VTAH 140 VETERINARY
MICROBIOLOGY AND IMMUNOLOGY
MOD- 1 EXAM
Microbiology - Correct Answers -Microbiology is the study of microscopic organisms,
such as bacteria, viruses, fungi, protozoa, archaea
Microbes - Correct Answers -They breakdown food into usable molecules that are
absorbed into our bloodstream
Prokaryotes (bacteria) - Correct Answers -No nucleus or membrane bound organelles,
one but not true chromosomes: plasmids, usually unicellular, EX: bacteria and archaea,
Cytoplasm - Correct Answers --Mostly composed of water
Other components:
-Enzymes
-Essential nutrients
-Proteins, Carbohydrates, and Lipids
-Nucleic Acids (DNA, RNA)
-Ribosomes
-Waste products
Pili - Correct Answers --Long, thick hair-like structures made of polymerized protein
molecules
-Originate from the cytoskeleton and traverse the cell wall and capsule
-Used to attach to colonize a surface
-In some species of bacteria pili are used for sexual reproduction.
-Not used for motility
Fimbriae - Correct Answers --Tiny bristle-like structures distributed evenly over the
entire surface of the bacterial cell.
-Aid in attaching to surfaces
-Not used for motility
Gram Positive - Correct Answers --Refers to the color produced when
stained by the Gram Method
-Gram Positive stain BLUE
-Thick uniform cell wall composed of mainly peptidoglycan.
MICROBIOLOGY AND IMMUNOLOGY
MOD- 1 EXAM
Microbiology - Correct Answers -Microbiology is the study of microscopic organisms,
such as bacteria, viruses, fungi, protozoa, archaea
Microbes - Correct Answers -They breakdown food into usable molecules that are
absorbed into our bloodstream
Prokaryotes (bacteria) - Correct Answers -No nucleus or membrane bound organelles,
one but not true chromosomes: plasmids, usually unicellular, EX: bacteria and archaea,
Cytoplasm - Correct Answers --Mostly composed of water
Other components:
-Enzymes
-Essential nutrients
-Proteins, Carbohydrates, and Lipids
-Nucleic Acids (DNA, RNA)
-Ribosomes
-Waste products
Pili - Correct Answers --Long, thick hair-like structures made of polymerized protein
molecules
-Originate from the cytoskeleton and traverse the cell wall and capsule
-Used to attach to colonize a surface
-In some species of bacteria pili are used for sexual reproduction.
-Not used for motility
Fimbriae - Correct Answers --Tiny bristle-like structures distributed evenly over the
entire surface of the bacterial cell.
-Aid in attaching to surfaces
-Not used for motility
Gram Positive - Correct Answers --Refers to the color produced when
stained by the Gram Method
-Gram Positive stain BLUE
-Thick uniform cell wall composed of mainly peptidoglycan.
