MCQs Botany-6 Posted on 2024-03-092024-11-08Author admin 0 MCQs Botany-6 Multiple Choice Questions (MCQs) for Test Preparation Botany, Plant Sciences 1. ___________ phenomenon describes the light production by living organisms Bioluminescence Phosphorescence Photophore Fluorescence 2. ___________ are non-motile spores produced by some algae and protists Akinetes Resting Spores Monospore Aplanospores 3. Vascular plants, with specialized tissues for transporting water and nutrients, appeared during __________ million years ago 445-415 415-355 145-65 66 4. ___________ organisms that can tolerate high salts in the environment Non-thermic Mesophillic Halophillic Thermophilic 5. _______ is the fusion of two non-flagellated gametes Conjugation Heterogamy Budding Parthenogenesis 6. ___________ are thick-walled spores, resistant to extremes of environments Monospore Resting Spores Aplanospores Akinetes 7. ___________ is a type of plastids associated with the storage of oils and fats in the plants Amyloplasts Elaioplast Leucoplasts Aleuroplast 8. ___________ deals with the direct manipulation of an organism’s genetic makeup to introduce new traits or modify existing ones Genetic Engineering Tissue culture None of these Biotechnology 9. ___________ are specialized resting stages formed by some cyanobacteria Monospore Akinetes Zygospores Aplanospores 10. Photosynthetic pigmented organelles within plastids are called ___________- Chromoplasts Amyloplasts Leucoplasts Chloroplasts 11. _________are living organisms that exist solely at the organelle level of organization Bacteria Pteridophytes Lichens Bryophytes 12. ___________ are spores produced by a single parent cell during asexual reproduction Resting Spores Monospore Aplanospores Akinetes 13. ___________ organisms prefer moderate temperature Halophillic Mesophillic Non-thermic Thermophilic 14. Concerns surrounding genetically modified organisms (GMOs) primarily focus on _____________ Cost of production Labor issues in agriculture Impact on the human health and environment Pesticide pollution 15. Bristlecone Pines is known for its longevity, with record life of ________ years around 4,500 around 3,000 None of these around 7,000 16. In angiosperms, sporophyte generation is ________________ Diploid Haploid Triploid Polyploid 17. Gymnosperms have been originated about __________________million years ago 319 370 360 300 18. If leaf lamina is segmented into more than one plane then the leaf is known as_____________ Simple leaf Bract leaf Compound leaf Cauline leaf 19. _________ are photosynthetic pigments that absorb light energy and transfer it to a reaction center of “chlorophyll a”. Tertiary pigments Accessory pigments Primary pigments Water soluble pigments 20. Organisms that can tolerate high temperature (45-65 °C) are called _____________ Mesophillic Non-thermic Halophillic Thermophilic Loading … Question 1 of 20