Answer:
solid, naturally occurring, inorganic, fixed composition, crystal form.
Explanation:
Vitamin C is the water soluble vitamin that can regenerate vitamin E after it has been oxidized. Because vitamin C is an acid, it is reasonably stable in acidic solutions, but in neutral or basic solutions it is easily and rapidly oxidized by dissolved oxygen. The oxidation of vitamin C, Ascorbic acid, is brought about by the loss of two hydrogen atoms as the vitamin is converted to dehydroascorbic acid. Vitamin C functions as antioxidant, assists in synthesis of collagen, a component of the connective tissue, synthesis of DNA, bile, neurotransmitters, thyroid and other hormones.
Answer:
first question:The nucleus is particularly important among eukaryotic organelles because it is the location of a cell's DNA. Two other critical organelles are mitochondria and chloroplasts, which play important roles in energy conversion and are thought to have their evolutionary origins as simple single-celled organisms
:second question: The DNA in prokaryotes is contained in a central area of the cell called the nucleoid, which is not surrounded by a nuclear membrane.
