In Precipitation Tests, the Antigen ______

question 21

Multiple Choice

In precipitation tests, the antigen ______.

• A) is a soluble molecule
• B) -antibody complex settles to the bottom of the tube
• C) is a whole cell
• D) is an insoluble molecule

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Definitions:

Carbon Dioxide

A colorless, odorless gas produced by burning carbon and organic compounds and by respiration, absorbed by plants in photosynthesis.

Oxygen

A chemical element with symbol O and atomic number 8, essential for most forms of life on Earth, particularly as a component of the air we breathe.

Calcium Hydroxide Experiment

A scientific experiment typically involving the use of calcium hydroxide, a compound with formula Ca(OH)2, to explore its chemical properties or reactions.

CO₂

Carbon dioxide, a colorless, odorless gas produced by burning carbon and organic compounds and by respiration. It is absorbed by plants in photosynthesis.