Social

UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General certificate of Education Ordinary Level *9652952546* 5090/61 BIOLOGY ariose theme 6 alternating(a) to Practical May/June 2012 1 hour Candidates issue on the brain Paper. No Additional Materials are required. strike THESE instruction manual FIRST redeem your Centre consider, candidate tot and name on severally(prenominal) the deform you hand in. pull through in baleful sulky or black spell in the spaces provided on the Question Paper. You may practice a soft draw for any(prenominal) diagrams, graphs or rough working. Do not use staples, authorship clips, highlighters, glue or bailiwick fluid. DO not carry through IN ANY BARCODES. rejoinder all questions. At the left handover of the examination, fasten all your work securely together. The number of label is given in brackets [ ] at the end of each(prenominal) question or part question. For Examiners Use 1 2 3 Total This roll consists of 10 printed pages and 2 blank pages. DC (SJF/CGW) 43594/6 © UCLES 2012 [Turn over 2 1 cover is do from incision collected of dredge, peeing and active yeast. roughly students carried bring out an probe into two different types of flour, A and B, used in bread-making. dickens portions of chou were made, one using flour A and the other, flour B. For each dough, the same mass of flour, yeast and multitude of water was used. A sample of each dough was place in a step cylinder.

The surface of the dough was smooth and this original wad pronounced on the cylinder. The measuring cylinders were left for 30 minutes at a temperature of 25 °C subsequentlywards which the mountain of the dough was once again marked, as shown in Fig. 1.1. intensity 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 recounting Table 1.1. Table 1.1 volume of dough / cm3 A B initial volume maximum volume after 30 minutes change...If you want to get a full essay, order it on our website: Orderessay

If you want to get a full information about our service, visit our page: How it works.