glucose + 2NAD+ → 2 NADH + 2 Pyruvate + 2 ATP-CORRECT ANS Glucose,
2NAD+
True or False. The reactants of the TCA cycle directly enter and fuel the electron
transport system.-CORRECT ANS False
The process of carbon fixation begins with which of the following reactants: select
all that apply.
A. ATP
B. Glyceraldehyde-3-phosphate
C. CO2
D. NADPH
E. H2O-CORRECT ANS A, B, C, D, E
In phosphorylation, the light reactions always occur where?-CORRECT ANS The
process of converting light energy into chemical energy (photophosphorylation)
always occurs in the membrane.
In the absence of glucose, which of the following can be used as alternative energy
sources? Select all that apply.
A. Lactose
B. Nucleic acids
A+ GRADED 2
Portage Microbiology Lecture Exam 2
UAMS PORTAGE MICROBIOLOGY LECTURE
EXAM 2 QUESTIONS | VERIFIED SOLUTION |
UPDATED VERSION 2026\27.
\ True or False. The β-oxidation pathway catabolizes the fatty acid chains of lipids.-
CORRECT ANS True
True or False. Metabolism is a controlled set of biochemical reactions that occur in
living organisms in order to maintain life.-CORRECT ANS True
What is the term for metal ions that assist enzymes during the catalysis reaction?-
CORRECT ANS Cofactor
The catabolism of a single molecule of glucose goes through what 3 distinct
transitions?-CORRECT ANS 1. Glycolysis
2. Fermentation or Respiration
3. Electron Transport Chain
What is the most energetic transition in the catabolism of glucose?-CORRECT ANS
Throughout the electron transport chain up to 34 molecules of ATP are formed.
Glycolysis and fermentation/respiration each yield only 2 STP.
In order to convert proteins into amino acids which metabolic process would be
active?-CORRECT ANS catabolism
Define catabolism-CORRECT ANS breakdown of larger molecules into subunits
How many ATP does the tricarboxylic acid (TCA) cycle produce per pyruvate?
A. 1 ATP
B. 2 ATP
C. 4 ATP
A+ GRADED 1
, 2
Portage Microbiology Lecture Exam 2
D. 34 ATP-CORRECT ANS A
True or False: The Calvin cycle must occur in the absence of light.-CORRECT ANS
false
Describe the energy transfer process relative to both ATP and ADP.-CORRECT ANS
ADP undergoes phosphorylation to become energy-rich ATP. A phosphoryl group is
added to ADP by way of photophosphorylation, substrate-level phosphorylation, or
oxidative-level phosphorylation. ATP is hydrolyzed in order to become ADP.
Identify the reactants of the following chemical equation:
Glucose + 2NAD+ → 2 NADH + 2 Pyruvate + 2 ATP-CORRECT ANS Glucose,
2NAD+
True or False. The reactants of the TCA cycle directly enter and fuel the electron
transport system.-CORRECT ANS False
The process of carbon fixation begins with which of the following reactants: select
all that apply.
A. ATP
B. Glyceraldehyde-3-phosphate
C. CO2
D. NADPH
E. H2O-CORRECT ANS A, B, C, D, E
In phosphorylation, the light reactions always occur where?-CORRECT ANS The
process of converting light energy into chemical energy (photophosphorylation)
always occurs in the membrane.
In the absence of glucose, which of the following can be used as alternative energy
sources? Select all that apply.
A. Lactose
B. Nucleic acids
A+ GRADED 2
