Term
| What do acid fast stained cells have in their cell walls |
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Definition
| they have Mycolic Acids in their cell walls instead of peptidoglycan |
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Term
|
Definition
| Lack a cell wall and the membrane is stabilized by sterols |
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Term
| Gram Positive after mutation? |
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Definition
| after loss of cell wall by mutation or chemical treatment it is a PROTOPLAST |
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Term
| Gram Negative after mutation? |
|
Definition
| after loss of cell wall by mutation or chemical treatment it is a SHEROPLAST |
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Term
|
Definition
-gelatinous solution
-site for many biochemical and synthetic
- 70-80% water
- contain larger discrete cell masses (chromatin body, ribosomes, granules, actin strands) |
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Term
|
Definition
| in a singular circular strand in NUCLEOID REGION |
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Term
|
Definition
-non essential pieces of double stranded circles of DNA
- often confer protective traits such as drug resistance of the production of toxins and enzymes |
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Term
|
Definition
- machinary needed to make protein
-they are made of RNA and protein
-special type of RNA-ribosomal RNA (rRNA_ |
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Term
| How are Ribosomes characterized? |
|
Definition
by S untis
the prokaryotic ribosomes is 70S
humans 80S |
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Term
|
Definition
| Stock pile of fats, glycogen, phosphates, iron oxide |
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Term
|
Definition
| Play important role in moving things |
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Term
|
Definition
| dormant bodies produced by both gram-positive and gram-negative. (positive is more medically relavat) |
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Term
| Two phases of endospore life cycle |
|
Definition
| vegetative cell and endospore |
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Term
| What is stimulus for sporulation? |
|
Definition
|
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Term
| What does a vegetative cell undergo...? |
|
Definition
| conversion to a sporangium, then sporangium transforms into an endospore |
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Term
| Endospore Formation process |
|
Definition
|
|
Term
| What conditions can an Endopore withstand |
|
Definition
EXTREMES!
-heat, drying, freezing, radiation and chemicals |
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|
Term
| Why do endospores have high hear resistnace |
|
Definition
| they have a high content of calcium and dipicolinic acid |
|
|
Term
|
Definition
-forms a new vegetative cell
-breaking of dormancy
-about 1.5 hours |
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Term
| Medical Significance of Endospores? |
|
Definition
| resist ordinary cleaning products |
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Term
|
Definition
|
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Term
|
Definition
rod-shaped
sub categories
-coccobacillus
-vibrio |
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Term
|
Definition
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Term
|
Definition
|
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Term
|
Definition
Curviform or spiral-shaped
sub categories
-pleomorphism |
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Term
|
Definition
| when cells of a single species vary to some extent in shape and size |
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Term
|
Definition
-single
-pairs
-TETRADS
-irregular clusters
-chains
-cubical |
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Term
|
Definition
-single
-pair
-chain
-row of cells oriented side by side |
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Term
|
Definition
a species is a collection of bacterial cells, all of which share an overall similar pattern of traits
-individual members of a bacterial species can show variations |
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Term
|
Definition
-prokaryotic cells
-found in extreme environments
-important non-pathogens |
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