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