0
Yes. As a banana ripens, a chemical process converts the starch into sugar. Just about everything in life can be explained as a chemical process because everything contains molecules, all of which undergo chemical processes.
It is chemical.
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.
The browning of a banana slice is a chemical change. This occurs due to the oxidation of phenolic compounds in the banana when exposed to oxygen, leading to the formation of brown pigments.
It's practically rusting, except for bananas. The enzyme present in the banana, polyphenol oxidase, reacts with oxygen to change the color of the banana.
Add your answer:
Earn +20 pts
Is slicing a banana a physical change or chemical change?
It's a physical change, because no chemicals are changing if I cut a banana.
Is mashing a banana a chemical change or physical change?
This is a physical change, because you are only changing the physical appearance, not the substance's chemical properties.
Is a ripened banana a physical change?
It would not be a physical change. A physical change is when anything changes in state of matter. (solid, liquid, and gas). Unless your banana liquified it is not a physical change. Hope that helps! ;)
Is ripening of banana a physical or chemical change?
Ripening of a banana is a chemical change. It involves the breakdown of complex molecules in the banana fruit into simpler molecules due to enzymatic activity, resulting in changes in color, texture, and flavor.
Is a piece of avocado turning brown a chemical change or a physical change?
The browning of an avocado is a chemical change. This process, known as oxidation, occurs when enzymes in the avocado interact with oxygen in the air, causing a change in the chemical composition of the fruit.
Is slicing a banana a physical change or chemical change?
It's a physical change, because no chemicals are changing if I cut a banana.
Is Slicing a banana a physical or chemical change?
Purely physical.
Is a rotting banana a chemical or physical change?
It's a chemical change
Is mashing a banana a chemical change or physical change?
This is a physical change, because you are only changing the physical appearance, not the substance's chemical properties.
Is slicing a banana a physical change?
well it depend are you talking about just a banana or a cake or its both.... well if your talking about a banana. the banana is physcial change +++ Fruit ripening is chemical.
Is mashing banana physical or chemical?
Mashing a banana is a physical change because it does not alter the chemical composition of the banana. The act of mashing simply changes the physical appearance and texture of the banana without creating any new substances.
Is bannan turning rotten a chemical or physical change?
This is a chemical change.
Is turning of copper into green when exposed into environment physical or chemical change?
It is a chemical change.
Is turning cloudy a chemical change?
No, turning cloudy is a physical change. It involves a change in the appearance or state of a substance without changing its chemical composition.
Is dissecting a banana a chemical reaction or a reversible change?
Dissecting a banana is a physical change, not a chemical reaction. It involves physically separating the banana into smaller pieces, but the chemical composition of the banana doesn't change. A reversible change would be when you freeze the banana slices and then thaw them, as this can be reversed.
If you put a banana in a warm cupboard for a week will it turn black and will it be chemical or physical change?
If you put a banana in a warm cupboard for a week, the likelyhood of it turning black is very high. This is a chemical change, as it is caused by the internal decomposition (breaking down) of the sugars contained by the fruit. Please note for future that a physical change is in nearly always a change in state, including disolvsion in a solvent.
Freezing banana and chocolate Physical of chemical?
Freezing or melting anything is a physical change because the chemical composition is not changing.
