20684530
Descripción
Test por Laura Pepe, actualizado hace más de 1 año
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Creado por Laura Pepe
hace casi 5 años
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Pregunta 1
Pregunta
Eukarya are closely related to which organism?
Respuesta
-
Humans
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Prokaryotes
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Archaea
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Microbes
Pregunta 2
Pregunta
The 16s gene codes for which organisms?
Respuesta
-
Eukaryotes
-
Prokaryotes
-
Archaea
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Bacteria
Pregunta 3
Pregunta
The 18s gene codes for [blank_start]eukaryotes[blank_end].
Respuesta
-
eukaryotes
Pregunta 4
Pregunta
16s and 18s are subunits of the ribosome.
Respuesta
- True
- False
Pregunta 5
Pregunta
What is TRUE about Gram-positive bacteria?
Respuesta
-
Stain pink or red
-
Thicker, primarily one layer of peptidoglycan
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Contain both N-acetylglucosamine and N-Acetylmuramic acid
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Contain teichoic acid in their cell walls
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Has an LPS layer
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No cell wall
Pregunta 6
Pregunta
Gram-negative has many interconnected peptidoglycan subunits.
Respuesta
- True
- False
Pregunta 7
Respuesta
-
Gram-positive
-
Gram-negative
Pregunta 8
Pregunta
What is TRUE about gram-negative bacterial cell walls?
Respuesta
-
Multiple layers of peptidoglycan
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Many interconnected peptidoglycans subunits
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Contains an LPS layer
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Stains pink or red
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Periplasmic space contains endotoxin
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Has Braun Lipoprotein
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Few peptidoglycans subunits connected
Pregunta 9
Pregunta
Mycoplasm have a cell wall
Respuesta
- True
- False
Pregunta 10
Pregunta
Treating gram positives with antibiotics that inhibit cell wall synthesis forms [blank_start]protoplasts[blank_end].
Respuesta
-
protoplasts
Pregunta 11
Pregunta
Treating gram negatives with antibiotics that inhibit cell wall synthesis forms [blank_start]spheroplasts[blank_end].
Respuesta
-
spheroplasts
Pregunta 12
Pregunta
Mycobacteria are
Respuesta
-
Alkaline-fast
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Acid-fast
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Gram-positive
-
Gram-negative
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Neither gram-positive or gram-positive
Pregunta 13
Pregunta
D amino acids are found in the cell walls of bacteria
Respuesta
- True
- False
Pregunta 14
Pregunta
Archaea contain which bonds?
Respuesta
-
Ether bonds
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Ester bonds
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Covalent Bonds
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Ionic Bonds
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James Bond
Pregunta 15
Pregunta
Archaea contains fatty acids instead of isoprenes.
Respuesta
- True
- False
Pregunta 16
Pregunta
Archaea has [blank_start]L-glycerol[blank_end] instead of [blank_start]D-glycerol[blank_end].
Respuesta
-
D-glycerol
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L-glycerol
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L-glycerol
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D-glycerol
Pregunta 17
Pregunta
What is found in archaeal cell walls?
Respuesta
-
L-glycerol
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Murein
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D-glycerol
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Pseudomirein
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S-layer
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Repeating paracrystalline subunits
Pregunta 18
Pregunta
Capsule layer and S layers protect prokaryotes from their environments. What is the capsule and s layer made of?
Respuesta
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The capsule is made of polysaccharides S layer is crystalline proteins or glycoproteins
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The capsule is made of proteins or polysaccharides S layer is paracrystalline proteins or glycoproteins
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The capsule is made of mitochondria S layer is paracrystalline glucose
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The capsule is made of saturated polysaccharides S layer is paracrystalline fatty proteins
Pregunta 19
Pregunta
Bacteria have N-Acetylmuramic and N-acetylglucosamine acid but Archaea do not.
Respuesta
- True
- False
Pregunta 20
Pregunta
Label on the picture below which bacteria are gram-negative or gram-positive.
Image:
Image (binary/octet-stream)
Respuesta
-
Gram-negative
-
Gram-positive
Pregunta 21
Pregunta
Mycobacteria cause which of the following diseases?
Respuesta
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Aids
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Leprosy
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Tuberculosis
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Coronavirus
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