Ans: Aerobic Respiration:
- Requires oxygen.
- Occurs in the mitochondria.
- Produces a large amount of energy (ATP).
- End products are carbon dioxide and water.
- Reaction Involved in Aerobic Reaction: C6H12O6 +6O2 →6CO2 +6H2O+ energy (ATP)
Anaerobic Respiration:
- Does not require oxygen.
- Occurs in the cytoplasm.
- Produces less energy (ATP) compared to aerobic respiration.
- End products vary (e.g., lactic acid in animals, ethanol, and carbon dioxide in yeast).
- The reaction involved in Anaerobic Reaction: Lactic Acid Fermentation: C6H12O6 →2C3H6O3 +2 ATP and Alcoholic Fermentation: C6H12O6 →2C2H5OH+2CO2 +2ATP
Some organisms that use anaerobic respiration include yeast (for fermentation) and some bacteria. In humans, muscle cells can also undergo anaerobic respiration temporarily during intense exercise, leading to the production of lactic acid.
MCQs Based on the above question
Question 1: Which of the following statements accurately describes a difference between aerobic and anaerobic respiration?
A) Aerobic respiration occurs in the cytoplasm, while anaerobic respiration occurs in the mitochondria.
B) Aerobic respiration produces more ATP compared to anaerobic respiration.
C) Anaerobic respiration requires oxygen for energy production.
D) The end products of aerobic respiration include lactic acid
Answer: B) Aerobic respiration produces more ATP compared to anaerobic respiration.
Question 2: In which organelle does aerobic respiration primarily take place?
A) Nucleus
B) Ribosome
C) Golgi apparatus
D) Mitochondria
Answer: D) Mitochondria
Question 3: Which of the following is a characteristic of anaerobic respiration?
A) Requires oxygen
B) Occurs in the mitochondria
C) Produces carbon dioxide and water
D) Yields less ATP compared to aerobic respiration
Answer: D) Yields less ATP compared to aerobic respiration
Question 4: Which organisms commonly use anaerobic respiration?
A) Plants and algae
B) Fish and mammals
C) Yeast and some bacteria
D) Birds and reptiles
Answer: C) Yeast and some bacteria