Angiosperm

Angiosperm

Hi viewers Today we are going to discuss about the The Angiosperms. Angiosperms are eukaryotic flower producing fruit producing plants. They may be May be herb, shrub and tree or may be annual, biennial and perennial type PROPERTIES ANGIOSPERM They are eukaryotic in nature They are autotropic Roots,stem and leaf are distinct Xylem and phloem are present Seeds are covered with fruits Fertilisation takes place after few days of pollination Leaves are of various types Flowers are of various types Mango,Coconut, etc. 1.   State five distinctive features of angiospermic plants. (3) Ans. i) Presence of flowers. ii) Formation of fruit. iii) Pollen grains are borne in anther. iv) Existence of double fertilization. v) Formation of triploid endosperm after fertilization. 2.  What are angiosperm and phanerogam? (1+1) Ans. a) The angiosperms are the highest evolved vascular plant producing flowers and fruits. b) All flowering plants are called phanerogams. 3.   Name three structures absent in dicot seed. (1) Ans. Coleoptile, coleorhiza and scutellum 4.  Name a nonendospermic monocot plant. (2) Ans. Arum 5. Name the fruit where fruit coat and seed coat...
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The Gymnosperm

The Gymnosperm

Hi viewers Today we will discuss about the Gymnosperm. Basically, Gymnosperms are eukaryotic plants, which have naked seed and fertilization takes place after one year of fertilization. PROPERTIES GYMNOSPERM They are eukaryotic in nature They are autotrophic Roots,stem and leaf are distinct Woody stem and xylem are present Naked seeds are present Spiny leaves are present Fertilisation takes place after one year of pollination Male cone and female cone are present They are evergreen and perennial Eg. Pinus and Cycas, etc. 1.  Name one gymnosperm where xylem vessels and companion cells are present. (1) Ans. Gnetum 2.  Differentiate between bract scale and ovuliferous scale. (2) Bract scale Ovuliferous scale 1. They are located at the base of the microsporophyll. 2. They have a membranous structure. 3. They protect the base of the megasporophyll and provide their attachment with the axis. 1. They are the upper lateral projections of the megasporophyll. 2. They have a more woody structure. 3. They provide support and protection to the ovules. Differentiate between endosperm of gymnosperm and endosperm of...
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The Pterydophyta

The Pterydophyta

Hi viewers Today we will discuss about the world of Pterydophyta Definition of Pterydophyta Pteridophytes are vascular plants that reproduce and disperse via spores, these plants produce neither flowers nor seeds and it also show alternation of generation. PROPERTIES PTERYDOPHYTA Autophytic nutrition. Terrestrial Body is divisible into root, stem and leaf They are nonflowering plants Reserve food material is starch Cell wall- cellulose Sporophytes and Gametophytes are separate plants Adult life starts with sprophyte Chemotropism- occurs by synthesis of malic acid Vascular tissue is present Eg. Any kind of fern 1.  What are the main characters of Pteridophytes? (3) Ans. The main characters of Pteridophytes are in the following: a) Pteridophytic plants are advanced than the bryophytes but less advanced than gymnosperms, and mostly they are terrestrial. b) They are non-flowering plants, and do not bear flowers, fruits and seeds. c) The leaves are generally of two types- small and scale like microphyllous and large megaphyllous. d) The plant body is the sporophyte, which is well developed, autotrophic and long lived....
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Do’s and Dont’s Of a Professional and Competent Teacher

Do’s and Dont’s Of a Professional and Competent Teacher

Do's and Dont's Of a Professional and Competent Teacher Respected Teachers across the World: In this blog we will discuss what are Do's and Dont's Of a Professional and Competent Teacher.  I am writing this Blog for the entire teacher community because teaching is not a Profession but it is a Devotion. The teacher deserves respect from the society because they make Professionals in the society. So the society is always indebted to the teachers.  Teachers are Gurus, and  they are compared with the full moon.  It is because, as the moon removes the darkness of the earth similarly Gurus removes the darkness of mind from the students.  I am indebted to my Gurus.  What are depicted below I learned from my Gurus and through my walk of life. Just ask yourself....................................... "Why I wanted to become a teacher "'?  Does your answer matches any one of them given below: Is it for a simple BUSINESS Do you want to become your own BOSS Do you want...
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