The principal energy storage carbohydrate in animals is:
Correct answer: D. Glycogen
- A. Glucose
- B. Starch
- C. Protein
- D. Glycogen
Explanation
Glycogen is the principal energy storage carbohydrate in animals. It is a highly branched polymer of glucose molecules and is stored in the liver and muscle cells. Glycogen is synthesized from glucose by a process called glycogenesis and broken down into glucose by a process called glycogenolysis. When blood glucose levels are low, glycogen is broken down to release glucose into the bloodstream to maintain a constant supply of energy for the body
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Proteins are classified by shape, composition and structure, from primary amino acid sequence to secondary, tertiary and quaternary organisation, and their biological roles are linked to this structure. Enzymes are examined as protein biocatalysts, including active sites, substrate specificity, activation energy, cofactors and factors affecting activity.
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