UNE Microbiology Final Exam
With Correct Questions and
Answers | Graded A+
Nitrogen is a growth Limiting nutrient for many organisms because - Correct Answer-
only a few microbes can extract it from the atmosphere, but all organisms require if for
amino acid and nucleotide synthesis
An organism that tolerates high _ is called a halophile - Correct Answer-Salt
concentrations
What tests are used to help identify bacteria today? - Correct Answer-All of the above
all of the following are used to protect organisms from the toxic by products of oxygen
EXCEPT - Correct Answer-protease
A metabolic pathway - Correct Answer-All the above are true
which of the following molecules would be expected to cross the cytoplasmic
membrane rapidly and without the use of transport proteins? - Correct Answer-Small
hydrophobic Molecules
The molecule that an enzyme acts upon is know as its - Correct Answer-substrate
any process hat releases energy is referred to as _ process - Correct Answer-exergonic
__ are complex communities of various types of microbes that adhere to surfaces -
Correct Answer-biofilm
In 854, John Snow determined that contaminated water transmits - Correct Answer-
Cholera
Koch's postulates provided guidelines for - Correct Answer-relating certain
microorganisms with certain diseases
The place on the enzyme where the enzyme interacts with the substrate is called the -
Correct Answer-active site
Lipid A is also known as - Correct Answer-endotoxin
1|Page
,At temperatures higher than the maximum growth temperature for an organism -
Correct Answer-hydrogen bonds are broken, proteins are denatured, and membranes
become too fluid
Microbes that can live in the presence or absence of oxygen are called - Correct Answer-
facultative anerobe
During which growth phase are bacteria more susceptible to antimicrobial drugs -
Correct Answer-Log phase
Anabolic reactions may be characterized as - Correct Answer-forming large molecules
from smaller molecules
heat is used in the destruction of bacteria because heat - Correct Answer-denatures
enzymes by altering their tertiary structure
which of the following prokaryotic cells contain an outer membrane - Correct Answer-
gram-negative bacteria
The study of the occurrence, distribution, and spread of disease is known as - Correct
Answer-epidemiology
which of the following was NOT an aspect of Pasteur's experiments to disprove
spontaneous generation - Correct Answer-The flasks he used were sealed with corks
Leeuwenhoek made lenses that allowed him to magnify objects more than 200x.
however, he failed to promote scientific inquiry because - Correct Answer-He didnt
reveal how to grind the lenses and no one else was doing it that well
An __ organism is one that requires oxygen for growth - Correct Answer-Obligate
aerobic
which of the following statements concerning the characteristics of life is FALSE -
Correct Answer-Reproduction is defined as an increase in the size of an organism
__ involves the ability of bacterial cells to sense their numbers by producing and
responding to extracellular chemicals - Correct Answer-Quorum Sensing
The study of the body's defenses against pathogens is called - Correct Answer-
Immunology
2|Page
, Which of the following measurement techniques would be useful to quantify a species
of bacteria that is difficult to culture? - Correct Answer-Microscope counts
The Krebs cycle accounts for all of the following EXCEPT - Correct Answer-production
of pyruvate from glucose
The term barophile refers to which of the following growth requirements - Correct
Answer-hydrostatic pressure
which of the following is TRUE statement concerning the structure and function of
enzymes - Correct Answer-After an enzyme has catalyzed a reaction, it resumes its
original shape and can interact with a new substrate molecule
Anabolism - Correct Answer-Synthesis of cellular compounds, Photosynthetic reactions
that produce glucose
Catabolism - Correct Answer-Digestion of cellular compounds, Cells fed glucose and
yielding energy by fermentation and respiration, involves the krebs cycle, starch used
for cellular energy, involves glycolysis
Anabolism and Catabolism both - Correct Answer-Total of biochemical processes in a
cell , the metabolism of chemoheterotrophs
T/F resolution fo the spontaneous generation debate occurred with Koch's use of swan-
necked flasks - Correct Answer-Falses
T/F Refrigeration temperatures are too cold for the growth of microorganisms - Correct
Answer-False
T/F the bacterial chromosome is continuos loop of DNA suspended in the cytosol
without a nuclear membrane - Correct Answer-True
T/F Environmental changes can result in the inactivation of enzymes - Correct Answer-
TRUE
T/F Fermentation pathways provide a cell with an alternative wat to regenerate NAD+
for glycoloysis - Correct Answer-True
T/F Obligate anerobes have enzymes such as superoxide dismutase to protect them
from the damaging effects of oxygen - Correct Answer-False
T/F A selective medium can be formulated either by including inhibitory chemical
substances or by leaving out a single crucial nutrient - Correct Answer-True
