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Cell Cultivations

Cell Cultivations
Radical shifts in pH can be prevented by incorporating

an oxidizing agent
a buffer
any of these
a reducing agent

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Cell Cultivations
Anchorage -dependent cells require

dry surface for growth
nothing to do with the surface
either (a) or (b)
wettable surface for growth

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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

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

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

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

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Cell Cultivations
Stringent anaerobes can be grown in a media by taking special measure as

boiling the media for several minutes
addition of cysteine
passing through oxygen-free nitrogen
any of these

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

Viscosity
Nutrient composition
Heat evolution
Cell dry weight

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