After eating half of a banana as a snack, you decide to save the rest for later. There are two types of plastic wrap in your house and you use one to cover the banana. In an hour you return and find that your banana half has browned significantly despite being saved in plastic wrap. You discover that one of the plastic wraps is made of polyvinyl and the other is made of polyethylene. Which plastic wrap could have caused this browning effect and why?
1. B. The polyethylene wrap probably caused the browning since it contains ethylene which would speed up the ripening process.
2. C. Abscisic acid regulates water loss in plants by making plants close their stomata during hot weather
3. B. the concentrations of ethylene spray
4. A. In stems, auxin accumulation and fell elongation will occur on the side that is away from the light source
5. 1. growth away from sunlight
2. growth towards sunlights
2 answers
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1 answer