Pteridophytes vs Gymnosperms Pteridophytes Pteridophytes are a group of primitive land plants belongs to Cryptogams. They are the first plant group with vascular tissue for the conduction of water and food materials and hence they are called as Vascular Cryptogams. Gymnosperms Gymnosperms are a group of primitive seed-producing plants of […]
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NET Life Science Model Question Paper 21 (December)
Welcome to CSIR NET Online Mock Test 21. This test is for the preparation of CSIR NET Life Sciences Examination. It Consists of 15 MCQ Questions in Online Test format. Once you finish the test, please click ‘SUBMIT‘ button to see your ‘SCORE‘ and ‘CORRECT ANSWERS‘. You may contact Admin if […]
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Classification of Gymnosperms by Chamberlain PPT
Classification of Gymnosperms by Chamberlain: Classification of Gymnosperms, Outline of the history of Classification of Gymnosperms, Chamberlain System of Classification of Gymnosperms, Class Cycadophyt and Coniferophyt, Order Cycadofilicales (Pteridospermales) Cycdeoidales (Bennettitles) and Cycdales, Order Cordaitales, Ginkgoales, Coniferales and Gnetales. Learn more: Note on Classification of Gymnosperms The preview of the […]
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Classification of Gymnosperms by Chamberlain (1934)
There are many systems for the classification of Gymnosperms in the literature. Robert Brown (1827) for the first time recognized Gymnosperms as a separate group of plants. Bentham and Hooker (1883) placed Gymnosperms between Dicots and Monocots in their classification (General Plantarum). The present acticle discusses the Gymnosperm Classification Proposed […]
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Shoot Apical Meristem- Structure and Organization
Apical meristem Ø Apical meristem is a patch of meristematic tissue present in the apex (tips) of shoot and roots in plants. Shoot apex Ø Shoot apex is the growing tip of the stem. Ø It is an undifferentiated region with meristematic cells. Ø From this region the plant […]
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