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- BIOLOGY PRACTICAL PAPER FOR FORM 3 TERM 3 (231/3) MODEL 22102021001
BIOLOGY PRACTICAL PAPER FOR FORM 3 TERM 3 (231/3) MODEL 22102021001
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22102021001
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Paper: PAPER 3 (PRACTICAL) QUESTIONS, MARKING SCHEME AND CONDIFENTIAL
Code: 231/3
Level: FORM 3
Term: TERM 3
Time: 1 HOUR 45 MINUTES
Format: .DOCX (MS WORD EDITABLE FORMAT)
Total Marks: 40 MARKS
Instructions:
- Write your name and index number in the spaces provided.
- Sign and write the date of examination in the spaces provided.
- Answer ALL the questions in the spaces provided in the question paper
- Spend the first 15 minutes of the time allowed for this paper reading the whole paper before commencing your work.
- ALL working MUST be clearly shown where necessary
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Confidential
Each candidate should be supplied with the following;
a) TO PREPARE GROUND NUT SOLUTION
Dissolve 10gms of wheat flour in 100ml of water for every 20 candidate.
- 2 test tubes in a test tube rack
- 10 ml of white wheat flour suspension in a 50ml beaker labeled M.
- 10 ml of groundnut solution in a 50 ml beaker labeled N.
- 10% Sodium hydroxide solution in a beaker labeled U
- Benedict’s solution labeled V
- 1% copper sulphate solution in a beaker labeled X
- Droppers
- 2 filter papers
- A means of heating
- A test tube holder.
a) TO PREPARE GROUND NUT SOLUTION
- Peel off the raw testa; then grind the cotyledons and embryo using mortar and pestle into a powder; then dissolve the powder in water in a beaker.
- For every 20 candidates dissolve 10gms of ground nut powder in 100 ml of water.
Dissolve 10gms of wheat flour in 100ml of water for every 20 candidate.
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