The Three Themes of the Text Are

question 61

Short Answer

The three themes of the text are:

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Definitions:

Nucleotide

The basic building block of nucleic acids, such as DNA and RNA, consisting of a base (adenine, cytosine, guanine, thymine in DNA; adenine, cytosine, guanine, uracil in RNA), a molecule of sugar (deoxyribose in DNA and ribose in RNA), and a phosphate group.

Base

A substance that accepts protons from acids according to the Brønsted-Lowry acid-base theory and has a high pH in solution.

Sugar

A sweet-tasting carbohydrate that is used as a source of energy in living organisms.

Protein

Large biomolecules consisting of one or more chains of amino acids, crucial for the structure, function, and regulation of the body's cells, tissues, and organs.