Portage Learning| BIOL 271 Microbiology W/ Lab Module 2 Exam; All Versions| Latest +100 Questions With Verified Answers

Portage Learning| BIOL 271 Microbiology W/ Lab Module 2 Exam; All
Versions| Latest +100 Questions With Verified Answers


Institution: Portage Learning
Course Code: BIOL 271
Course Title: Microbiology W/ Lab
Exam: Module 2 Exam
Topic: Microbial Metabolism And Enzymatic Reactions
Edition: Updated Version


Student Name: _______________________________
Student Id: _________________________________
Instructor: _________________________________


Instructions:
• Answer All Questions.
• Choose The Correct Answer




QUESTIONS TYPE:
➢ Multiple Choice:
➢ True Or False:
➢ Explain/Describe/ Identification
➢ Fill In The Blank
➢ Short Answer


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,Module 2. Microbial Metabolism And Enzymatic Reactions

Question 1.
Metabolism Is A Controlled Set Of Biochemical Reactions That Occur In Living
Organisms In Order To Maintain Life. True Or False?
A. True
B. False
ANS. (A)
Explanation: Metabolism Consists Of Controlled Biochemical Reactions Necessary To
Maintain Life.


Question 2.
Enzymes Are Polysaccharides That Catalyze Chemical Reactions. True Or False?
A. True
B. False
ANS. (B)
Explanation: Enzymes Are Proteins That Catalyze Chemical Reactions.


Question 3.
Enzymes Are Proteins That Catalyze (Speed Up) Chemical Reactions. True Or False?
A. True
B. False
ANS. (A)
Explanation: Enzymes Are Proteins That Speed Up Chemical Reactions.


Question 4.
What Are Usually The Metal Ions Known To Assist Enzymes During The Catalysis
Reaction?

,A. Cofactors Are Usually The Metal Ions That Assist Enzymes In Their Catalysis
Reaction.
B. Substrates Are Usually The Metal Ions That Assist Enzymes In Their Catalysis
Reaction.
C. Products Are Usually The Metal Ions That Assist Enzymes In Their Catalysis
Reaction.
D. Inhibitors Are Usually The Metal Ions That Assist Enzymes In Their Catalysis
Reaction.
ANS. (A)
Explanation: Cofactors Assist Enzymes During Catalysis, And Many Cofactors Are
Metal Ions. Examples Of Metal-Ion Cofactors Include Mg²⁺ (Magnesium), Zn²⁺ (Zinc),
Fe²⁺/Fe³⁺ (Iron), And Mn²⁺ (Manganese).




Question 5.
Define Catabolism.
ANS. The Process Of Breaking Down Larger Molecules Into Energy That Can Be Used.
Explanation: Catabolism Involves Breaking Down Larger Molecules And Releasing
Usable Energy.


Question 6.
Anabolism Is?
ANS. The Process Of Building Larger Molecular Structures Using Macromolecules From
Smaller Units.
Explanation: Anabolism Builds Larger Molecular Structures From Smaller Units.


Question 7.
Upon Cellular Injury, Which Metabolic Process Is Involved During The Growth And
Repair Phases Of The Cell?

,ANS. The Anabolic Process.
Explanation: Anabolic Processes Build Cellular Components Needed For Growth And
Repair.


Question 8.
Describe The Energy Transfer Process Relative To Both ATP And ADP.
ANS. ATP Is Able To Donate Energy In The Form Of A Phosphate Group, While ADP
Can Accept Energy In The Form Of A Phosphate Group.
Explanation: ATP And ADP Participate In Cellular Energy Transfer Through
Phosphate-Group Transfer.


Question 9.
An Organism That Derives Its Energy (Generates ATP) From Photons Of Light Is Called
__________________?
A. Phototrophic Microorganism
B. Lithotroph
C. Autotroph
D. Heterotroph
ANS. (A)
Explanation: Phototrophic Microorganisms Derive Energy From Light.


Question 10.
What Is A Phototroph?
ANS. It Is A Type Of Microrganism That Can Obtain Energy From Particles Of Light To
Transform ADP Into ATP
Explanation: Phototrophs Obtain Energy From Light.


Question 11.
What Is A Autotroph ?

,ANS. It Is A Type Of Microorganism That Obtains Its Carbon From Inorganic Molecules
Such As Carbon Dioxide.
Explanation: Autotrophs Obtain Carbon From Inorganic Sources Such As Carbon
Dioxide.


Question 12.
An Organism That Derives Its Energy By Removing Electrons From Elemental Sulfur
Would Be Classified As _______________?
A. Lithotroph
B. Phototroph
C. Autotroph
D. Heterotroph
ANS. (A)
Explanation: Lithotrophs Derive Energy By Removing Electrons From Inorganic
Substances.


Question 13.
A Reactive Intermediate Would Be Present In Which Phosphorylation Process?
A. Phosphorylation
B. Substrate-Level Phosphorylation
C. Oxidative Phosphorylation
D. None Of The Above
ANS. (B)
Explanation: Substrate-Level Phosphorylation Involves Direct Transfer Of A Phosphate
Group From A Phosphorylated Substrate.


Question 14.
The Catabolism Of A Single Molecule Of Glucose Goes Through What Distinct Stages?
ANS. 1. Glycolysis,
2. Fermentation/Respiration And Then

, 3. Electron Transport Chain
Explanation: These Are The Distinct Stages Listed For Glucose Catabolism.


Question 15.
What Is Glycolysis?
ANS. This Is When The Glucose Molecule Bonds Are Broken Down And The Energy Is
Released. Then That Same Energy Is Placed Into Energy Carriers, Which Forms 2 ATP
Explanation: Glycolysis Breaks Down Glucose And Produces ATP And Energy
Carriers.


Question 16.
What Is Fermentation/Respiration?
ANS. This Is When Anaerobic And Aerobic Processes Are Utilized To Create NAD+
And 2 Additional ATP Molecules
Explanation: Fermentation/Respiration Involves Anaerobic And Aerobic Processes As
Described In The Answer.


Question 17.
What Is Electron Transport System?
ANS. This Is When 34 ATP Is Obtained As Electrons Are Being Aerobically And
Anaerobically Transferred To Terminal Electron Receptors. This Allows For A Later
Release Of Energy.
Explanation: The Electron Transport System Involves Electron Transfer To Terminal
Electron Receptors And Energy Release.


Question 18.
What Is The Most Energetic Transition In The Catabolism Of Glucose?
ANS. During The Electron Transport System Stage, Where 34 ATP Is Produced Versus
The Other 2 Stages (Glycolysis And Fermentation/Respiration) Where Only 2 ATP Is
Produced In Each.