Assignment 2 Sexual Reproduction in Flowering Plants

Good morning dear students,

Kindly mark your attendance first.
Today we will achieve following learning outcome:-
Students will be able to -
1. Remember & write the answers of previously taught topics.


                        ASSIGNMENT -2

Answer the following questions according to the marks allotted :-

1. Normally one embryo develops in one seed, but when an orange seed is squeezed many embryos of different shapes &  sizes are seen. Mention how it has happened.     (LOTS) [1]

2. Differentiate between Albuminous & Non Albuminous seeds, giving one example of each.                                                 ( LOTS)    [2]

3. A pollen grain in angiosperm at the time of Dehiscence from an anther could be 2celled/3celled.  Explain, how are the cells placed within the pollen grain when shed at a 2 celled stage?                                      (HOTS)   [2]

4. Why are beehives kept in crop field during flowering period? Name any 2 crop fields where this is practiced?                (LOTS)       [3]

5. Explain any 3 advantages the seed offer to angiosperms.                                      (LOTS)   [3]

6. Read the following statement & answer the questions that follow :-

" A Guava fruit has 200 viable seeds".

a) what are viable seeds?
b) write the total no. Of :-
i. Pollen grains
ii. Gametes in producing 200 viable guava seeds.
c)  Prepare flowchart to depict the post pollination events leading to viable seed production in a flowering plant.
                                               (HOTS) [ 1+2+2 =5]

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 Kindly email me these answers by  9:00 am today.

The home work task is to complete your NCERT questions  .


We will meet now on 4th April, with day 3 time table. Ask your doubts if any here.
We will start with Chapter 3 " Human Reproduction "

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