ICSE Class 10 Respiration in Plants — Mock Test

Free online mock test for Respiration in Plants (ICSE Class 10 Botany) — 75 competency-based questions with instant marking. Try the samples below, then take the full test free.

Sample questions

1. 1.The ratio of the volume of CO2 evolved to the volume of O2 consumed in respiration is called the:
   • A.Respiratory quotient
   • B.Compensation point
   • C.Photosynthetic ratio
   • D.Energy charge
2. 2.When proteins are the respiratory substrates, the respiratory quotient would be about:
   • A.1.0
   • B.0.9
   • C.0.7
   • D.0.5
3. 3.The respiratory pathway is described as an amphibolic pathway because
   • A.It involves both anabolism and catabolism
   • B.It occurs only in the cytoplasm
   • C.It releases only heat energy
   • D.It uses only glucose as a substrate
4. 4.Assertion (A): Plants do not possess any specialised organs for gaseous exchange. Reason (R): Each plant part takes care of its own gas-exchange needs through stomata and lenticels, with little transport of gases from one part to another.
   • A.Both A and R are true and R is the correct explanation of A
   • B.Both A and R are true but R is NOT the correct explanation of A
   • C.A is true but R is false
   • D.A is false but R is true
5. 5.The net gain of ATP from the complete aerobic respiration of one molecule of glucose is
   • A.2
   • B.12
   • C.38
   • D.4