An Antigen Is

question 8

Multiple Choice

An antigen is

• A) a foreign substance that stimulates immunity.
• B) a substance used to make gels for DNA electrophoresis.
• C) a naturally occurring insecticide.
• D) a genetic marker found in most plasmids.
• E) a molecule necessary for PCR.

Explain the role of environmental factors and physical activity on brain development and function.

Understand the basis and impact of federal acts on air and water pollution control.

Recognize the purpose and requirements of Environmental Impact Statements.

Identify the goals and enforcement mechanisms of the Clean Water Act.

---

Definitions:

Preparatory Reaction

A phase in cellular respiration where pyruvate from glycolysis is converted into acetyl-CoA, enabling the next steps in energy production.

Cellular Respiration

The metabolic process in which cells break down sugars to generate energy in the form of ATP, involving pathways like glycolysis and the Krebs cycle.

Carbon Dioxide

Originating from the combustion of carbonaceous materials and the process of respiration, this gas lacks color and smell. It is a naturally existing element of air that plants use in photosynthesis.

Citric Acid Cycle

The Citric Acid Cycle, also known as the Krebs cycle, is a sequence of chemical reactions used by all aerobic organisms to release stored energy through the oxidation of acetyl-CoA derived from carbohydrates, fats, and proteins.