Our Current Understanding of the Origin of Eukaryotic Organelles Such

question 9

Multiple Choice

Our current understanding of the origin of eukaryotic organelles such as mitochondria is that they

• A)were copies of a cell nucleus that failed to be separated by cytokinesis.
• B)were prokaryotes that were taken into a cell and now live there symbiotically.
• C)were variations of the plasma membrane.
• D)were new forms of life that arose inside other cells.

---

Definitions:

Depressed

A state characterized by feelings of severe despondency and dejection, often a symptom of a psychological disorder.

Chemical Digestion

The breakdown of complex food molecules into simpler ones through chemical reactions, involving enzymes and other digestive substances.

Lacteal

Lymphatic vessel in an intestinal villus; aids in the absorption of fats.

Fats

Fats are a group of organic compounds that are insoluble in water, serve as a major energy source for the body, and are crucial for cell structure and function.