Scientists Estimate That the Average Human Cell Contains About _____

question 22

Multiple Choice

Scientists estimate that the average human cell contains about _____ genes.

• A) 200-250
• B) 20,000-25,000
• C) 200,000-250,000
• D) 2,000,000-250,000,000

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Definitions:

Citric Acid Cycle

A sequence of biochemical processes undergone by every organism that uses oxygen to produce energy by oxidizing acetate, which comes from carbohydrates, fats, and proteins.

Acetyl CoA

A central molecule in metabolism, used in biochemical reactions for energy production and synthesis of fatty acids.

Aerobic Respiration

The process of producing cellular energy involving oxygen. Cells break down food in the mitochondria in a long, multistep process that produces roughly 36 ATP.

Nitrate

A compound containing nitrogen and oxygen (NO3-) that is a vital plant nutrient and can also be found in water supplies, where high levels can be harmful to health.