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Unformatted text preview: butthe
surface has not increased in similar porportions Plamid Ribosomes Flagellum
Plasma membrane Capsule Peptidoglycan layer
Figure 20.3 BIO1130 Organismal Biology
Université d’Ottawa / University of Ottawa Bacterial cell walls Gram positive plasmid secret to the DNA
2:39 PM Capsule Gram postitive and gram negative bacteria.
strategy for identifying different types of bacteria
Showing a certain stain.
Gram positive: capable of being treated with pennicillin
If gram negative it would not be treateable with penicillin leading to
devellopment of different types of drugs. (may be present) Peptidoglycan
Cytoplasm Figure 20.6a BIO1130 Organismal Biology
Université d’Ottawa / University of Ottawa BIO1130 Organismal Biology 12
2:39 PM Page 4 Archean eon Bacterial cell walls Capsule
(may not be present) Gram negative
layer outer bilipid layer, peptidoglycan layer smaller and beneath.
stain has no access to peptidoglycan layer
Important stratgy in 50s
Little or no relevance
This is a morphological way of identifying.
Example of mo...
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