Overview Of The Microbial World Flashcards
Father of Protozoology and bacteriology
Anton Van Leeuwenhoek
First to discovered the RBC.
Anton Van Leeuwenhoek
Bacteria can be unicellular or multicellular?
Unicellular
Eu=
Pro=
Karyo=
-True
-False
-Nucleus
An organism that lacks a nuclear membrane and true nucleus.
Bacteria
Are bacteria prokaryotes or eukaryotes? And why.
Prokaryotes because they don’t have true nuclei.
T or F
Are all parasites eukaryotes?
True- they can be uni or multicellular.
They are unicellular organisms within the kingdom of Protista that obtain their nutrients through ingestion.
Protozoa
Most common multicellular parasites.
-tapeworm, Ascaris lubricoides
What are the 3 locomotive structures of parasites?
Flagella(whip-like)
Cilia(eyelash)
Pseudopodia(false feet)
T or F
All fungi are prokaryotes.
False, Fungi are eukaryotes and as such have a complex cellular organization.
Which is/are true about Fungi??
A. Heterotrophic eukaryotes
B. Obtain nutrients through absorption
C. Prokaryotes
D. Can be yeast or molds
Answer: A,B,D
Which is/ are true about Yeast?
A. It is a fungus
B. They are all unicellular
C. They can be both uni/multicellular
D. They have hyphae and mycelia
Answer: A,B
T or F
Yeast and molds can be produced asexually and sexually.
False- yeast can only be produced asexually.
Fungi can be___.
A. Either yeast or molds only
B. Can be both morphologies of yeast and molds
C. Both
D. Neither
C.
Type of fungi that can grow in incubator as yeast and filamentous form at room temp.
Dimorphic fungi
Which is/are true about the virus?
A. They can only observe through symptoms.
B. They can be eukaryotes or prokaryotes
C. Obligates intracellular parasites
D. Smallest pathogenic microorganism
Answer: A, C,D
T or F
Viruses can consist DNA, RNA or Both.
False- viruse can’t contain both.
Only:
dsDNA
ssDNA
dsRNA
ssRNA
Why viruses are obligates intracellular parasites?
For replication and metabolism purposes.
Which is/are false about viruses?
A. They are acellular
B. They have cytoplasmic membrane
C. They consist of a protein coat
D. They can grow and multiply
Asnswer: B,D
- viruse can’t grow in its size
It is a virus that infects and possibly destroys bacterial cells.
Bacteriophage.
(Phage means to eat)
How to differentiate the virus order, family,and genera?
A. By organization and type of genome.
B. How viruse replicates
C. Virion structure of the virus
All of the Above
Arrange the order of the size of pathogenic microorganisms in descending order
Fungi-Parasites- Bacteria- Virus
Bodies of multicellular fungi composed of?
Fillament(hyphae) and form mats (mycelia)
