In General, Diving Mammals Have Lung Volumes (Per Unit Mass)

question 33

Multiple Choice

In general, diving mammals have lung volumes (per unit mass) that are _______ those of terrestrial mammals.

• A) 4 times greater than
• B) 2 times greater than
• C) similar to
• D) 2 times less than

---

Definitions:

Amphipathic

A molecule having both hydrophilic (water-loving) and hydrophobic (water-repelling) parts.

Phospholipids

A class of lipids that are a major component of all cell membranes, consisting of two fatty acids, a phosphate group, and a glycerol molecule.

Fatty Acids

Long chains of hydrocarbon molecules with a carboxylic acid group, which are components of lipids and play roles in energy storage and cellular structure.

Potassium Ion

A positively charged ion (K+) essential for various biological processes, including nerve transmission and muscle contraction.