biology p2 instructions.pdf

553/2&3 Inst. Sch. BIOLOGY PRACTICAL INSTRUCTIONS BIOLOGY PRACTICAL INSTRUCTIONS © 2024 Uganda National Examinations Board Turn Over 2024 Uganda Certificate of Education UGANDA NATIONAL EXAMINATIONS BOARD 553/2&3 Inst. Sch. CONFIDENTIAL This information is given only to facilitate preparation of examination. Great care should be taken that the informaton given below does not reach the candidates either directly or indirectly. INSTRUCTIONS FOR PREPARING SPECIMENS AND APPARATUS: The teacher responsible for preparing specimens must ensure that candidates are provided with correct specimens and other materials as specified in these instructions. Specimens and solutions which have been assigned codes should be presented to candidates using those codes only and not any other identity. The head teacher must ensure that the teacher responsible for preparing the specimens hands in his/her trial results for the physiology/biochemistry question, properly sealed in a separate envelope and firmly fastened (attached) to the candidates’ script envelope(s). Each candidate should be provided with; 2 25 cm3 of solution B (is prepared by soaking 125 g of beans in water for 24 hours, poundthe beans into paste and mix with 500 ml of distilled water. Decant the solution and dilute to 1000 ml using distilled water). Freshly killed housefly, labelled specimen Y. Freshly killed worker termite, labelled specimen X. Access to: Reagents for food tests. 2 Beakers. Hand lens. Source of heat. 6 Test tubes.