Refer to the Following Paragraph and Accompanying Figure to Answer

question 48

Multiple Choice

Refer to the following paragraph and accompanying figure to answer the following question(s) .
-Gramicidin is an antibiotic that increases the permeability of bacterial cell walls to inorganic ions. What is the most likely mode of action of gramicidin?

• A) It acts by active transport.
• B) It causes membranes to fuse with one another.
• C) It forms a channel in the membrane.
• D) It removes electrical charges from solutes.

Learn how live-streaming video apps like Periscope can be used for public engagement.

Understand the unique aspects of platforms like Pinterest for organizing and sharing web content.

Recognize the importance of choosing the right social media platforms for specific content types, like live video streaming or instructional videos.

Appreciate the role of fourth screen technology in user interaction and the prioritization of personalized content.

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Definitions:

Construct Validity

The degree to which a test measures what it claims to be measuring, specifically in terms of whether the test actually assesses the theoretical construct it is designed to measure.

Predictive Validity

The level at which a score from a test or scale forecasts subsequent performance on a connected result.

Content Validity

Refers to the extent to which a test measures an intended content area.

Concurrent Validity

The degree to which the results of a test correlate with the results of other established measures taken at the same time.