You Are Performing a Gram Stain on Gram- Negative Bacteria

question 45

Multiple Choice

You are performing a Gram stain on gram- negative bacteria and you stop after the decolorizer step. What is the appearance of the bacteria at this point?

• A) purple
• B) brown
• C) colorless
• D) red

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Definitions:

Theta Waves

Brainwave patterns associated with stages 1 and 2 of sleep, meditation, and some cognitive processes, typically in the 4-8 Hz frequency range.

EEG Brain-Wave

Refers to the electrical activity in the brain, as recorded by an electroencephalogram (EEG), showing patterns known as brain waves.

Slow-Wave Sleep

A deep phase of sleep characterized by low frequency, high amplitude brain waves, crucial for physical and cognitive restoration.

Sleep Stages 3 And 4

Deep stages of sleep, also known as slow-wave sleep, characterized by slow brain waves, limited muscle activity, and deep physical relaxation.