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