UNE Microbiology Final Exam and All
Correct Answers 2025-2026 Updated.
Nitrogen is a growth Limiting nutrient for many organisms because - 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 - Answer Salt concentrations
What tests are used to help identify bacteria today? - Answer All of the above
all of the following are used to protect organisms from the toxic by products of oxygen EXCEPT -
Answer protease
A metabolic pathway - 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? - Answer Small hydrophobic Molecules
The molecule that an enzyme acts upon is know as its - Answer substrate
any process hat releases energy is referred to as _ process - Answer exergonic
__ are complex communities of various types of microbes that adhere to surfaces - Answer
biofilm
In 854, John Snow determined that contaminated water transmits - Answer Cholera
Koch's postulates provided guidelines for - Answer relating certain microorganisms with
certain diseases
The place on the enzyme where the enzyme interacts with the substrate is called the - Answer
active site
Lipid A is also known as - Answer endotoxin
,At temperatures higher than the maximum growth temperature for an organism - 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 - Answer facultative
anerobe
During which growth phase are bacteria more susceptible to antimicrobial drugs - Answer
Log phase
Anabolic reactions may be characterized as - Answer forming large molecules from smaller
molecules
heat is used in the destruction of bacteria because heat - Answer denatures enzymes by
altering their tertiary structure
which of the following prokaryotic cells contain an outer membrane - Answer gram-negative
bacteria
The study of the occurrence, distribution, and spread of disease is known as - Answer
epidemiology
which of the following was NOT an aspect of Pasteur's experiments to disprove spontaneous
generation - 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 - 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 - Answer Obligate aerobic
which of the following statements concerning the characteristics of life is FALSE - 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 - Answer Quorum Sensing
The study of the body's defenses against pathogens is called - Answer Immunology
, Which of the following measurement techniques would be useful to quantify a species of
bacteria that is difficult to culture? - Answer Microscope counts
The Krebs cycle accounts for all of the following EXCEPT - Answer production of pyruvate
from glucose
The term barophile refers to which of the following growth requirements - Answer
hydrostatic pressure
which of the following is TRUE statement concerning the structure and function of enzymes -
Answer After an enzyme has catalyzed a reaction, it resumes its original shape and can
interact with a new substrate molecule
Anabolism - Answer Synthesis of cellular compounds, Photosynthetic reactions that produce
glucose
Catabolism - 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 - 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 - Answer Falses
T/F Refrigeration temperatures are too cold for the growth of microorganisms - Answer False
T/F the bacterial chromosome is continuos loop of DNA suspended in the cytosol without a
nuclear membrane - Answer True
T/F Environmental changes can result in the inactivation of enzymes - Answer TRUE
T/F Fermentation pathways provide a cell with an alternative wat to regenerate NAD+ for
glycoloysis - Answer True
T/F Obligate anerobes have enzymes such as superoxide dismutase to protect them from the
damaging effects of oxygen - Answer False
Correct Answers 2025-2026 Updated.
Nitrogen is a growth Limiting nutrient for many organisms because - 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 - Answer Salt concentrations
What tests are used to help identify bacteria today? - Answer All of the above
all of the following are used to protect organisms from the toxic by products of oxygen EXCEPT -
Answer protease
A metabolic pathway - 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? - Answer Small hydrophobic Molecules
The molecule that an enzyme acts upon is know as its - Answer substrate
any process hat releases energy is referred to as _ process - Answer exergonic
__ are complex communities of various types of microbes that adhere to surfaces - Answer
biofilm
In 854, John Snow determined that contaminated water transmits - Answer Cholera
Koch's postulates provided guidelines for - Answer relating certain microorganisms with
certain diseases
The place on the enzyme where the enzyme interacts with the substrate is called the - Answer
active site
Lipid A is also known as - Answer endotoxin
,At temperatures higher than the maximum growth temperature for an organism - 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 - Answer facultative
anerobe
During which growth phase are bacteria more susceptible to antimicrobial drugs - Answer
Log phase
Anabolic reactions may be characterized as - Answer forming large molecules from smaller
molecules
heat is used in the destruction of bacteria because heat - Answer denatures enzymes by
altering their tertiary structure
which of the following prokaryotic cells contain an outer membrane - Answer gram-negative
bacteria
The study of the occurrence, distribution, and spread of disease is known as - Answer
epidemiology
which of the following was NOT an aspect of Pasteur's experiments to disprove spontaneous
generation - 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 - 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 - Answer Obligate aerobic
which of the following statements concerning the characteristics of life is FALSE - 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 - Answer Quorum Sensing
The study of the body's defenses against pathogens is called - Answer Immunology
, Which of the following measurement techniques would be useful to quantify a species of
bacteria that is difficult to culture? - Answer Microscope counts
The Krebs cycle accounts for all of the following EXCEPT - Answer production of pyruvate
from glucose
The term barophile refers to which of the following growth requirements - Answer
hydrostatic pressure
which of the following is TRUE statement concerning the structure and function of enzymes -
Answer After an enzyme has catalyzed a reaction, it resumes its original shape and can
interact with a new substrate molecule
Anabolism - Answer Synthesis of cellular compounds, Photosynthetic reactions that produce
glucose
Catabolism - 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 - 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 - Answer Falses
T/F Refrigeration temperatures are too cold for the growth of microorganisms - Answer False
T/F the bacterial chromosome is continuos loop of DNA suspended in the cytosol without a
nuclear membrane - Answer True
T/F Environmental changes can result in the inactivation of enzymes - Answer TRUE
T/F Fermentation pathways provide a cell with an alternative wat to regenerate NAD+ for
glycoloysis - Answer True
T/F Obligate anerobes have enzymes such as superoxide dismutase to protect them from the
damaging effects of oxygen - Answer False
