The Primary Structure of a Protein Is

question 25

Multiple Choice

The primary structure of a protein is

• A)composed of two or more polypeptide chains.
• B)an a helix or a pleated sheet.
• C)the amino acid sequence of the polypeptide chain.
• D)maintained by hydrogen bonds.

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Definitions:

Vena Cava

Large systemic vein that returns blood to the right atrium of the heart in tetrapods; either the superior or inferior vena cava.

Antihistamine

A type of medication that blocks histamine receptors and is used to treat allergic reactions by reducing symptoms like nasal congestion, sneezing, or itching.

Histamine

Substance, produced by basophils in blood and mast cells in connective tissue, that causes capillaries to dilate.

Capillary Dilation

The enlargement or widening of blood capillaries, which can increase blood flow and reduce blood pressure.