4.1 Biological Molecules IGCSE biology - Statistics

General Stats

Answer Stats

Hint	Answer	% Correct
positive result for the starch test	blue/black	63%
negative result for benedicts test	blue	61%
ethanol test is for	lipids	61%
proteins are made from	amino acids	58%
positive result for biurets test	purple/lilac	34%
biurrets test is for	proteins	32%
DCPIP test is for	vitamin c	24%
test for starch	iodine test	21%
positive result for DCPIP test	colourless	13%
how is it called when two strands are coiled together	double helix	11%
chemical elements that make up carbs	oxygen, carbon and hydrogen	8%
chemical elements that make up fats	oxygen, carbon and hydrogen	8%
positive result for ethanol test	white emulsion	8%
what is the name of the chemicals that form the strtands	bases	5%
negative result for biurets test	light blue	5%
chemical elements that make up proteins	oxygen, carbon, nitrogen and hydrogen	5%
way to remember DCPIP	determined cats poo in pools	3%
molecules made from fatty acids and glycerol	fats and oils	3%
benedicts test is for	glucose (reducing sugars)	3%
negative result for ethanol test	no white emulsion	3%
negative result for the starch test	orange brown	3%
negative result for DCPIP test	pink or blue	3%
bases of DNA	A with T and C with G	0%
molecules made from glucose	cellulose, glycogen and starch	0%
positive result for benedicts test	green, yellow, orange and red percipitate	0%

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