Inside an Active Mitochondrion, Most Electrons Follow Which Pathway

question 46

Multiple Choice

Inside an active mitochondrion, most electrons follow which pathway?

• A) NADH → oxidative phosphorylation → ATP → oxygen
• B) citric acid cycle → FADH₂ → electron transport chain → ATP
• C) electron transport chain → citric acid cycle → ATP → oxygen
• D) citric acid cycle → ATP → NADH → oxygen
• E) citric acid cycle → NADH → electron transport chain → oxygen

---

Definitions:

Lipoproteins

Complex particles composed of lipids and proteins that transport fats through the bloodstream.

VLDL

Very Low-Density Lipoprotein, a type of lipoprotein that carries triglycerides from the liver to tissues in the body.

LDL

Low-density lipoprotein, often called "bad" cholesterol, associated with increased risk of heart disease.

HDL

High-Density Lipoprotein, often referred to as "good" cholesterol, which helps to remove bad cholesterol from the bloodstream.