Peroxisomes

question 45

Multiple Choice

Peroxisomes

• A) use an enzyme to destroy H₂O₂ that is toxic to the cell.
• B) are a type of lysosome.
• C) are responsible for the atrophy of unused muscles.
• D) are sites for synthesis of fatty acids, steroids, and phospholipids.
• E) All of the answers accurately describe peroxisomes.

---

Definitions:

Cellular Respiration

Pathway that uses an electron transfer chain to harvest energy from an organic molecule and make ATP. See aerobic respiration.

Glucose Molecules

A simple sugar that is an important energy source in living organisms and a component of many carbohydrates.

ATP Synthesis

The process by which energy is stored in the form of adenosine triphosphate (ATP) in cells, commonly occurring in the mitochondria via cellular respiration.

Electron Transfer Chain

In a cell membrane, series of enzymes and other molecules that accept and give up electrons, thus releasing the energy of the electrons in small, usable steps.