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MHT-CET : Biology Entrance Exam

MHT - CET : Biology - Conquest of Land Glossary

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                     Angiosperms: These are flowering plants in which the ovules are enclosed inside the ovary.

                     Alternation of Generations: The rotation of asexual sporophytic generation with sexual gametophytic generation in an alternate manner is called alternation of generations.

                     Antheridia: The male sex organs which produce antherozoids, i.e., male gametes, are called antheridia.

                     Archegonia: The female sex organs which produce egg or ovum are called archegonia.

                     Entomophilous: Flowers pollinated by insects are called entomophilous.

                     Fertilisation: The union of male and female gametes is called fertilisation.

                     Gymnosperms: The plants bearing naked ovules are gymnosperms.

                     Endospermic Seed: A kind of seed in which food for the embryo is stored in the endosperm is called endospermic seed.

                     Nonendospermic Seed: A kind of seed in which food for the embryo is stored in cotyledons but not in the endosperm is called a nonendospermic seed.

                     Sporangia: These are sac like structures in which asexual spores are produced.

                     Sporophylls: Mature leaves which bear reproductive structures called sporangia are called sporophylls.

                     Bulbil: A small bulb like bud on the stem meant for vegetative propagation.

                     Ramenta: These are brownish, scale like structures found over the surface of rhizome, stolon, rachis, etc. of Nephrolepis.

                     Panicle: A branched raceme in which each branchlet bears a pair of spikelets.

                     Spike: A raceme of sessile flowers.

                     Stele: The cylinder or core of vascular tissues surrounded by endodermis is called stele.

                     Protostele: A primitive type of stele consisting of a central solid core of xylem surrounded by phloem, pericycle and endodermis is called a protostele.

                     Siphonostele: A kind of stele in which xylem and phloem are arranged around a pith in a concentric manner is called a siphonostele.

                     Tillering: The process by which new aerial shoots emerge which provides for lateral spreading of grasses and for better establishment.

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