Portage Microbiology Lecture Exam 2
True or False. The β-oxidation pathway catabolizes the fatty acid chains of lipids. –
True
True or False. Metabolism is a controlled set of biochemical reactions that occur in living
organisms in order to maintain life. –
True
What is the term for metal ions that assist enzymes during the catalysis reaction? -
Cofactor
The catabolism of a single molecule of glucose goes through what 3 distinct transitions?
- 1. Glycolysis
2. Fermentation or Respiration
3. Electron Transport Chain
What is the most energetic transition in the catabolism of glucose? –
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? -
catabolism
Define catabolism –
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 - A
True or False: The Calvin cycle must occur in the absence of light. –
false
Describe the energy transfer process relative to both ATP and ADP. –
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 - Glucose, 2NAD+
True or False. The β-oxidation pathway catabolizes the fatty acid chains of lipids. –
True
True or False. Metabolism is a controlled set of biochemical reactions that occur in living
organisms in order to maintain life. –
True
What is the term for metal ions that assist enzymes during the catalysis reaction? -
Cofactor
The catabolism of a single molecule of glucose goes through what 3 distinct transitions?
- 1. Glycolysis
2. Fermentation or Respiration
3. Electron Transport Chain
What is the most energetic transition in the catabolism of glucose? –
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? -
catabolism
Define catabolism –
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 - A
True or False: The Calvin cycle must occur in the absence of light. –
false
Describe the energy transfer process relative to both ATP and ADP. –
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 - Glucose, 2NAD+
