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