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8. Which one of the following is NOT a plant vascular tissue? (A) Phloem (B) Periderm (C) Stele (D) Xylem Plant Vascular Tissue Explained: Why Periderm is NOT a Vascular […]

7. Which of the following acts as wound hormones in plants? (A) Ethylene (B) Cytokinins (C) Abscisic acid (D) Dextrin Ethylene as the Wound Hormone in Plants Introduction Plants are […]

6. Transpirational pull that extends down to the roots in plants can be interrupted by (A) Process of cavitation (B) Process of gravitation (C) Formation of water vapor pockets (D) […]

5. The osmotic potential (ψ) of pure water is _____ MPa. (A) -1 (B) 0 (C) 0.1 (D) 10 Osmotic Potential (Ψs) of Pure Water Explained Introduction Water movement is […]

4. Indeterminate growth in plants is due to the presence of perpetually undifferentiated tissues, called as _____. (A) Tracheids (B) Meristems (C) Parenchyma (D) Sclerenchyma Meristems are Responsible for Indeterminate […]

3. Which of the following are produced by Mangrove trees to survive in the waterlogged swampy forests? (A) Trichomes (B) Pneumatophores (C) Spermatophores (D) Rhizophores Pneumatophores in Mangrove Trees Explained […]

2. In plants, the ovules are attached to the ovary by (A) Placenta (B) Synergids (C) Embryo sac (D) Tube cells Ovules are Attached to the Ovary by the Placenta […]

1. Which one of the following features distinguishes between gymnosperms and angiosperms? (A) Seed formation (B) Vascular tissues (C) Seed cover (D) Gamete production Seed Cover Distinguishes Gymnosperms and Angiosperms […]