Which of the Following Statements Is Not True of the Amino

question 60

Multiple Choice

Which of the following statements is not true of the amino acids?

• A)There are more than 60 different kinds of amino acids present in cells.
• B)The R group of amino acids differs from one amino acid to another.
• C)Only around 20 amino acids are used in protein synthesis.
• D)All amino acids exist in two stereoisomeric forms.
• E)Amino acids have an N-terminus, C-terminus, and R groups.

---

Definitions:

Surfactant

A substance that reduces surface tension between two liquids, or between a liquid and a gas, used extensively in medical treatment, especially in neonatal care to aid in breathing.

Alveoli

Tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide occurs.

Sinoatrial Node

A group of cells located in the right atrium of the heart that spontaneously generates electrical impulses, acting as the heart's natural pacemaker.

Heart Rate

The number of heartbeats per minute, a vital sign indicating the heart's activity.