 
			 
			MCQOPTIONS
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				| 1. | Why vortexing is undesirable in the agitation of biological systems? | 
| A. | The collision between the cells, impeller and air bubbles will lead to cell damage | 
| B. | Poor mixing despite the use of high stirrer speeds | 
| C. | Mixing will not be in the turbulent region | 
| D. | All of the above | 
| Answer» E. | |