MCQs Botany-4 Posted on 2023-09-172024-11-08Author admin 0 MCQs Botany-4 Multiple Choice Questions (MCQs) for Test Preparation Botany, Plant Sciences 1. ___________ are plant structures, responsible for producing new cells Root hair Phloem Xylem Meristem 2. Rapid breakdown of enzymes can occur due to high ___________. Fog Moisture Rain Temperature 3. Loss of water through stomata is called ___________ Guttation Transpiration Evaporation Run off 4. ____________is major storage carbohydrate in seeds Arginine Glycogen Starch Cellulose 5. Conversion liquid form of water to gaseous form, from any surface is called ___________ Evaporation Guttation Run off Transpiration 6. ____________ is the hormone responsible for apical dominance Ethylene Gibberellins Auxin Abscisic Acid 7. ____________ is the study of plant pollen, spores and certain microscopic plankton organisms in both living and fossil form Permafrost Palynology Paleobotany Phytogeography 8. ____________ is the water exuded by plants, usually during overcast nights, under warm and moist soil conditions Fog Guttation Relative humidity Dew 9. ____________ type of plants can have the lowest water use efficiency C3 Xerophytes C4 CAM 10. Chromosome number (2n) of Oats (Avena sativa) 24 42 12 14 11. Plants can obtain nitrogen from the atmosphere through a process of ____________ Nitrification Transpiration Nitrogen fixation Denitrification 12. _________ is the mutualistic relationships between fungi and the roots of plants Lichens Commensalism Mutualism Mycorrhizae 13. Chromosome number (2n) of Oryza sativa 12 14 24 42 14. ____________is the water uptake for resumption of metabolic activities in seeds Osmosis Imbibition None of these Dehiscence 15. _________ is the process of growing plants in a specific shape or form None of these Thinning Training Pruning 16. Imaginary lines running parallel to the equator is ___________ Longitude Altitude None of these Latitude 17. Chromosome number (2n) of Wheat (Triticum aestivum) 14 42 12 24 18. The embryonic root that emerges first from the seed coat is ____________ Cotyledon Hypocotyl Radicle Coleoptile 19. _________ is study of trees Dendrology Plant Science Forestry Forest Ecology 20. Excessive exposure to UV radiation can cause damage to ____________ Cell Membrane DNA Cell Wall Cytoplasm Loading …