The potato is a large root (tuber) made of starch stored by the potato plant. It is designed to feed the "eyes" or sprouting nodes that would re-emerge when spring comes.
The inside of a potato is usually a translucent white, a large mass of undifferentiated starch. However, some varieties of potatoes are a very pale tan or yellow.
The atoms inside a potato are normal. You have combinations of different atoms to make different molecules which make different substances. In a potato, you might have some potassium (K) and some...