Lab Flashcards by Sean Belton | Brainscape

Q

Commensal

A

Host unaffected

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Q

Resevoir

A

Source of infection outside host

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Q

Tree shape on slant

A

Arborescent

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Q

Thick band on slant

A

Filiform

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Q

Thick band with undulations on slant

A

Echinulate

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Q

Thin branching strands on slant

A

Rhizoidal

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Q

Layer on broth surface

A

Pellicle

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Q

Stuff at bottom of broth

A

Sediment

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Q

Strands in margin

A

filamentous

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Q

Wiggly margin of colony

A

Erose

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Q

Pin point colonies on agar

A

Punctiform

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Q

Lens shaped colonies in the agar

A

Lenticulate growth

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Q

Dilution factor

A

Final/Initial

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Q

Dilution

A

Initial/Final

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Q

Psychrophile temps

A

down to 0 optimum at 10-15

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Q

thermophile temp

A

Grow at 55+

Q

Can survive high temps but doesn’t thrive

A

Thermoduric

Q

Thermal death point

A

Temperature to kill everything in 10 minutes

Q

optimum UV wavelength for killing bacteria

A

260 nm

Q

pyrimidines

A

Cytosine and thymine

Q

Countable range of colonies

A

30-300

Q

2 types of UV repair Enzymes

A

Dark reactive and photoreactive

Q

Enzymes that work outside the cell

A

Exoenzymes

Q

Enzymes that work inside the cell

A

Endoenzymes

Q

Enzyme that breaks down hydrogen peroxide

A

Catalase

Q

2 Enzymes that produce H2S

A

Cysteine Desulfhydrase and thiosulfate reductase

Q

Enzyme that breaks down urea

A

urease

Q

Final enzyme in anarobic ETC with nitrate as a TEA

A

Reductase

Q

Enzyme that breaks down gelatin

A

Gelatinase

Q

What is gelatin made of?

A

Proteins, partial breakdown of collagen

Q

Most UV resistant bacteria we used

A

Bacillus Subtilis

Q

Bacillus Stearothermophilus growth temp

A

55C

Q

Bacteria that produces H2S

A

Proteus Vulgaris

Q

Producer of prodigiosin pigment

A

Serratia Marcescens

Q

3 genera that don’t produce catalase despite living with O2

A

Streptococcus, Enterococcus and lactobacillus

Q

species that reduce nitrate

A

P. Vulgaris and P.Aeruginosa