Which carbohydrate is primarily found in potatoes and corn?

Starch is the correct answer because it is a complex carbohydrate that serves as a major storage form of energy in many plants, including potatoes and corn. In these vegetables, starch constitutes a significant portion of their carbohydrate content. When consumed, starch is broken down into simpler sugars like glucose during digestion, which the body uses for energy.

Potatoes contain high levels of starch, particularly in their tubers, which account for their starchy texture and functionality in cooking. Corn is also rich in starch, particularly in its kernels, making it an essential agricultural crop for both human consumption and animal feed.

Glucose, while a crucial simple sugar, is not the primary carbohydrate in these foods. Fiber is another important component of plant foods, but it is not in predominant amounts in potatoes and corn compared to starch. Lactose, a sugar found in milk, is also not relevant in this context, as it does not occur in significant quantities in potatoes and corn.