WMD Exam 1 UPDATED Study ACTUAL
QUESTIONS AND CORRECT ANSWERS
Halophile - CORRECT ANSWER Which extremophile type includes organisms that
can thrive in environments with high salt?
Halophile
Piezophile
Psychrophile
Hyperthermophile
Correct!1 Cytoplasmic membrane
Correct!2 Monotrichous flagella
Correct!3 Nucleoid
Correct!4 Plasmid - CORRECT ANSWER Directions: Please match the numbered box
in the left column with its cellular structure in the right column. Each description is used only
ONCE.
Answer 1: aerobic
Answer 2: photosynthetic - CORRECT ANSWER Eukaryotic mitochondria and
chloroplast are theorized to have been derived from a(n) _____ and a(n) ____ bacterium,
respectively according to the Endosymbiotic Theory.
the most abundant elements found in living cells - CORRECT ANSWER Which of the
following is the best definition of a macronutrient?
a trace element
a vitamin
an organic molecule necessary for life
the most abundant elements found in living cells
Microtubules - CORRECT ANSWER Which following cytoskeletal structures are
found in cilia and flagella?
,Macrotubules
Microtubules
Intermediate filaments
Microfilaments
Autotroph - CORRECT ANSWER Which of the following classifications represents an
organism that obtains its carbon via an inorganic source, such as carbon dioxide?
Autotroph
Heterotroph
Chemotroph
Phototroph
contrast - CORRECT ANSWER Dyes are often used during microscopy to increase
which of the following?
contrast
resolution
motility
magnification
Parasitism - CORRECT ANSWER Which type of symbiotic relationship is
characterized by a population that is benefitted, while the other population is harmed?
Neutralism
Parasitism
Commensalism
Mutualism
proteins - CORRECT ANSWER Amino groups are an important component of which
of the following macromolecules?
lipids
carbohydrates
,nucleic acids
proteins
Composed of two inorganic phosphate molecules - CORRECT ANSWER Which of the
following best characterizes a pyrophosphate?
Component of adenosine monophosphate
Composed of three inorganic phosphates
Contains low energy phosphate bonds
Composed of two inorganic phosphate molecules
- Saturation point: The point of high substrate concentration and plateau of enzyme activity
- Competitive inhibition: Involves the direct binding of an active site of an enzyme and
blocks binding of normal substrate
- Anaerobic respiration: Alternative respiration if environment lacks oxygen and/or genes
encoding cytochrome oxidase
- Protease Hydrolytic: enzyme that cleaves peptide bonds - CORRECT
ANSWER Directions: Match the term on the left with the correct descriptor on the
right.
Saturation point
Competitive inhibition
Anaerobic respiration
Protease
Hemoglobin - CORRECT ANSWER Which of the following does NOT represent an
electron carrier involved in electron transport system?
Cytochrome
Flavoprotein
Hemoglobin
Quinone
, saturated - CORRECT ANSWER Which term specifically describes fatty acids that do
not have any double bonds, triple bonds, or rings?
saturated
unsaturated
esterified
polyunsaturated
Gram-positive cells have thicker peptidoglycan layers in their cell walls than do gram-
negative cells - CORRECT ANSWER Which of the following describes the difference
between gram-positive and gram-negative cells that causes them to stain differently after
Gram staining?
Gram-positive cells have thicker peptidoglycan layers in their cell walls than do gram-
negative cells
Gram-positive cells have capsules and gram-negative cells have S layers.
Gram-positive cells have thicker cell membranes than gram-negative cells.
Gram-positive cells have a mycolic acid layer in their cell walls that holds in stain, whereas
gram-negative cells lack this layer.
pentapeptide cross-link - CORRECT ANSWER Which of the following peptidoglycan
components is NOT found in the Gram-negative bacteria?
N-acetylglucosamine
pentapeptide cross-link
tetrapeptide
N-acetylmuramic acid
phagocytosis - CORRECT ANSWER ___________ involves the cellular transport of
an internalized, large particle within eukaryotic cells.
phagocytosis
pinocytosis
exocytosis
endocytosis
QUESTIONS AND CORRECT ANSWERS
Halophile - CORRECT ANSWER Which extremophile type includes organisms that
can thrive in environments with high salt?
