Which of the Following Help Prevent the Entrance of Microorganisms

question 37

Multiple Choice

Which of the following help prevent the entrance of microorganisms into the body?

• A) Coughing and sneezing
• B) Acidic nature of urine
• C) Hydrochloric acid in the stomach
• D) Mucus in the nose and respiratory tract
• E) All of the above

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Definitions:

Hydrogen Bonded

Describes a type of chemical bond that occurs when a hydrogen atom, which is covalently bonded to a highly electronegative atom, forms an electrostatic or partial covalent bond with another electronegative atom.

Tertiary Amides

Amides derived from carboxylic acids where the nitrogen atom is bonded to three other carbon atoms, not including the carbonyl carbon.

Secondary Amides

Organic compounds characterized by a carbonyl group (C=O) attached to a nitrogen atom, which in turn is bonded to two alkyl or aryl groups.

Acid Chlorides

Reactive derivatives of carboxylic acids where the hydroxyl group is replaced with a chlorine atom, used in organic synthesis.