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BIOD 171 Module 2 Exam – Portage Learning Microbiology
Practice Test, Study Guide & Updated 2025 Exam Questions
Prepare for your BIOD 171 Module 2 Exam with this Portage Learning Microbiology study
guide featuring 2025 updated practice questions, detailed explanations, and review
materials. Covers essential microbiology topics like microbial cell structure, metabolism, and
growth. The perfect BIOD 171 Module 2 exam prep resource to boost your confidence and
scores.
BIOD 171 Module 2 Exam,
BIOD 171 Portage Learning,
BIOD 171 Microbiology Module 2,
BIOD 171 study guide,
How are the TCA and ETC related? - ANSWER-The TCA and ETC are related because the TCA is used to
fuel the ETC.
The end products of Kreb's (TCA) cycle are used to fuel the electron transport chain. In other words, as
the Kreb's cycle (TCA) produces an abundance of reduced electron carriers (NADH and FADH2), it fuels
the ETC. As the electrons are transferred from NADH/Fadh2 to terminal electron acceptors a proton
motor force is generated, ATP synthase is activated and up to 34 molecules of ATP can be produced.
In the absence of sugars, are entirely different metabolic pathways used to process alternative sugar
sources (fructose or lactose)? - ANSWER-No.
No. Additional enzymatic steps are simply required at the beginning of catabolism to convert complex
sugars into the usable forms of wither glucose or a glucoses intermediate (glucose-6-phosphate).
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Proteases are used to catabolize what? - ANSWER-Proteases are used to catabolize proteins.
Proteases are used to breakdown proteins (whereas lipases are used to breakdown lipids).
Excluding sugars, what are the other sources of energy? Which is highest in energy? - ANSWER-The other
sources of energy are polysaccharides and proteins, the highest in energy is lipids.
ATP has the energy to _____, while ADP has the capacity to _____ energy. - ANSWER-Donate, Accept
Chemotrophs can be subdivided into what two additional subgroups? - ANSWER-The two additional
subgroups the chemotrophs can be subdivided into organotrophs and lithotrophs.
Chemotrophs, which acquire energy from preformed chemicals found in the environment, can be
divided into either organotrophs (removing electrons from organic molecules such as glucose) or
lithotrophs, which remove electrons from inorganic molecules.
Chemotrophs utilize form of phosphorylation? - ANSWER-The form of phosphorylation that
chemotrophs utilize is oxidative.
Chemotrophs use oxidative phosphorylation (may also accept substrate level phosphorylation). Oxidative
phosphorylation utilizes the energy released by the chemical oxidation of nutrients to reform ATP.
What are the three distinct stages in the catabolism of glucose? - ANSWER-The three distinct stages in
the catabolism of glucose are glycolysis, tricarboxylic acid cycle, and oxidative phosphorylation.
Glycolysis is the first step of this process and yields 2 molecules of ATP. Next, by either fermentation (or
respiration) 2 additional molecules of ATP can be produced. Last, the electron transport chain (ETC)
produces 34 ATP via an oxidative phosphorylation event at the mitochondrial membrane.
What are the reactants of glycolysis? - ANSWER-The reactant of glycolysis is glucose.
BIOD 171 Module 2 Exam – Portage Learning Microbiology
Practice Test, Study Guide & Updated 2025 Exam Questions
Prepare for your BIOD 171 Module 2 Exam with this Portage Learning Microbiology study
guide featuring 2025 updated practice questions, detailed explanations, and review
materials. Covers essential microbiology topics like microbial cell structure, metabolism, and
growth. The perfect BIOD 171 Module 2 exam prep resource to boost your confidence and
scores.
BIOD 171 Module 2 Exam,
BIOD 171 Portage Learning,
BIOD 171 Microbiology Module 2,
BIOD 171 study guide,
How are the TCA and ETC related? - ANSWER-The TCA and ETC are related because the TCA is used to
fuel the ETC.
The end products of Kreb's (TCA) cycle are used to fuel the electron transport chain. In other words, as
the Kreb's cycle (TCA) produces an abundance of reduced electron carriers (NADH and FADH2), it fuels
the ETC. As the electrons are transferred from NADH/Fadh2 to terminal electron acceptors a proton
motor force is generated, ATP synthase is activated and up to 34 molecules of ATP can be produced.
In the absence of sugars, are entirely different metabolic pathways used to process alternative sugar
sources (fructose or lactose)? - ANSWER-No.
No. Additional enzymatic steps are simply required at the beginning of catabolism to convert complex
sugars into the usable forms of wither glucose or a glucoses intermediate (glucose-6-phosphate).
, 2|Page
Proteases are used to catabolize what? - ANSWER-Proteases are used to catabolize proteins.
Proteases are used to breakdown proteins (whereas lipases are used to breakdown lipids).
Excluding sugars, what are the other sources of energy? Which is highest in energy? - ANSWER-The other
sources of energy are polysaccharides and proteins, the highest in energy is lipids.
ATP has the energy to _____, while ADP has the capacity to _____ energy. - ANSWER-Donate, Accept
Chemotrophs can be subdivided into what two additional subgroups? - ANSWER-The two additional
subgroups the chemotrophs can be subdivided into organotrophs and lithotrophs.
Chemotrophs, which acquire energy from preformed chemicals found in the environment, can be
divided into either organotrophs (removing electrons from organic molecules such as glucose) or
lithotrophs, which remove electrons from inorganic molecules.
Chemotrophs utilize form of phosphorylation? - ANSWER-The form of phosphorylation that
chemotrophs utilize is oxidative.
Chemotrophs use oxidative phosphorylation (may also accept substrate level phosphorylation). Oxidative
phosphorylation utilizes the energy released by the chemical oxidation of nutrients to reform ATP.
What are the three distinct stages in the catabolism of glucose? - ANSWER-The three distinct stages in
the catabolism of glucose are glycolysis, tricarboxylic acid cycle, and oxidative phosphorylation.
Glycolysis is the first step of this process and yields 2 molecules of ATP. Next, by either fermentation (or
respiration) 2 additional molecules of ATP can be produced. Last, the electron transport chain (ETC)
produces 34 ATP via an oxidative phosphorylation event at the mitochondrial membrane.
What are the reactants of glycolysis? - ANSWER-The reactant of glycolysis is glucose.
