The Movement of Gas and Air into and Out of the Lungs

question 31

Multiple Choice

The movement of gas and air into and out of the lungs is called:

• A)perfusion.
• B)ventilation.
• C)respiration.
• D)diffusion.

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Definitions:

Albino

An individual lacking normal pigmentation due to a genetic condition that affects the production of melanin in the skin, hair, and eyes.

Homozygous

State of having identical allelic genes at one or more paired loci in homologous chromosomes.

Pigmentation

The coloring of a person's skin, hair, or eyes due to the deposition of melanin, a natural pigment produced by certain cells called melanocytes.

Incomplete Dominance

A genetic phenomenon where the phenotype of a heterozygote is intermediate between the phenotypes of the two homozygotes.