Use the Following to Answer the Questions Below

question 12

Multiple Choice

Use the following to answer the questions below:
In each of the following multiple-choice questions, characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices:
-Statements:
(1) Fats and oils have the same general chemical structure.
(2) Biological waxes have a three-component "block diagram."
(3) In facilitated transport, a substance crosses a cell membrane with the help of a protein "pump."

• A) All three statements are true.
• B) Two of the three statements are true.
• C) Only one of the statements is true.
• D) None of the statements is true.

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Definitions:

Cilia

Microscopic, hair-like structures on the surface of cells that move rhythmically to transport substances or facilitate movement.

Respiratory System

Organ system of humans that includes the lungs and associated structures; involved in the exchange of gases; helps control pH.

Lung Cancer

Uncontrolled cell growth that affects any component of the respiratory system.

Pneumonectomy

A surgical procedure to remove one lung, often performed to treat lung cancer or severe lung disease.