ICSE Class 10 Photosynthesis in Higher Plants — Mock Test

Free online mock test for Photosynthesis in Higher Plants (ICSE Class 10 Botany) — 78 competency-based questions with instant marking. Try the samples below, then take the full test free.

Sample questions

1. 1.Assertion (A): Cyclic photophosphorylation results only in the synthesis of ATP and not of NADPH. Reason (R): The stroma lamellae membranes have only PS I and lack PS II as well as NADP reductase enzyme.
   • 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
2. 2.Photosystem I and Photosystem II are named:
   • A.In the sequence in which they function during the light reaction
   • B.In the sequence of their discovery
   • C.By the wavelength they reflect
   • D.By their position in the stroma
3. 3.![calvin_cycle.png]() In the figure, the Regeneration step (stage 3) consumes ATP and produces ADP. What is the direct outcome of this regeneration stage in the Calvin cycle?
   • A.Re-formation of the CO2 acceptor Ribulose-1,5-bisphosphate
   • B.Direct formation of glucose from triose phosphate
   • C.Splitting of water to release oxygen
   • D.Synthesis of NADPH from NADP+
4. 4.RuBisCO carries out more carboxylation in C4 plants because
   • A.the bundle sheath cells maintain a high concentration of CO2 at the enzyme site
   • B.the enzyme is structurally different in C4 plants
   • C.the mesophyll cells supply extra O2 to the enzyme
   • D.C4 plants lack the enzyme PEP carboxylase
5. 5.To make one molecule of glucose through the Calvin pathway, the number of ATP and NADPH molecules consumed respectively is
   • A.12 ATP and 18 NADPH
   • B.18 ATP and 12 NADPH
   • C.6 ATP and 12 NADPH
   • D.18 ATP and 18 NADPH