What Usually Happens to the Energy During an Energy Transformation

question 1

Multiple Choice

What usually happens to the energy during an energy transformation? 

• A) It ends up as chemical energy that performs useful work. 
• B) It ends up as low-quality heat energy that flows into the environment. 
• C) It ends up as electrical energy that performs useful work. 
• D) It ends up as mechanical energy that performs useful work.

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Definitions:

Antigens

Substances that when introduced into the body stimulate the production of antibodies, triggering an immune response.

Primary Immune Response

The initial reaction of the immune system when exposed to an antigen for the first time.

Memory Cells

A type of white blood cell that retains a memory of previously encountered pathogens and mounts a stronger and faster response upon reexposure.

Antigen

A substance that when introduced into the body, prompts the generation of an immune response by the production of antibodies.