Which chemical component has the same % in bacterial as well as the mammalian cell_____________?
Correct answer: A. Water
- A. Water
- B. Carbohydrate
- C. Proteins
- D. Lipids
Explanation
Water forms approximately 70% of the mass of both typical bacterial and mammalian cells, although the exact percentage varies with cell type and conditions. Proteins, carbohydrates and lipids differ more markedly in their relative proportions between these cells. Students may choose proteins because they are major cell components, but their percentage is not generally the same in bacteria and mammals.
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About Classification of Biological Molecules
Biological molecules are classified as carbohydrates, lipids, proteins and nucleic acids, with water, minerals and vitamins also supporting cellular processes. The key distinctions involve their monomers, chemical bonds, structures and functions, including glucose and starch, fatty acids and triglycerides, amino acids and polypeptides, and nucleotides in DNA and RNA.
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