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