Respiration

Question 1

What is aerobic respiration?

Answer 1

Aerobic respiration is the breakdown of nutrient molecules in the presence of oxygen to release energy.

Question 2

What is the word and chemical equation for aerobic respiration?

Answer 2

Word equation:
* Glucose + Oxygen → Water + Carbon Dioxide + ATP (energy)

Chemical equation:
* C6H12O6 + 6O2 → 6H2O + 6CO2 + ATP

Question 3

Where does aerobic respiration take place?

Answer 3

It occurs in the mitochondria of the cell.

Question 4

What is anaerobic respiration?

Answer 4

Anaerobic respiration is the breakdown of nutrient molecules in the absence of oxygen to release energy.

Question 5

What is the word equation for anaerobic respiration in yeast cells?

Answer 5

Glucose → Ethanol + Carbon Dioxide

Question 6

What is the word equation for anaerobic respiration in muscle cells?

Answer 6

Glucose → Lactic Acid

Question 7

Where does anaerobic respiration take place?

Answer 7

It occurs in the cytoplasm of the cell.

Question 8

Compare between areobic and anaerobic respiration. (4 points each)

Answer 8

Aerobic Respiration
* Occurs in presence of oxygen
* Takes place in mitochondria
* Produces more ATP (energy)
* Waste products: Water + Carbon Dioxide

Anaerobic Respiration
* Occurs in absence of oxygen
* Takes place in cytoplasm
* Produces less ATP (energy)
* Waste products:
1. Yeast cells: Ethanol + CO₂
2. Muscle cells: Lactic acid |