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.

Sample questions

1. What is aerobic respiration?

   1. Respiration using oxygen
   2. Respiration without oxygen
   3. Respiration using carbon dioxide
   4. Respiration using hydrogen
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   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
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   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
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   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
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   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
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   Answer: A. Glycolysis

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

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