Identify the odd one w.r.t.post-fertilizational developments in plants. Algae - Zygote form embryo Angiosperm - Ovary form fruit Pea - Sepals do not shade off Angiosperms - Ovule form seed

Mark the odd one w.r.t the post fertilisation events occurring in a flowering plant. (a) Embryo Formation (b) ovule develops into a seed (c) Gametogenesis (d) Ovary ripes into a fruit

Choose the odd one w.r.t the four carbon acid formed during C_4 cycle

Assertion: Fruits are formed only in angiosperms. Reason: Fruits develop from ovaries which are found only in angiosperms.

[A]: Angiosperms and gymnosperms both are flowering plants . [R] : They both form covered seeds .

find the odd one w.r.t germ layers which form the following structures?

Read the following statements (a) Angiosperms range in size from microscopic Wolffia to tall trees of Eucalyptus (b) In angiosperms, the seeds are enclosed by fruits (c ) Double fertilization is an event unique to angiosperms (d) In angiosperms, each cell of embryo sac is diploid (e) In angiosperms, the zygote develops into an endosperm Of the above statements, the correct ones are

Identify the statements as true(T) or false(F). A. Xylem fibres are the components of xylem in all categories of vascular plants. B. Advanced angiosperm families like Winteraceae & Trochodendraceae do not have vessels. C. Sieve tubes & companion cells are ontogenetically related & are called sister cells. D. The cytoplasm of a mature sieve tube occurs in the form of a thin-living layer along the inner side of cell walls.

Assertion : In angiosperms, endosperm development precedes embryo development. Reason : Double fertilisation ensures that the nutritive tissue is formed before the zygotes starts cleaving so that the energy spent on the formation of endosperm does not get wasted.

Mango and coconut are drupe fruits. They develop from monocarpellary superior ovaries and are one seeded. It is differentiated inot outer thin epicarp, middle fleshy mesocarp and inner stony endocarp . The edible part of coconut (Cocos nucifera) is endosperm . The milk of tender coconut represents the oily endosperm in liquid form. Later it gets deposited along the walls of endocrap and forms edible flesh.

Give reasons why : (i) most zygotes in angiosperms divide only after certain amount of endosperm is formed. (ii) ground nut seeds are exalbuminous and castor seeds are albuminous. (iii) Micropyle remains as a small pore in the seed coat of a seed. (iv) integuments of an ovule harden and the water content is highly reduced,as. the seed matures. apple and cashew are not called true fruits.