Protists Use Cilia to Move Within Their Habitat,but Ciliated Human

question 55

Multiple Choice

Protists use cilia to move within their habitat,but ciliated human cells like those in the bronchi are always anchored to one another and to an extracellular matrix; what benefit does cilia provide these cells?

• A) Ciliary movement can dislodge infective bacteria before they permanently fasten to the plasma membrane.
• B) The oxygen content of the extracellular fluid can be increased by agitation with cilia.
• C) Ciliary movement can create currents that move secretions like mucus over the surface of a tissue.
• D) Ciliary movement can lead to the eventual release of cells from a cell layer when necessary.

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Definitions:

Subcultures

Groups exhibiting unique patterns of values and philosophies not consistent with the dominant culture of the larger organization or system.

Ethnic

Relating to a population subgroup with a common national or cultural tradition, often characterized by distinct language, culture, and sometimes physical characteristics.

Internal Adaptation

The process by which an organization or organism adjusts to changes within its internal environment.

Collective Experience

The shared knowledge, practices, or feelings among a group of people, derived from common activities or historical events.