Final answer:
Glycogen is the storage form of glucose in animals, whereas starch serves as the glucose storage form in plants. The correct answer is c) glycogen; starch. Glycogen is stored in animal cells and starch in plant parts like roots and seeds.
Step-by-step explanation:
In animals, glycogen is the storage form of glucose, while starch is the storage form in plants. Therefore, the correct answer to the question is c) glycogen; starch. Glycogen is a highly branched polymer composed of glucose units and is usually stored in liver and muscle cells of animals. When blood glucose levels decrease, glycogen is broken down in a process called glycogenolysis to release glucose.
In contrast, starch is the storage form of energy in plants, containing two types of glucose polymers: amylose, which is linear, and amylopectin, which is branched. Starch is synthesized by plants when they have an excess of glucose and it is stored in different parts such as roots and seeds. When consumed by animals, starch is broken down into simpler molecules like glucose, which can then be absorbed by the cells.