_ is used as a preservative for life specimens.
Correct answer: E. Formalin
- A. H2SO4
- B. Ammonia
- C. Methanol
- D. NaOH
- E. Formalin
Explanation
Formalin is one of the preservatives used to preserve biological specimens. Formalin is used for the preservation of biological specimens. Formalin is 30-40% of the water in Formaldehyde or methanol.
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The chapter covers water's polarity and biological roles, carbohydrates, lipids, proteins and nucleic acids, including their monomers, bonds, structures and functions. It also distinguishes RNA from DNA and explains conjugated molecules such as glycoproteins, glycolipids and nucleoproteins, which combine organic molecules with a non-protein component.
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