A Layer of Smooth Muscle in the Wall of This

question 9

Multiple Choice

A layer of smooth muscle in the wall of this tiny air -conducting tube allows it to regulate its diameter.

• A) Larynx
• B) Pharynx
• C) Alveolus
• D) Bronchiole
• E) Trachea

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Definitions:

Turn

In a molecular context, a turn refers to a type of secondary structure in proteins where the chain makes a sharp change in direction.

Glycolysis

The metabolic pathway that converts glucose into pyruvate, producing ATP and NADH in the process, functioning in the cytoplasm of the cell.

Aerobic Respiration

The metabolic process in which cells convert glucose and oxygen into energy, carbon dioxide, and water; it is the primary method of energy production in animals.

Acetyl CoA

A central molecule in metabolism that conveys the carbon atoms within the acetyl group to the tricarboxylic acid cycle to be oxidized for energy production.