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Cell Cultivations

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

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

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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 an abiotic elicitors?

Heavy metal ions
UV irradiation
All of these
Osmotic shock

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Cell Cultivations
The cell mass can be measured optically by determining the amount of light scattered by a suspension of cells. The measurements are usually at a wavelength of

500-600nm
600-700nm
400-500nm
300-400nm

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Cell Cultivations
The protoplast can be used to

all of these
create plant hybrid
study plant viral infections
modify genetic information

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Cell Cultivations
Callus cultures are amorphous cell aggregates arising from the unorganized growth of explants on an

liquid medium
solid or liquid medium
solid nutrient medium
aseptic solid nutrient medium

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