GUIDELINES FOR BIOLOGICAL PRACTICAL EXAMINATION FOR THE VISUALLY CHALLENGED STUDENTS

1. The question paper will be based on MCQs.

2. There will be 25 questions in all.

3. The paper will carry 25 marks.

4. The duration of the paper will be 90 marks.

5. The paper will assess :

•  The ability through touch, small, learning, residual vision.

•  Familiarity with the apparatus required for various experimental set up.

6. Syllabus for the question will be the same as the list unit of practicals given in the course. There will be at least one question for each practical. 

7. Assessment of the of the practical skill will carry 30 marks and distributed as :

Text Box: (i) 25 MCQs	25 marks
(ii) Practical file	03 marks
(iii) Viva	02 marks

List of practicals for Class XI will remain the same as given in the syllabus. However, keeping different abilities of the visually challenged candidates, the list may be divided under the following categories. Few practicals suggested in the list need to be excluded. Kindly refer the note attached to the practicals to help in framing tghe questions. The list of practicals of Class XI identified in the syllabus can be divided under the following heads.

Specimen & Models

A-1 Study and describe three locally available common flowering plants from each of the following families (Solananceae, Fabaceae and Liliaceae) types of root (tap or adventitious), stem (herbaceous/woody) leaf arrangement/venation/simple or compound).

B-1 Study parts of a compound microscope.

B-2 Study of the specimens and identification with reasons - Bacterial, Oscillatoria, Spirogyra, Rhizopus, Mushroom, Yeast, Liverwort, Moss, Fern, Pines, one monocotyledon and one dicotyledon and one lichen.

B-3 Study of specimens and identification with reasons - Amoeba, Hydra, Liverfluke, Ascaris, leech, Earthworm, Prawn, Silkworm, Honeybee, Cockroach, Snail, Starfish, Shark, Rohu, Frog, Lizard, Pigeon and Rabbit.

B-5 Study of mitosis in onion root tip cells from permanent slides. B-6 Study of different modifications in root, stem and leaves. B-7 Study and identify different types of inflorescences. B-10 To study human skeleton and different types of joints.

Note: The above can be done with the help of actual specimens/models/embossed diagrams. Physiology experiments

A-3 Study of osmosis by potato osmometer. A-7 Test for the presence of sugar, starch, proteins and fats in suitable plant and animal materials (e.g.

wheat, potato, groundnut, milk or other such suitable materials). A-9 To study the rate of respiration in flower buds and germinating seeds. B-8 Study of imbibitions in seeds/raisins. B-9 Observation and comments on the experimental set up on :

(a) Anaerobic respiration

(b) Phototropism

(c) Apical bud removal

Note: When dealing with physiology experiments theycan be done with the help of a peer with low/ normal vision. The students can work in teams with peer group who will follow the procedure and give them the observations and inference.

List of Excluded items :

A-2, 4, 5, 8, 10, 11 B-4, 9(d)

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