What Is Usability

question 67

Multiple Choice

What is usability?

• A) The system is easy to learn and efficient and satisfying to use
• B) The system functions correctly and provides accurate information
• C) The system allows varying levels of access
• D) The system quickly transforms to support environmental changes

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Definitions:

Noncyclic Electron Transport

In photosynthesis, the linear flow of electrons, produced by photolysis of water, through photosystems II and I; results in the formation of ATP (by chemiosmosis), NADPH, and O2. Compare with cyclic electron transport.

Absorption Spectra

Absorption spectra are the range of wavelengths or frequencies of light absorbed by a substance, each substance having a unique spectrum that can be used to identify it or analyze its properties.

Pigments

Substances that produce color in materials by absorbing certain wavelengths of light and reflecting others, found in nature in plants, animals, and minerals.

Visible Light

The portion of the electromagnetic spectrum that is visible to the human eye, ranging approximately from 380 to 750 nanometers in wavelength.