Classifications Flashcards
The traditional method of placing an organism into particular genus and species are based from what characteristics?
Phenotypic characteristics.
In diagnostic microbiology laboratory, the classification is base on ____
Metabolic characteristics and comparing the results with those listed in established charts.
Species may be subdivided into subspecies based on what?
Subspecies
Serovarities
Biovarities
Each domain is divided into kingdoms based on the similarities of ___.
RNA, DNA and protein sequences.
Which is/are eukaryotic in nature?
A. Fungi
B. Protozoa
C. Algae
D. E. Coli.
A. B. C.
T or F
Domain archaea cell type appears to be more closely related to eukaryotic cells than prokaryotes.
True
Difference between eubacteria and archaeabacteria.
archaebacteria are usually found in extreme environmental conditions, whereas eubacteria are found everywhere on earth.
Which is/are true about in archaebacteria?
A. They are eukaryotic cell
B. They have true nucleus
C. Their cell walls lack peptidoglycan
D. They can be found everywhere
C.
T or F
Archaebacteria can be performed in gram staining.
False
Which statement/s is/are true about archaea ?
A. Gram stain positive have thick wall and stain purple.
B. Gram stain negative have thin wall and stain pink.
C. Gram stain positive has a layer of protein covering the cell wall and stain purple.
D. Gram stain negative has a layer of protein covering the cell wall and stain pink.
A and D
Why can archaea survive in extreme environment?
It is because of their cell envelope structure and enzymes.
Lovers of extreme: extremophiles
Salt loving cells :
Heat loving cells:
-halophiles
- thermophiles
They are prokaryotic cells that infect eukaryotic hosts.
Pathogenic bacteria
Solutions to inhibit or kill pathogenic bacteria in the body.
Antibiotics
Why some bacteria are resistant to certain antibiotics?
Through mutation and selection, bacteria can develop defense mechanisms against antibiotics
