Microbiology Exam 1 (MCB 2010) Questions with Complete Solutions 100% Solved| Grade A+
Chemotaxis Movement that occurs in response to chemical stimulus
Phototaxis movement in response to light
Aerotaxis Movment in response to oxygen
Monotrichous single flagellum
Lophotrichous A tuft/ Custer of flagella coming from one pole
Amphitrichous flagella at both poles of the cell
Peritrichous flagella all over
Fimbriae are used for? Attachment
Pili -Used to adhere to surfaces, move
and aid in gene transfer through conjugation
-longer, more ridged and less numerous compared to Fimbriae
Pseudomurein Found in the cell walls of archaea
Endospores -Dormant form of bacteria
-Form when bacteria are stressed
, What medically relevant species make endospores? -Bacillus
-Clostridium
-Clostridioides
Eukaryotic Cells usually divide by? Mitosis
How many ribosomes do EUKARYOTIC cells contain? 80s
Endosymbiotic Theory Chloroplasts and mitochondria were once single cell organisms that
were engulfed by primitive Pro-Eurkaryotic cells.
Mycology is the study of? FUNGI
What are mycoses? Diseases caused by fungi
What are Dermatophytes? -True pathogens
-Infect skin, hair, and nails
Dimorphic Fungi Can be mold-like or yeast like depending on the environment
Phagocytosis The ingestion of large molecules and cells
Phagocytosis steps 1.Attachment of microbe (or molecule) to membrane
2.Ingestion of molecule or microbe into a PHAGOSOME.
3.Phagosome fuses with lysosome to form phagolysosome
4.Digestion occurs
5.Residual waste discarded.
Chemotaxis Movement that occurs in response to chemical stimulus
Phototaxis movement in response to light
Aerotaxis Movment in response to oxygen
Monotrichous single flagellum
Lophotrichous A tuft/ Custer of flagella coming from one pole
Amphitrichous flagella at both poles of the cell
Peritrichous flagella all over
Fimbriae are used for? Attachment
Pili -Used to adhere to surfaces, move
and aid in gene transfer through conjugation
-longer, more ridged and less numerous compared to Fimbriae
Pseudomurein Found in the cell walls of archaea
Endospores -Dormant form of bacteria
-Form when bacteria are stressed
, What medically relevant species make endospores? -Bacillus
-Clostridium
-Clostridioides
Eukaryotic Cells usually divide by? Mitosis
How many ribosomes do EUKARYOTIC cells contain? 80s
Endosymbiotic Theory Chloroplasts and mitochondria were once single cell organisms that
were engulfed by primitive Pro-Eurkaryotic cells.
Mycology is the study of? FUNGI
What are mycoses? Diseases caused by fungi
What are Dermatophytes? -True pathogens
-Infect skin, hair, and nails
Dimorphic Fungi Can be mold-like or yeast like depending on the environment
Phagocytosis The ingestion of large molecules and cells
Phagocytosis steps 1.Attachment of microbe (or molecule) to membrane
2.Ingestion of molecule or microbe into a PHAGOSOME.
3.Phagosome fuses with lysosome to form phagolysosome
4.Digestion occurs
5.Residual waste discarded.
