Question 1

What is the result if an enzyme is subjected to extremely high temperatures?

Accepted Answer

A) The enzyme's rate of reaction will increase 
B) There will be an alteration in electrical charges, which will interfere with substrate interaction 
C) The substrate concentration will be too low for enzyme activity 
D) The hydrogen bonds stabilizing the three-dimensional structure will break and the enzyme will become denatured 
E) The enzyme's activity will cease as a result of feedback inhibition 
A) The enzyme's rate of reaction will increase 
B) There will be an alteration in electrical charges, which will interfere with substrate interaction 
C) The substrate concentration will be too low for enzyme activity 
D) The hydrogen bonds stabilizing the three-dimensional structure will break and the enzyme will become denatured 
E) The enzyme's activity will cease as a result of feedback inhibition

Question 2

Which of the following statements regarding NAD? is incorrect?

Accepted Answer

A) NAD? is a vitamin 
B) NAD? is a coenzyme 
C) NAD? enters the electron transport chain as NADH 
D) In its reduced form NADH becomes NAD? 
E) More NADH is formed more often than FADH? in the Krebs cycle 
A) NAD? is a vitamin 
B) NAD? is a coenzyme 
C) NAD? enters the electron transport chain as NADH 
D) In its reduced form NADH becomes NAD? 
E) More NADH is formed more often than FADH? in the Krebs cycle

Question 3

Use the figure below to answer the following questions.
  
-In the figure which step would produce carbon dioxide?

Accepted Answer

The answer of Use the figure below to answer the...

Question 4

Which of the following is a mismatched pair?

Accepted Answer

A) Heterotrophs - CO2 
B) Chemo heterotrophs - organic compounds 
C) Chemoautotrophs - inorganic molecules 
D) Photoautotrophs - sunlight and CO2 
E) Infectious organisms - organic compounds 
A) Heterotrophs - CO2 
B) Chemo heterotrophs - organic compounds 
C) Chemoautotrophs - inorganic molecules 
D) Photoautotrophs - sunlight and CO2 
E) Infectious organisms - organic compounds

Question 5

Provide two examples of biological molecules made by anabolism that would be required for the replication of bacteria to occur,identifying the reactants and products.

Accepted Answer

Two,among many,examples of large molecul

Question 6

Use the figure below to answer the following questions.
  
-In the figure which step would produce a polysaccharide?

Accepted Answer

The answer of Use the figure below to answer the...

Question 7

During alcoholic fermentation the intermediate _____ is synthesized from pyruvic acid.

Accepted Answer

A) NAD? 
B) Acetaldehyde 
C) Lactic acid 
D) ATP 
E) Acetyl CoA 
A) NAD? 
B) Acetaldehyde 
C) Lactic acid 
D) ATP 
E) Acetyl CoA

Question 8

You are working at a biotechnology company that specializes in the scale-up and purification of enzymes derived from bacterial sources for human therapeutics.One of your responsibilities is to ensure that the 180-liter industrial fermenter in the pilot plant does not exceed 37°C during the batch synthesis phase.Explain why attention to this particular detail is important.

Accepted Answer

Bacteria grow best within a particular t

Question 9

In a chemical reaction pyruvate has gained one electron.It has therefore been

Accepted Answer

A) Catabolized 
B) Hydrolysed 
C) Reduced 
D) Phosphorylated 
E) Oxidized 
A) Catabolized 
B) Hydrolysed 
C) Reduced 
D) Phosphorylated 
E) Oxidized

Question 10

Which is an example of a hydrolysis reaction?

Accepted Answer

A) Amino acids to protein 
B) DPN to DPNH 
C) DPNH to DPN 
D) Glycogen to glucose 
E) Glucose to phosphoglucose 
A) Amino acids to protein 
B) DPN to DPNH 
C) DPNH to DPN 
D) Glycogen to glucose 
E) Glucose to phosphoglucose

Question 11

Use the figure below to answer the following questions.
  
-In the figure which step indicates the molecules produced by hydrolysis?

Accepted Answer

The answer of Use the figure below to answer the...

Question 12

When a molecule is oxidized it receives electrons.

Accepted Answer

A) True 
 B)False

Question 13

What is the name of a reaction that results from oxidation of one reactant coupled to the reduction of another?

