In Mass Spectrometry, a Molecule Is Ionized and Its Migration

question 11

Multiple Choice

In mass spectrometry, a molecule is ionized and its migration rate in an electrical field is determined. What information does the migration rate tell about the molecule?

• A) It indicates mass because small molecules migrate more rapidly than larger molecules.
• B) It indicates electrical charge because negatively charged molecules migrate more rapidly than positively charged molecules.
• C) It indicates the solubility of the molecule because insoluble molecules form aggregates and migrate much more slowly than soluble molecules.
• D) It indicates the relative abundance of the molecule in the sample.
• E) It indicates the complexity of the proteome because greater proteome diversity takes a longer time to process.

---

Definitions:

Plant Cell Division

The process by which a plant cell splits into two daughter cells, typically involving phases such as cytokinesis following mitosis or meiosis.

Cell Plate

The structure formed during plant cell cytokinesis, which eventually develops into a new cell wall, separating the two daughter cells.

Cell Cycle

The cell cycle is the ordered series of events involving cell growth and cell division that produces two new daughter cells.

Chromosomes

Thread-like structures located in the nucleus of cells that carry genetic information in the form of genes.