Portage Microbiology Lecture Exam 2 Questions With Solved Solutions.
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Course
BIOD 171
Institution
BIOD 171
True or False. The β-oxidation pathway catabolizes the fatty acid chains of lipids. - Answer True
True or False. Metabolism is a controlled set of biochemical reactions that occur in living organisms in order to maintain life. - Answer True
What is the term for metal ions that assist e...
Portage Microbiology Lecture Exam 2
Questions With Solved Solutions.
True or False. The β-oxidation pathway catabolizes the fatty acid chains of lipids. - Answer True
True or False. Metabolism is a controlled set of biochemical reactions that occur in living organisms in
order to maintain life. - Answer True
What is the term for metal ions that assist enzymes during the catalysis reaction? - Answer Cofactor
The catabolism of a single molecule of glucose goes through what 3 distinct transitions? - Answer 1.
Glycolysis
2. Fermentation or Respiration
3. Electron Transport Chain
What is the most energetic transition in the catabolism of glucose? - Answer 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? - Answer
catabolism
Define catabolism - Answer 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
D. 34 ATP - Answer A
, True or False: The Calvin cycle must occur in the absence of light. - Answer false
Describe the energy transfer process relative to both ATP and ADP. - Answer 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:
True or False. The reactants of the TCA cycle directly enter and fuel the electron transport system. -
Answer 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 - Answer A, B, C, D, E
In phosphorylation, the light reactions always occur where? - Answer 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
C. Carbohydrates
D. Lipids - Answer A, C, D
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