6. Breaks down and builds up many biological molecules that store vitamin and iron.
Shortened Answer & Explanation:
Enzymes in our body break down and build up biological molecules like vitamins and iron. Here are some examples:
- Iron: Enzymes called ferritin and hemosiderinase break down iron stored in ferritin and hemosiderin, releasing it for use in the body.
- Vitamin C: Enzymes like ascorbic acid oxidase and dehydroascorbate reductase break down and regenerate vitamin C.
- Vitamin A: Enzymes such as retinol dehydrogenase break down retinol into its active form, retinoic acid.
- Vitamin D: Enzymes like 25-hydroxyvitamin D3 1-alpha-hydroxylase convert stored calcidiol into active calcitriol.
Enzymes play a vital role in maintaining nutrient balance and facilitating biological processes in our body.