SSC Biology Model Question-8

Class-X

Sub: Biology (theoretical)

Time: 2 hours                                                                                        FullMarks-40

(N.B. The figures in the margin indicate full marks. The answers of the different parts of a question is to be written in sequence.)

Group A- Botany

(Answer any three of the following question)

1.(a) What is bionomial nomenclature?                                                                          02

   (b) Write down the structure of xylem tissue.                                                              03

2.(a)  Write down the difference between osmosis and diffusion.                                    02

   (b) Describe the structure of T_2-virus with labeled diagram.                                         03

3.(a) What is photophosphorylation?                                                                             02

   (b) Describe about light phase of photosynthesis.                                                        03

4.(a)What is photoperiodism and vernalisation?                                                             02

   (b) Mention the differences between self and cross pollination.                                    03

Group B- Zoology

(Answer any three of the following question)

5.(a) What is tissue?                                                                                                     01

   (b) Write down the function of skeleton.                                                                     04

6.(a) Classify toad from phylum to species.                                                                    02

   (b) Mention the 6 rules of natural classification.                                                           03

7.(a) What is pseudopodia?                                                                                          01

   (b) Discuss how Amoeba produces its progeny by binary fission process.                   04

8.(a) What is hibernation?                                                                                             01

   (b) Draw a labeled diagram of a typical vertebra of toad.                                            04

Group C- Combined part

(Answer any two of the following question)

9.(a) What is food web?                                                                                               01

   (b) Describe green house effect.                                                                                 04

10.(a) What is called carp?                                                                                           01

     (b) Write down the charactersics of a ideal pond.                                                     04

11.(a) What is sat?                                                                                                       01

     (b) Describe the structure and functions of Nucleus.                                                  04

12.(a) What is meiosis?                                                                                                 01

     (b) Describe mitosis cell division with diagram.                                                         04