MCQs Botany-9 Posted on 2024-06-302024-11-08Author admin 0 MCQs Botany-9 1. Ozone-depleting substances include —————–. Sulfur oxide Carbon dioxide Chlorofluorocarbon and chlorohydrocarbon Methane 2. There are total ——— essential elements are required for normal plant growth 12 9 20 17 3. ————- is the remains of ancient plants and animals that are converted into fossil fuels Humus Kerogen Biomass Sediment 4. —————- is also called free water in soil None of these Capillary water Gravitational water Hygroscopic water 5. Which adaptation helps bryophytes conserve water? Cuticle Rhizoids Stomata All of these 6. How do bryophytes typically obtain water and nutrients? Through stomata Directly from the environment via diffusion Through vascular tissue Through roots 7. Which photosynthetic pigment has the molecular formula C35H30MgN4O5? Chlorophyll b Chlorophyll c Chlorophyll a Phycocyanin 8. Which pigment is primarily responsible for the green color in plants and algae? Anthocyanins Phycobilins Chlorophyll a Carotenoids 9. What is the main characteristic of bryophytes? Flower production Seed production Vascular tissue Non-vascular tissue 10. During the —— period, gymnosperms dominated on earth Permian Carboniferous Devonian Triassic Loading …