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
yes he’s right trust
i can confirm, i was having trouble with these answers thanks for the help my guy
The correct answer is:
1. B. The polyethylene wrap probably caused the browning since it contains ethylene which would speed up the ripening process.
Polyethylene wrap is made from polyethylene, a type of plastic that does not allow gases to pass through easily. However, ethylene, a natural plant hormone, is an exception and can diffuse through the plastic wrap. Ethylene is known to accelerate the ripening process in fruits, including the browning of bananas. Therefore, using polyethylene wrap could have caused the browning effect on the banana half.
The correct answer is option 1. B. The polyethylene wrap probably caused the browning since it contains ethylene which would speed up the ripening process.
To determine the correct answer, we need to understand the properties of the two types of plastic wraps and their potential effects on the banana.
Polyvinyl and polyethylene are two different types of plastics commonly used for food packaging. Polyethylene is a more common type of plastic wrap, typically used for wrapping food items. It is commonly used because it is transparent, flexible, and has good moisture resistance.
Ethylene is a gaseous plant hormone that plays a crucial role in fruit ripening. It is naturally produced by many fruits, including bananas, and acts as a ripening agent. Ethylene triggers the release of enzymes that break down starches into sugars, resulting in a ripe and sweet fruit.
If the plastic wrap is made of polyethylene, it is possible that it contains trace amounts of ethylene. Even though the plastic wrap is designed to provide a barrier to moisture and air, small amounts of ethylene gas can still pass through. This can accelerate the ripening process and lead to the browning of the banana.
On the other hand, polyvinyl does not contain ethylene or any other ripening agents. Therefore, it is less likely to cause the browning effect on the banana.
To conclude, the polyethylene wrap could have caused the browning effect on the banana because it contains ethylene, which can accelerate the ripening process.