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Which of the following terms refers to carbohydrates composed of two monosaccharides?
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4. Biomolecules
Carbohydrates
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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.
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Understand the context: Animal and plant cells store energy in different forms. This is due to their distinct biological functions and structures.
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.
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.
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.
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.
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