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Microbiology Quiz 1 ( Part 1 )

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Univeristy Microbiology Quiz on Microbiology Quiz 1 ( Part 1 ), created by Laura Pepe on 30/01/2020.
Laura Pepe
Quiz by Laura Pepe, updated more than 1 year ago
Laura Pepe
Created by Laura Pepe almost 5 years ago
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Resource summary

Question 1

Question
Eukarya are closely related to which organism?
Answer
  • Humans
  • Prokaryotes
  • Archaea
  • Microbes

Question 2

Question
The 16s gene codes for which organisms?
Answer
  • Eukaryotes
  • Prokaryotes
  • Archaea
  • Bacteria

Question 3

Question
The 18s gene codes for [blank_start]eukaryotes[blank_end].
Answer
  • eukaryotes

Question 4

Question
16s and 18s are subunits of the ribosome.
Answer
  • True
  • False

Question 5

Question
What is TRUE about Gram-positive bacteria?
Answer
  • Stain pink or red
  • Thicker, primarily one layer of peptidoglycan
  • Contain both N-acetylglucosamine and N-Acetylmuramic acid
  • Contain teichoic acid in their cell walls
  • Has an LPS layer
  • No cell wall

Question 6

Question
Gram-negative has many interconnected peptidoglycan subunits.
Answer
  • True
  • False

Question 7

Question
Identify which is gram-negative or gram-positive.
Image:
Picture1 (binary/octet-stream)
Answer
  • Gram-positive
  • Gram-negative

Question 8

Question
What is TRUE about gram-negative bacterial cell walls?
Answer
  • Multiple layers of peptidoglycan
  • Many interconnected peptidoglycans subunits
  • Contains an LPS layer
  • Stains pink or red
  • Periplasmic space contains endotoxin
  • Has Braun Lipoprotein
  • Few peptidoglycans subunits connected

Question 9

Question
Mycoplasm have a cell wall
Answer
  • True
  • False

Question 10

Question
Treating gram positives with antibiotics that inhibit cell wall synthesis forms [blank_start]protoplasts[blank_end].
Answer
  • protoplasts

Question 11

Question
Treating gram negatives with antibiotics that inhibit cell wall synthesis forms [blank_start]spheroplasts[blank_end].
Answer
  • spheroplasts

Question 12

Question
Mycobacteria are
Answer
  • Alkaline-fast
  • Acid-fast
  • Gram-positive
  • Gram-negative
  • Neither gram-positive or gram-positive

Question 13

Question
D amino acids are found in the cell walls of bacteria
Answer
  • True
  • False

Question 14

Question
Archaea contain which bonds?
Answer
  • Ether bonds
  • Ester bonds
  • Covalent Bonds
  • Ionic Bonds
  • James Bond

Question 15

Question
Archaea contains fatty acids instead of isoprenes.
Answer
  • True
  • False

Question 16

Question
Archaea has [blank_start]L-glycerol[blank_end] instead of [blank_start]D-glycerol[blank_end].
Answer
  • D-glycerol
  • L-glycerol
  • L-glycerol
  • D-glycerol

Question 17

Question
What is found in archaeal cell walls?
Answer
  • L-glycerol
  • Murein
  • D-glycerol
  • Pseudomirein
  • S-layer
  • Repeating paracrystalline subunits

Question 18

Question
Capsule layer and S layers protect prokaryotes from their environments. What is the capsule and s layer made of?
Answer
  • The capsule is made of polysaccharides S layer is crystalline proteins or glycoproteins
  • The capsule is made of proteins or polysaccharides S layer is paracrystalline proteins or glycoproteins
  • The capsule is made of mitochondria S layer is paracrystalline glucose
  • The capsule is made of saturated polysaccharides S layer is paracrystalline fatty proteins

Question 19

Question
Bacteria have N-Acetylmuramic and N-acetylglucosamine acid but Archaea do not.
Answer
  • True
  • False

Question 20

Question
Label on the picture below which bacteria are gram-negative or gram-positive.
Image:
Image (binary/octet-stream)
Answer
  • Gram-negative
  • Gram-positive

Question 21

Question
Mycobacteria cause which of the following diseases?
Answer
  • Aids
  • Leprosy
  • Tuberculosis
  • Coronavirus
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