When an Electron in an Atom Goes from a Higher

question 27

Multiple Choice

When an electron in an atom goes from a higher energy state to a lower energy state, the atom

• A)absorbs a photon of a specific frequency.
• B)absorbs several photons of a specific frequency.
• C)can absorb a photon of any frequency.
• D)can emit a photon of any frequency.
• E)emits a photon of a specific frequency.

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Definitions:

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.

Initiator tRNA

A special type of transfer RNA that begins the process of translating a mRNA molecule to a protein by carrying the first amino acid of the protein.