The Hydrophilic Head of a Phospholipid Is Composed of

question 70

Multiple Choice

The hydrophilic head of a phospholipid is composed of

• A) a cholesterol group,a phosphate group,and a glycerol molecule.
• B) a choline group,a phosphate group,and a glycerol molecule.
• C) a cholesterol group,a phosphate group,and a glycine molecule.
• D) a choline group,a phosphorous atom,and a glycerol molecule.
• E) a choline group,a phosphorous atom,and a glycine molecule.

---

Definitions:

Central Chemoreceptors

Sensory receptors located in the central nervous system that primarily detect changes in the acidity (pH) of cerebrospinal fluid.

Medulla Oblongata

The lower portion of the brainstem, controlling vital bodily functions such as breathing, heart rate, and blood pressure.

Carbon Dioxide

A colorless, odorless gas produced by burning carbon and organic compounds and by respiration. It is naturally present in air and is absorbed by plants in photosynthesis.

Hydrogen Ions

Positively charged ions (H+) formed when hydrogen atoms lose their electrons, significantly influencing the pH of solutions.