<span>enzymes are resuable as they are biologically catalyst which speeds up the rate of a reaction without being chemically changed themselves. However, if the enzyme is to be denatured under unfavourable conditions (extreme temperatures, extreme pH), the enzymes may not be reusable once denatured.</span>
Answer: a stain with no other chemicals or detergents added to it should be the control group
Explanation: A control group is defined as as an experiment or study that does NOT relieve any treatment by the researchers so the stain would not have any treatment added to it
You should always, and I mean always, use a <u>coverslip</u> on your slide. Without it, the contents on it would slip off and there'd be a big mess.
For extra security:
<em>Always make sure your stage clips are working! :)</em>
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I hope I helped! :)
<span>If at the end of the chromatography process there is an observation that the solution is bright green, the most likely explanation is the presence of Chlorophyll a.</span>