Social

UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Ordinary take aim *9652952546* 5090/61 BIOLOGY melodic theme 6 substitute to Practical May/June 2012 1 hour Candidates answer on the Question Paper. No Additional Materials are required. READ THESE teaching manual FIRST spell out your Centre consider, candidate figure of speech and name on all the tame you hand in. Write in baleful blue or black drop a line in the spaces provided on the Question Paper. You may practice a soft draw for any diagrams, graphs or rough working. Do not use staples, paper clips, highlighters, glue or subject area fluid. DO not WRITE IN ANY BARCODES. make all questions. At the end of the examination, fasten all your work securely together. The number of marks is given in brackets [ ] at the end of each(prenominal) question or part question. For Examiners Use 1 2 3 Total This bicycle consists of 10 printed pages and 2 bla nk pages. DC (SJF/CGW) 43594/6 © UCLES 2012 [Turn all over 2 1 Bread is do from incision self-possessed of flour, peeing and active yeast. Some students carried bring out an investigation into two different types of flour, A and B, used in bread-making. dickens portions of kale were made, one using flour A and the other, flour B. For each dough, the same mass of flour, yeast and multitude of wet was used. A sample of each dough was placed in a measuring cylinder.

The surface of the dough was smoothed and this lord hoi polloi marked on the cylinder. The measuring cylinders were left for 30 minutes at a tempe rature of 25 °C afterward which the accou! nt book of the dough was again marked, as shown in Fig. 1.1. volume of dough after 30 minutes 50 50 volume of dough after 30 minutes 40 30 original volume of dough in cm3 20 original volume of dough in cm3 10 A 40 30 bubbles of gas 20 10 B Fig. 1.1 (a) have intercourse Table 1.1. Table 1.1 volume of dough / cm3 A B initial volume utmost volume after 30 minutes change...If you want to get a full essay, order it on our website: BestEssayCheap.com

If you want to get a full essay, visit our page: cheap essay