“Truth can be stated in a thousand different ways, yet each one can be true…” Swami Vivekananda What is ‘Test of Hypothesis’? Ø Test of Hypothesis (Hypothesis Testing) is a process of testing of the significance regarding the parameters of the population on the basis of sample drawn from it. […]
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Secretory Tissue System in Plants (Structure, Classification and Functions)
Most of the plants release many substances from their cell cytoplasm to the exterior and they are called as Plant-secretions. Among these secretions, some are beneficial to the plant and some are not. The beneficial substances secreted from the plant parts are called as secretions. The chemical composition of plant […]
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General Characters of Gymnosperms (Lecture Notes with PPT)
Gymnosperms are primitive seed-producing plants of Spermatophytes (Phanerogams). They are ‘Naked-Seed’ Plants. The term is derived from two Greek words: ‘gymnos’ meaning naked and ‘sperma’ meaning seeds. They are characterized by naked ovules (i.e., ovule without the ovary). The ovules of Gymnosperms are borne directly on the surface of the […]
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Hydathode: Structure and Functions
Hydathodes are specialized pores (openings) particularly present on the leaf margins, which exudes or secretes drops of water. The exudation of water as drops from the tip or margin of the leaves is called guttation. The process of guttation is facilitated by the hydathodes. They are also called as Water […]
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Difference between Tropic and Nastic Movements
Tropic Movements vs Nastic Movements Difference between Tropic and Nastic Movement: Tropic movements and Nastic movements are the two types of induced or paratonic movements of curvature in plants. Tropic movements: The paratonic (induced) movement of growth is called tropic movements. Here the stimuli are external and unidirectional. Example: phototropic […]
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