Types of Respiration Quiz - CBSE Class 7 Science

Free practice quiz: Types of Respiration (CBSE Class 7 Science). 19 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

This CBSE Class 7 Science practice quiz has 19 multiple-choice questions on Types of Respiration, and 19 of them come with an explanation. Try the 5 sample questions below (tap an option to check yourself), then play the full quiz online. No sign-up needed.

Sample questions

1. What is aerobic respiration?

   1. Respiration using oxygen
   2. Respiration without oxygen
   3. Respiration using carbon dioxide
   4. Respiration using hydrogen
   Show answer

   Answer: A. Respiration using oxygen

   Aerobic respiration requires oxygen to produce energy.

2. Why can humans sometimes switch briefly to anaerobic respiration?

   1. During intense exercise
   2. When sleeping
   3. When eating
   4. When drinking water
   Show answer

   Answer: A. During intense exercise

   During intense exercise, oxygen supply may not meet demand, so muscles switch to anaerobic respiration for energy.

3. Which type of respiration produces more ATP?

   1. Aerobic respiration
   2. Anaerobic respiration
   3. Both produce the same
   4. Neither produce ATP
   Show answer

   Answer: A. Aerobic respiration

   Aerobic respiration produces significantly more ATP compared to anaerobic respiration.

4. Which environment might favor anaerobic respiration?

   1. Waterlogged soils
   2. Well-ventilated areas
   3. High altitudes
   4. Tropical rainforests
   Show answer

   Answer: A. Waterlogged soils

   Anaerobic respiration is favored in environments with low oxygen availability, like waterlogged soils.

5. Which process can occur both in the presence and absence of oxygen?

   1. Glycolysis
   2. Krebs cycle
   3. Electron transport chain
   4. Photosynthesis
   Show answer

   Answer: A. Glycolysis

   Glycolysis, the first step in both aerobic and anaerobic respiration, can occur with or without oxygen.

More questions in this quiz

Answers and explanations are in the full quiz.

1. Which of the following is an example of anaerobic respiration?
2. Which organism commonly uses anaerobic respiration due to lack of oxygen?
3. What is produced during anaerobic respiration in muscles?
4. Which process occurs in the mitochondria of cells?
5. Which gas is essential for aerobic respiration to occur?
6. What is the main difference between aerobic and anaerobic respiration?
7. What is one disadvantage of anaerobic respiration for humans?
8. How does anaerobic respiration aid athletes during short, intense bursts of activity?
9. Which byproduct is common in both aerobic and anaerobic respiration?
10. What is the main energy-carrying molecule produced in respiration?
11. Why is aerobic respiration considered more efficient than anaerobic respiration?
12. In which part of the cell does anaerobic respiration occur?
13. How does the buildup of lactic acid affect muscle performance?
14. What happens to the oxygen consumption rate during heavy exercise?

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