1|Page
BIOD 171 MODULE 2 EXAM LATEST 2025 ACTUAL EXAM WITH
COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS (100%
VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED|| ||BRANDNEW!!!||
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.
,2|Page
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.
, 3|Page
Reactants are defined as any molecules present and involved at
the beginning of a specific chemical reaction (ie) glycolysis. In
terms of writing out a chemical reaction, the reactants of
glycolysis are glucose, the co-enzyme NAD+ and ATP.
What are the two main strategies for replenishing cellular
concentrations of NAD+, and when these strategies be utilized? -
ANSWER-The two main strategies for replenishing cellular
concentrations of NAD+ are fermentation and respiration.
Fermentation occurs in the absence of oxygen while respiration
occurs under aerobic conditions.
Fermentation and Respiration are the two strategies used by the
cell to convert NADH (end product of glycolysis) back to NAD+.
Fermentation occurs in the absence of oxygen (anaerobic
conditions) while respiration occurs under aerobic (presence of
oxygen) conditions. Notably, respiration is more efficient that
fermentation.
How are the TCA and ETC related? - ANSWER-The TCA and
ETC are related because the TCA is used to fuel the ETC.
BIOD 171 MODULE 2 EXAM LATEST 2025 ACTUAL EXAM WITH
COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS (100%
VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED|| ||BRANDNEW!!!||
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.
,2|Page
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.
, 3|Page
Reactants are defined as any molecules present and involved at
the beginning of a specific chemical reaction (ie) glycolysis. In
terms of writing out a chemical reaction, the reactants of
glycolysis are glucose, the co-enzyme NAD+ and ATP.
What are the two main strategies for replenishing cellular
concentrations of NAD+, and when these strategies be utilized? -
ANSWER-The two main strategies for replenishing cellular
concentrations of NAD+ are fermentation and respiration.
Fermentation occurs in the absence of oxygen while respiration
occurs under aerobic conditions.
Fermentation and Respiration are the two strategies used by the
cell to convert NADH (end product of glycolysis) back to NAD+.
Fermentation occurs in the absence of oxygen (anaerobic
conditions) while respiration occurs under aerobic (presence of
oxygen) conditions. Notably, respiration is more efficient that
fermentation.
How are the TCA and ETC related? - ANSWER-The TCA and
ETC are related because the TCA is used to fuel the ETC.
