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Yes
It is due to a defense mechanism in the fruit, which is activated when the fruit is cut from the tree.
There are three main factors involved in the ripening and browning process, they are: enzymes, oxygen and phenols. Enzymes are protein-like substances that speed up or initiate chemical reactions. Phenols are defensive mechanisms the plant uses to fend off insects and microbes. The specific enzyme is called polyphenoloxidase. When the banana is attacked, the phenols are activated in the presence of oxygen by this enzyme. In this process the brown color is produced as a side effect. The first time the banana is attacked is when it is cut from the tree. Exposure to cold air, certain gases, and physical damage of the fruit will hasten the process.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoi don't know but if they have starch that's why??? i think answer asap
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Is rotting bananas a chemical change?
Yes, many chemical changes as various microorganisms eat the bananas.
Are rotten bananas a physical or chemical change?
yes because it gets rotten so is a chemical change
Is Slicing a banana a physical or chemical change?
Purely physical.
Is black crust a physical or chemical change?
Chemical, the black spots are the compound silver sulfide.
When a black soot formed as a candle burns is it a chemical change?
Yes. That is a chemical change.
Black smoke from candle physical change or chemical change?
chemical change Madison and Kayla were here ;)
Is black tea a physical change or chemical change?
physical change
When glass turns black from fire is it a physical or chemical change?
chemical
Why are bananas purple?
For most people, they are not. Bananas are traditionally yellow, but can be green if underripened or black (sometimes yellow and black-speckled during the change) if overripe. There is a purple variety, as well as red and yellow
Is bananas turning black a chemical or physical reaction?
The answer is actually microorganisms.In school we did a topic about it so it will be chemicals. Aleema hope it helpedxx
Is peeling of bananas a physical change?
Yes. While peeling a banana, no new substance is obtained. There is no change in it's chemical composition. Hence it is a physical change.
Is wood becoming charred and black from burning a chemical change?
yes charring of wood is chemical change
