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Cell Cultivations

Cell Cultivations
For most bacteria, the optimum pH for growth lies between

5.5-6.5
3.5-4.5
4.5-5.5
6.5-7.5

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Cell Cultivations
The isolation of the gonorrhoea - causing organisms, Neisseria gonorrhoeae,from a clinical specimen is facilitated by the use of media containing

cellulose
none of these
succinate
certain antibiotics

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Cell Cultivations
Which of the following is an abiotic elicitors?

All of these
Heavy metal ions
Osmotic shock
UV irradiation

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Cell Cultivations
The size of a single plant cell is usually within the range of

40-60μm in diameter and 200-300μm long
10-20μm in diameter and 25-100μm long
60-80μm in diameter and 300-400μm long
20-40μm in diameter and 100-200μm long

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Cell Cultivations
Which of the following is not an indirect method for the measurement of cell mass?

Viscosity
Heat evolution
Cell dry weight
Nutrient composition

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Cell Cultivations
Semi-solid media, prepared with agar at concentrations of 0.5% or less are useful for the cultivation of

E.coli
Microaerophillic bacteria
Lactobacilli
all of these

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