Halophile
Piezophile
Psychrophile
Hyperthermophile
Correct!1 Cytoplasmic membrane
Correct!2 Monotrichous flagella
Correct!3 Nucleoid
Correct!4 Plasmid - CORRECT ANSWER Directions: Please match the numbered box
in the left column with its cellular structure in the right column. Each description is used only
ONCE.
Answer 1: aerobic
Answer 2: photosynthetic - CORRECT ANSWER Eukaryotic mitochondria and
chloroplast are theorized to have been derived from a(n) _____ and a(n) ____ bacterium,
respectively according to the Endosymbiotic Theory.
the most abundant elements found in living cells - CORRECT ANSWER Which of the
following is the best definition of a macronutrient?
a trace element
a vitamin
an organic molecule necessary for life
the most abundant elements found in living cells
Microtubules - CORRECT ANSWER Which following cytoskeletal structures are
found in cilia and flagella?
,Macrotubules
Microtubules
Intermediate filaments
Microfilaments
Autotroph - CORRECT ANSWER Which of the following classifications represents an
organism that obtains its carbon via an inorganic source, such as carbon dioxide?
Autotroph
Heterotroph
Chemotroph
Phototroph
contrast - CORRECT ANSWER Dyes are often used during microscopy to increase
which of the following?
contrast
resolution
motility
magnification
Parasitism - CORRECT ANSWER Which type of symbiotic relationship is
characterized by a population that is benefitted, while the other population is harmed?
Neutralism
Parasitism
Commensalism
Mutualism
proteins - CORRECT ANSWER Amino groups are an important component of which
of the following macromolecules?
lipids
carbohydrates
,nucleic acids
proteins
Composed of two inorganic phosphate molecules - CORRECT ANSWER Which of the
following best characterizes a pyrophosphate?
Component of adenosine monophosphate
Composed of three inorganic phosphates
Contains low energy phosphate bonds
Composed of two inorganic phosphate molecules
- Saturation point: The point of high substrate concentration and plateau of enzyme activity
- Competitive inhibition: Involves the direct binding of an active site of an enzyme and
blocks binding of normal substrate
- Anaerobic respiration: Alternative respiration if environment lacks oxygen and/or genes
encoding cytochrome oxidase
- Protease Hydrolytic: enzyme that cleaves peptide bonds - CORRECT
ANSWER Directions: Match the term on the left with the correct descriptor on the
right.
Saturation point
Competitive inhibition
Anaerobic respiration
Protease
Hemoglobin - CORRECT ANSWER Which of the following does NOT represent an
electron carrier involved in electron transport system?
Cytochrome
Flavoprotein
Hemoglobin
Quinone
, saturated - CORRECT ANSWER Which term specifically describes fatty acids that do
not have any double bonds, triple bonds, or rings?
saturated
unsaturated
esterified
polyunsaturated
Gram-positive cells have thicker peptidoglycan layers in their cell walls than do gram-
negative cells - CORRECT ANSWER Which of the following describes the difference
between gram-positive and gram-negative cells that causes them to stain differently after
Gram staining?
Gram-positive cells have thicker peptidoglycan layers in their cell walls than do gram-
negative cells
Gram-positive cells have capsules and gram-negative cells have S layers.
Gram-positive cells have thicker cell membranes than gram-negative cells.
Gram-positive cells have a mycolic acid layer in their cell walls that holds in stain, whereas
gram-negative cells lack this layer.
pentapeptide cross-link - CORRECT ANSWER Which of the following peptidoglycan
components is NOT found in the Gram-negative bacteria?
N-acetylglucosamine
pentapeptide cross-link
tetrapeptide
N-acetylmuramic acid
phagocytosis - CORRECT ANSWER ___________ involves the cellular transport of
an internalized, large particle within eukaryotic cells.
phagocytosis
pinocytosis
exocytosis
endocytosis
