The Walls of the Alveoli Are Composed of Two Types

question 57

Multiple Choice

The walls of the alveoli are composed of two types of cells,type I and type II alveolar cells.The function of type II alveolar cells is to ________.

• A) replace mucus in the alveoli
• B) protect the lungs from bacterial invasion
• C) trap dust and other debris
• D) secrete surfactant

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Definitions:

Clock Speed

The speed at which a microprocessor executes instructions, measured in hertz (Hz), affecting the performance of a computer or device.

Access Time

The time needed to access information from a memory or storage device.

Cache Memory

A small-sized type of volatile computer memory that provides high-speed data access to the processor and stores frequently used computer programs, applications, and data.

CPU

The Central Processing Unit is the main element in a computer responsible for carrying out the majority of computational tasks.