Statistics for Biological molecules-OCR - A level

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General Stats

This quiz has been taken 29 times
The average score is 15 of 31

Answer Stats

Hint	Answer	% Correct
which lipid would be more fluid? A.) polyunsaturated or B.) saturated	A	96%
in which type of glucose is the hydroxyl group on the top?	beta	88%
amylopectin is a branched structure with 1,4 and ....... glycosidic bonds	1,6	85%
what bond is present between the fatty acids and glycerol?	ester	85%
which polysaccharide provide animals glucose quickly?	glycogen	77%
what bond joins monosaccharides?	glycosidic	73%
what is the name of 3 or more monosaccharides bonded together?	polysaccharide	73%
alpha and beta glucose, ribose, deoxyribose, fructose and what is the last monosaccharide?	galactose	69%
what bonds form between amino acids?	peptide	69%
cellulose is composed of what type monosaccharide?	beta glucose	65%
what are the intermolecular forces present between water molecules?	hydrogen bonds	65%
haemoglobin has how many polypeptide chains?	4	62%
what is the name of two alpha glucose molecules bonded together?	maltose	62%
which of the following are present in an amino acid (assuming R group is hydrogen)? aldehyde , halogen, acid amide group, carbonate or carboxyl group	carboxyl group	58%
what property of starch and glycogen means they do not affect water potential?	insoluble	58%
what reaction turns a lipid back into its constitute molecules?	hydrolysis	54%
name the two polysaccharides that make up starch	amylose and amylopectin/amylopectin and amylose	50%
what property of water enables it to transport substances and act as a good medium for chemical reactions?	solvent	50%
which property of water makes it thermally stable?	high specific heat capacity	46%
what role do lipids have surrounding vital organs such as the heart and kidneys?	protection/shock absorber	46%
in chromatography what is defined as where the molecules can move?	mobile phase	31%
fructose, galactose, beta & alpha glucose are all examples of what type of sugar?	hexose	27%
cellulose chains bundle to form microfibrils, microfibrils bundle together to form...	macrofibrils	27%
if a lipid has 4 double bonds it can be described as....	polyunsaturated	27%
what is chromatography used to separate a mixture based on?	solubility	23%
what is the primary structure of a protein?	the sequence of amino acids/order of amino acids	19%
what property of water enables it to act as a coolant?	high latent heat of vaporisation	15%
name the two types of secondary structure that the polypeptide chain can fold into	beta pleated sheet and alpha helix	12%
what is the chemical formula of deoxyribose?	C5H10O4	12%
what is a lipid made up of?	3 fatty acids and a glycerol	0%
name a protein that consists of just one polypeptide chain	pepsin	0%