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Angelina_Jolie [31]
3 years ago
8

If the enzyme polyphenoloxidase is part of a potato's defense against herbivores, what do we expect to see when looking at activ

ity of extracts of peeled potatoes?
Biology
1 answer:
Y_Kistochka [10]3 years ago
8 0
Herbivores are organisms that feed on plants. Plants have different mechanisms of defending against herbivores, mostly by synthesizing compounds that give the plants a bitter or unpleasant taste. The synthesis of these molecules is intensified when the plant and its cells suffer physical damage, so, in the case of peeled potatoes, there should be an increase in activity of this protective enzyme.
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A. Felsic

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The rock would be classified as a FELSIC rock based on its appearance.

To classify a rock based on its appearance, we would rely more on the features we can observe when we look at it. Some of the features are colour and mineral grains. We can also use its feel, cleavage, and some other physical properties.

Looking at the picture, the rock is light coloured. The mineral grains also have a fine texture because the mineral boundaries cannot easily be resolved by naked eyes.

A light coloured igneous rock is said to be FELSIC with a rich composition of silica and feldspars. Mafic igneous rocks are usually dark and have low silica contents.

From the texture of the mineral grains, we know the rock is an extrusive rock. It must have formed on the surface or very close to the surface. This implies that, the minerals could not grow into larger crystals. They cooled rapidly on encountering surface temperatures.

A rock of this type is a Rhyolite. The intrusive equivalent is granite. Granite differs from Rhyolite because they have large mineral crystals. They are both felsic.

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