Organismic
Cellular
Both of these
None of these
✅ The correct answer is option B.
Gaseous Exchange MCQs
2. ______ respiration is the process by which cell utilized oxygen and produces CO2
Cellular
Organismic
Both of these
None of these
✅ The correct answer is option A.
3. Of the following, which one is a better respiratory medium.
Air
Water
Soil
None of these
✅ The correct answer is option A.
4. Oxygen content per liter of air is
10 ml
100 ml
200 ml
100ml
✅ The correct answer is option C.
5. Water is _____ times viscous than air
50
1000
5000
8000
✅ The correct answer is option A.
6. There are ______ stomata per square cm of leaf surface in Tobacco plants.
1200
12000
100,000
1000
✅ The correct answer is option B.
7. The air spaces may comprise up to ______ of the total volume of leaf surface.
30%
20%
40%
50%
✅ The correct answer is option C.
8. The glycolate produced diffuses into the membrane-bounded organelles called
Glyoxisomes
Peroxisomes
Lysosomes
Mitochondria
✅ The correct answer is option B.
9. The active site of Rubisco is evolved to bind
CO2
O2
Both of these
H2O
✅ The correct answer is option C.
10. Number of spiracles present in a cockroach is
15
10
20
30
✅ The correct answer is option C.