MCQs Botany-26 Posted on March 4, 2025August 30, 2025Author agropublishers 0 1. What is the role of statoliths in gravitropism? To perceive light intensity To perceive gravitational force To perceive mechanical stimuli To perceive water availability 2. Terpenoids are a major component of ———- plants and are used in their chemotaxonomy Coffee Tea Rose Citrus 3. Photonasty is a type of nastic movement that involves the opening or closing of plant organs in response to———– Light intensity Mechanical stimuli Gravitational forces Temperature fluctuations 4. ——- is a cultural method for plant disease control Crop rotation Application of fungicides Biological control Use of resistant varieties 5. The plant hormone ——— is primarily responsible for phototropism Gibberellin Cytokinin Ethylene Auxin 6. Which group of plants produces seeds but does not have flowers or fruits? Gymnosperms Pteridophytes Bryophytes Mosses 7. The Commelinaceae family is commonly known as the ——— Spiderwort family Bromeliad family Orchid family Aloe family 8. —- is mong the techniques used to study gene expression in plants ELISA (Enzyme-Linked Immunosorbent Assay) Microscopy Serology RT-PCR (Reverse Transcription PCR) 9. Lenticels are involved in———– Water absorption Food storage Mechanical support Gas exchange 10. Taxonomically, mosses are included in which group of plants? None of these Pteridophytes Bryophytes Gymnosperms Loading …
