Orientation to class XI

Welcome to Class XI and to the beautiful world of Biology......
  As you shall enjoy knowing about the living beings including yourself, lets have an idea about your syllabus....                          


                                            BIOLOGY (Code- 044)
                                                Course structure
                                              Class XI(2016-17)                                                  
                                                       Theory
Time:3 hrs                                                                                     Max Marks:70

Unit I    Diversity of Living Organisms                                         07
Unit II   Structural Organisation in Plants and animals                 11
Unit III Cell: Structure and Function                                            15
Unit IV Plant Physiology                                                              17
Unit V   Human Physiology(A)- Section for OTBA                    10*
              Human Physiology (B)                                                   10


Chapter coming under (A) are
Chapter 18: Body fluids and circulation
Chapter 22: Chemical coordination and integration.
*Part A will be assessed through OTBA. No other questions will be asked  from the section of the unit earmarked for OTBA
                                                                                             (Open Text Based Assessment)


                                                    Practicals
Time allowed:3 hrs                                                                  Max Marks: 30

                                            Evaluation scheme
1. One major experiment                                                   5 marks
2. One minor experiment                                                   4 marks
3. Slide Preparation                                                            5 marks
4. Spotting                                                                          7 marks
5. Practical Record+ Viva                                                  4 marks
6. Project record + Viva                                                     5 marks

A. List of Experiments 

1. Study and description of three locally available common  

  flowering plants, one from each of the families Solanaceae,

  Fabacceae and Liliaceae including dissection and display of

  floral whorls, anther and ovary to show number of chambers

  (floral formulae and floral diagrams). Types of root (Tap

   and adventitious); stem (herbaceous and woody); leaf

   (arrangement, shape, venation, simple and compound).

2. Preparation and study of T.S. of dicot and monocot roots

    and stems (primary).

3. Study of osmosis by potato osmometer.

4. Study of plasmolysis in epidermal peels (e.g. Rhoeo leaves).

5. Study of distribution of stomata in the upper and lower

    surface of leaves.

6. Comparative study of the rates of transpiration in the upper  

    and lower surface of leaves.

7. Test for the presence of sugar, starch, proteins and fats.  

     Detection in suitable plant and animal materials.

8. Separation of plant pigments through paper

   chromatography.

9. Study of the rate of respiration in flower buds/leaf tissue

   and germinating seeds.

10. Test for presence of urea in urine.

11. Test for presence of sugar in urine.

12. Test for presence of albumin in urine.

13. Test for presence of bile salts in urine.

B. Study/observation of the following (spotting)

1. Study of the parts of a compound microscope.

2. Study of the specimens/slides/models and identification

 with reasons - Bacteria, Oscillatoria,Spirogyra, Rhizopus, mushroom, yeast, 

liverwort, moss, fern, pine, one monocotyledonous plant,one dicotyledonous plant 

and one lichen.

3. Study of virtual specimens/slides/models and identification

   with reasons - Amoeba, Hydra, liverfluke, Ascaris, leech,  

   earthworm, prawn, silkworm, honeybee, snail, starfish,  

  shark, rohu, frog,lizard, pigeon and rabbit.

4. Study of tissues and diversity in shapes and sizes of plant

   and animal cells (palisade cells, guard cells, parenchyma,  

   collenchyma, sclerenchyma, xylem, phloem, squamous  

   epithelium, muscle fibers and mammalian blood smear)  

   through temporary/permanent slides.

5. Study of mitosis in onion root tip cells and animals cells  

   (grasshopper) from permanent slides.

6. Study of different modifications in roots, stems and leaves.

7. Study and identification of different types of inflorescence  

    (cymose and racemose).

8. Study of imbibition in seeds/raisins.

9. Observation and comments on the experimental set up for

    showing:

    a) Anaerobic respiration

    b) Phototropism

    c) Effect of apical bud removal

    d) Suction due to transpiration

10. Study of human skeleton and different types of joints with

    the help of virtual images/models only.

11. Study of external morphology of cockroach through   

      virtual images/models.