Which of the Following Statements Regarding Mass Spectrometry Is NOT

question 94

Multiple Choice

Which of the following statements regarding mass spectrometry is NOT true?

• A)Mass spectrometers ionize molecules.
• B)Mass spectrometry can be used to determine empirical and molecular formulas.
• C)The height (intensity) of the signal observed is proportional to the number of ions at that mass-to-charge ratio.
• D)The signal detected at the highest mass-to-charge ratio is often the smallest fragment of the molecule.
• E)Distinctive fragmentation patterns can be used to identify molecules.

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Definitions:

Bronchioles

A part of the respiratory tract that branches from the tertiary bronchi.

Pleura

The membranes that surround the lungs.

Cilia

Microscopic, hair-like structures on the surface of cells that move in a wavelike manner to transport substances or facilitate movement.

Epiglottis

A leaf-shaped flap of cartilage located behind the tongue, at the top of the larynx, which prevents food and drink from entering the windpipe during swallowing.