Which Best Describes the Main Role of Adenosine Triphosphate (ATP)

question 27

Multiple Choice

Which best describes the main role of adenosine triphosphate (ATP) ?

• A) It is an amino acid that is part of polypeptide chains that serve structural functions within cells.
• B) It is a nucleotide that makes up the backbone of DNA and RNA molecules, that harbor the genetic code.
• C) It is a carbohydrate molecule that can be stored in large quantities in the liver to energize cellular processes.
• D) It is a purine derivative created from the breakdown of fuel molecules, that transfers energy for cellular processes.
• E) It is a waste product of aerobic metabolism that is excreted from the body by the kidneys.

Understand the basic principles of electrical testing and diagnostics in vehicle systems.

Learn about the operational principles of vehicle electronic devices and their components.

Understand safety precautions for starting and charging systems.

Identify and utilize the proper tools and tests for diagnosing starting and charging system issues.

---

Definitions:

Epididymis

A long, coiled tube that stores and carries sperm from the testes to the vas deferens.

Sperm

Male reproductive cells designed to fertilize female ovum, crucial for sexual reproduction.

Corpora Cavernosa

Two columns of erectile tissue found in the penis, which fill with blood during arousal to facilitate erection.

Erectile Tissue

consists of spongy tissue that can fill with blood and become firm, found in parts of the body such as the penis and clitoris.