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