Which of the Following Statements Are True of the Alveoli

question 150

Multiple Choice

Which of the following statements are true of the alveoli and pulmonary capillaries? (Read carefully and select all of the correct statements.)

• A)Blood coming into the pulmonary capillaries is low in O₂ and high in CO₂.
• B)The alveolar walls are one cell in thickness.
• C)The total alveoli provide a large surface area for gas exchange.
• D)The pulmonary capillaries are made of simple squamous epithelium.
• E)Type II alveolar cells secrete pulmonary surfactant to increase the osmosis of gases.
• F)Blood leaving the pulmonary capillaries will return to the left atrium of the heart.

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Definitions:

Crepuscular

Crepuscular animals are those that are active primarily during twilight, that is, at dawn and dusk, taking advantage of lower light conditions.

Aposematic Coloration

The conspicuous coloring of a poisonous or distasteful organism that enables potential predators to easily see and recognize it. Also called warning coloration. Compare with cryptic coloration.

Habituation

A simple form of learning where an organism eventually stops responding to a stimulus after repeated exposures, without any reward or punishment.

Worker Bees

Female bees that are not queens and perform all the work tasks necessary for colony survival.