MODEL QUESTION PAPER DISCUSSION CHAPTER 1( REPRODUCTION IN LOWER AND HIGHER PLANTS)

 DEAR STUDENTS,

I HAVE STARTED TO UPLOAD VIDEOS BASED ON DISCUSSION OF MODEL QUESTION PAPER SET ON SINGLE CHAPTER.

VERY SOON VIDEO FOR SECOND CHAPTER WILL BE UPLOAD.

I AM POSTING MODEL QUESTION PAPER FOR CHAPTER 1, SUBJECT BIOLOGY (STANDARD XII).

BIOLOGY

UNIT TEST

TOPIC: - REPRODUCTION IN LOWER AND HIGHER ANIMALS

MARKS:-25                                                            TIME:-1.30HRS.

SECTION-A

QN.1) SELECT AND WRITE THE CORRECT ANSWER:-             (04)

i) What would be the number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its root tip cells?

                a) 63                         b) 84                        c) 21                 d) 28

           ii) Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called

                a) xenogamy                              b) geitonogamy 

                c) karyogamy                             d) autogamy

           iii) Fragrant flowers with well-developed nectaries are adapted for

                a) anemophily                             b) hydrophily                    

                c) entomophily                           d) zoophily

 iv) Identify A, B, and C in the given diagram by selecting the proper option,

         a) A-autogamy-porogamy-chalazogamy

                b) A-porogamy-chalazogamy, C-homogamy

                c) A-porogamy, B-chalazogamy, C-mesogamy

                d) A-hologamy, B-chalazogamy, C-mesogamy

QN.2) ANSWER THE FOLLOWING: -                                (03)

       i) Name the hormone responsible for enlargement of ovary into fruit.

          ii) Define dormancy of seed.

          iii) What is perisperm?

SECTION-B

ATTEMPT ANY FOUR: -                                               (08)

QN.3)     Draw a well labelled diagram of maize seed.

QN.4)     Explain recurrent apomixis and adventive polyembryony.

QN.5)     Explain the process of fertilization in flowering plants.

QN.6)     Explain any two types of nourishing tissue in Angiosperms.

QN.7)     Differentiate between hypohydrophily and epihydrophily.

QN.8)     Mention the significance of seed and fruit formation.

 

 

SECTION-C

ATTEMPT ANY TWO: -                                               (06)

QN.9)     Explain the development of dicot embryo (diagram not expected).

QN.10)   Mention any three floral adaptations in plants showing wind pollination.

QN.11)   Explain any three outbreeding devices for pollination.

SECTION-D                          (04)

QN.12)   Describe the internal structure of anther with the help of labelled diagram.

QN.13)   Identify the following structures in an angiospermic ovule and mention one function of each part.

 FOR ANSWERS AND DISCUSSION WATCH MY YOUTUBE VIDEO.