Animal cells store energy in the form of _________, and plant cells store energy in the form of ___________.

• A. Sucrose ; glucose.
• B. Disaccharides ; monosaccharides.
• C. Starch ; glycogen.
• D. Cellulose ; chitin.
• E. Glycogen ; starch.

Answer: (E)

Verified step by step guidance

1. Understand the context: Animal and plant cells store energy in different forms. This is due to their distinct biological functions and structures.
2. Identify the energy storage molecule in animal cells: Animals store energy primarily in the form of glycogen, a polysaccharide that serves as a form of energy storage in animals and fungi.
3. Identify the energy storage molecule in plant cells: Plants store energy in the form of starch, which is a polysaccharide consisting of numerous glucose units joined by glycosidic bonds.
4. Compare the structures: Glycogen and starch are both polysaccharides, but glycogen is more highly branched than starch, which affects how they are metabolized and stored.
5. Apply this knowledge to the problem: Recognize that the correct answer is 'Glycogen ; starch' based on the typical energy storage forms in animal and plant cells.