3|Page
With Correct Questions and
Answers | Graded A+
Nitrogen is a growth Limiting nutrient for many organisms because - Correct Answer-
only a few microbes can extract it from the atmosphere, but all organisms require if for
amino acid and nucleotide synthesis
An organism that tolerates high _ is called a halophile - Correct Answer-Salt
concentrations
What tests are used to help identify bacteria today? - Correct Answer-All of the above
all of the following are used to protect organisms from the toxic by products of oxygen
EXCEPT - Correct Answer-protease
A metabolic pathway - Correct Answer-All the above are true
which of the following molecules would be expected to cross the cytoplasmic
membrane rapidly and without the use of transport proteins? - Correct Answer-Small
hydrophobic Molecules
The molecule that an enzyme acts upon is know as its - Correct Answer-substrate
any process hat releases energy is referred to as _ process - Correct Answer-exergonic
__ are complex communities of various types of microbes that adhere to surfaces -
Correct Answer-biofilm
In 854, John Snow determined that contaminated water transmits - Correct Answer-
Cholera
Koch's postulates provided guidelines for - Correct Answer-relating certain
microorganisms with certain diseases
The place on the enzyme where the enzyme interacts with the substrate is called the -
Correct Answer-active site
Lipid A is also known as - Correct Answer-endotoxin
1|Page
,At temperatures higher than the maximum growth temperature for an organism -
Correct Answer-hydrogen bonds are broken, proteins are denatured, and membranes
become too fluid
Microbes that can live in the presence or absence of oxygen are called - Correct Answer-
facultative anerobe
During which growth phase are bacteria more susceptible to antimicrobial drugs -
Correct Answer-Log phase
Anabolic reactions may be characterized as - Correct Answer-forming large molecules
from smaller molecules
heat is used in the destruction of bacteria because heat - Correct Answer-denatures
enzymes by altering their tertiary structure
which of the following prokaryotic cells contain an outer membrane - Correct Answer-
gram-negative bacteria
The study of the occurrence, distribution, and spread of disease is known as - Correct
Answer-epidemiology
which of the following was NOT an aspect of Pasteur's experiments to disprove
spontaneous generation - Correct Answer-The flasks he used were sealed with corks
Leeuwenhoek made lenses that allowed him to magnify objects more than 200x.
however, he failed to promote scientific inquiry because - Correct Answer-He didnt
reveal how to grind the lenses and no one else was doing it that well
An __ organism is one that requires oxygen for growth - Correct Answer-Obligate
aerobic
which of the following statements concerning the characteristics of life is FALSE -
Correct Answer-Reproduction is defined as an increase in the size of an organism
__ involves the ability of bacterial cells to sense their numbers by producing and
responding to extracellular chemicals - Correct Answer-Quorum Sensing
The study of the body's defenses against pathogens is called - Correct Answer-
Immunology
2|Page
, Which of the following measurement techniques would be useful to quantify a species
of bacteria that is difficult to culture? - Correct Answer-Microscope counts
The Krebs cycle accounts for all of the following EXCEPT - Correct Answer-production
of pyruvate from glucose
The term barophile refers to which of the following growth requirements - Correct
Answer-hydrostatic pressure
which of the following is TRUE statement concerning the structure and function of
enzymes - Correct Answer-After an enzyme has catalyzed a reaction, it resumes its
original shape and can interact with a new substrate molecule
Anabolism - Correct Answer-Synthesis of cellular compounds, Photosynthetic reactions
that produce glucose
Catabolism - Correct Answer-Digestion of cellular compounds, Cells fed glucose and
yielding energy by fermentation and respiration, involves the krebs cycle, starch used
for cellular energy, involves glycolysis
Anabolism and Catabolism both - Correct Answer-Total of biochemical processes in a
cell , the metabolism of chemoheterotrophs
T/F resolution fo the spontaneous generation debate occurred with Koch's use of swan-
necked flasks - Correct Answer-Falses
T/F Refrigeration temperatures are too cold for the growth of microorganisms - Correct
Answer-False
T/F the bacterial chromosome is continuos loop of DNA suspended in the cytosol
without a nuclear membrane - Correct Answer-True
T/F Environmental changes can result in the inactivation of enzymes - Correct Answer-
TRUE
T/F Fermentation pathways provide a cell with an alternative wat to regenerate NAD+
for glycoloysis - Correct Answer-True
T/F Obligate anerobes have enzymes such as superoxide dismutase to protect them
from the damaging effects of oxygen - Correct Answer-False
T/F A selective medium can be formulated either by including inhibitory chemical
substances or by leaving out a single crucial nutrient - Correct Answer-True
3|Page
