MCQs Botany-39 Posted on October 22, 2025December 3, 2025Author agropublishers 0 MCQs Botany-39 1. What is the primary function of the Calvin Cycle? To fix CO2 into glucose To generate ATP and NADPH To split water To produce oxygen 2. __________ is the primary product of photolysis in light reactions Oxygen ATP NADPH Glucose 3. Light-dependent reactions occur in _________ chloroplasts Outer membrane Inner membrane Thylakoid membranes Stroma 4. The Richmond–Lang effect refers to the delay of ________ in plant tissues due to cytokinins. Photomorphogenesis Abscission Cell division Senescence 5. Soil organic matter is primarily composed of which of the following major elements? C, O, Si, Fe, Al C, N, K, Fe, Mn, Cu C, N, Cl, Na, Mg C, H, O, N, S, P 6. Tomato (Solanum lycopersicum) has a diploid chromosome number (2n) of _____________. 18 12 24 10 7. The most resistant and stable component of soil organic matter, contributing to humus formation, is ________ Cellulose Lignin Hemicellulose Peptides 8. ______________ are called “amphibians of Kingdom Plantae” Gymnosperms Bryophytes Algae Pteridophytes 9. _________ is a gymnosperm species known as the “living fossil” Ephedra gerardiana Ginkgo biloba Cycas revoluta Pinus wallichiana 10. What is the energy source for the Calvin Cycle? Glucose Oxygen ATP and NADPH Light Loading … Question 1 of 10
