Which Is the Correct Description of a Molecule

question 50

Multiple Choice

Which is the correct description of a molecule?

• A) It is an electrically charged atom.
• B) It cannot be broken down physically.
• C) It is comprised of two or more elements bonded together.
• D) It is the smallest unit of matter.
• E) It is comprised of two or more atoms sharing electrons.

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Definitions:

Gene Expression

Multistep process by which the information in a gene guides assembly of an RNA or protein product. Includes transcription and translation.

DNA

Deoxyribonucleic acid, a molecule that carries the genetic instructions used in the growth, development, functioning, and reproduction of all known living organisms.

RNA

Ribonucleic acid. Nucleic acid with roles in gene expression. Most are single-stranded chains of ribonucleotides (adenine, guanine, cytosine, and uracil). See messenger RNA, transfer RNA, ribosomal RNA.

Protein

Organic molecule that consists of one or more polypeptides.