Accepted Answer

A) Reciprocal 
B) A chemoheterotrophic reaction 
C) Aerobic respiration 
D) Competitive inhibition 
E) Redox 
A) Reciprocal 
B) A chemoheterotrophic reaction 
C) Aerobic respiration 
D) Competitive inhibition 
E) Redox

Question 14

What happens when one molecule of glucose is oxidized completely using the Krebs cycle and the electron transport chain?

Accepted Answer

A) 12 H2O molecules are formed 
B) anaerobic respiration occurs 
C) 38 ATP molecules are formed 
D) 3 CO2 molecules are formed 
E) 12 O2 molecules are consumed 
A) 12 H2O molecules are formed 
B) anaerobic respiration occurs 
C) 38 ATP molecules are formed 
D) 3 CO2 molecules are formed 
E) 12 O2 molecules are consumed

Question 15

Nearly all infectious organisms are chemoheterotrophs.

Accepted Answer

A) True 
 B)False

Question 16

Use the terms provided below to describe how a cell metabolizes glucose in the presence or absence of oxygen.

Accepted Answer

During anaerobic metabolism,there is an

Question 17

The regulation of enzymes is illustrated by the ability of the end product of a series of enzymatic reactions to inhibit the first enzyme in the pathway.

Accepted Answer

A) True 
 B)False

Question 18

What always occurs during catabolism?

Accepted Answer

A) Aerobic respiration 
B) Electron rearrangement 
C) Feedback inhibition 
D) Proton motive force 
E) Competitive inhibition 
A) Aerobic respiration 
B) Electron rearrangement 
C) Feedback inhibition 
D) Proton motive force 
E) Competitive inhibition

Question 19

Which is an example of a reduction reaction?

Accepted Answer

A) Amino acids to protein 
B) DPN to DPNH 
C) DPNH to DPN 
D) Glycogen to glucose 
E) Glucose to phosphoglucose 
A) Amino acids to protein 
B) DPN to DPNH 
C) DPNH to DPN 
D) Glycogen to glucose 
E) Glucose to phosphoglucose

Question 20

Describe three ways in which the cell can regulate enzyme activity.

Accepted Answer

Cells can regulate enzyme activity by co

Exam 3: Essentials of Metabolism

What is the result if an enzyme is subjected to extremely high temperatures?

Which of the following statements regarding NAD? is incorrect?

Use the figure below to answer the following questions. -In the figure which step would produce carbon dioxide?

Which of the following is a mismatched pair?

Provide two examples of biological molecules made by anabolism that would be required for the replication of bacteria to occur,identifying the reactants and products.

Use the figure below to answer the following questions. -In the figure which step would produce a polysaccharide?

During alcoholic fermentation the intermediate _____ is synthesized from pyruvic acid.

In a chemical reaction pyruvate has gained one electron.It has therefore been

Which is an example of a hydrolysis reaction?

Use the figure below to answer the following questions. -In the figure which step indicates the molecules produced by hydrolysis?

When a molecule is oxidized it receives electrons.

What is the name of a reaction that results from oxidation of one reactant coupled to the reduction of another?

What happens when one molecule of glucose is oxidized completely using the Krebs cycle and the electron transport chain?

Nearly all infectious organisms are chemoheterotrophs.

Use the terms provided below to describe how a cell metabolizes glucose in the presence or absence of oxygen.

The regulation of enzymes is illustrated by the ability of the end product of a series of enzymatic reactions to inhibit the first enzyme in the pathway.

What always occurs during catabolism?

Which is an example of a reduction reaction?

Describe three ways in which the cell can regulate enzyme activity.

What is Microbiology and Why Does it Matter?

Fundamental Chemistry for Microbiology

An Introduction to Cell Structure and Host-Pathogen Relationships

Requirements for Infection

Transmission of Infection, the Compromised Host, Epidemiology, and Diagnosing Infections

Principles of Disease

Emerging and Re-Emerging Infectious Disease

The Clinical Significance of Bacterial Anatomy

Bacterial Growth

Microbial Genetics and Infectious Disease

The Structure and Infection Cycle of Viruses

Viral Infection

Parasitic and Fungal Infections

The Innate Immune Response

The Adaptive Immune Response

Failures of the Immune Response

Control of Microbial Growth with Disinfectants and Antiseptics

Antibiotics and Antimicrobial Drugs

Antibiotic Resistance

Infections of the Respiratory System

Infections of the Digestive System

Infections of the Genitourinary System

Infections of the Central Nervous System

Infections of the Blood and Lymph

Infections of the Skin and Eyes

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