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Biological molecules-OCR - A level
if there are any mistakes please let me know in the comments a quiz on food tests will be coming soon
Last updated: January 27, 2021
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January 26, 2021
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what property of water enables it to act as a coolant?
high latent heat of vaporisation
what property of water enables it to transport substances and act as a good medium for chemical reactions?
which property of water makes it thermally stable?
high specific heat capacity
what are the intermolecular forces present between water molecules?
alpha and beta glucose, ribose, deoxyribose, fructose and what is the last monosaccharide?
in which type of glucose is the hydroxyl group on the top?
fructose, galactose, beta & alpha glucose are all examples of what type of sugar?
what is the chemical formula of deoxyribose?
what bond joins monosaccharides?
what is the name of two alpha glucose molecules bonded together?
what is the name of 3 or more monosaccharides bonded together?
what property of starch and glycogen means they do not affect water potential?
name the two polysaccharides that make up starch
amylose and amylopectin/amylopectin and amylose
amylopectin is a branched structure with 1,4 and ....... glycosidic bonds
which polysaccharide provide animals glucose quickly?
cellulose is composed of what type monosaccharide?
cellulose chains bundle to form microfibrils, microfibrils bundle together to form...
what is a lipid made up of?
3 fatty acids and a glycerol
if a lipid has 4 double bonds it can be described as....
what reaction turns a lipid back into its constitute molecules?
which lipid would be more fluid? A.) polyunsaturated or B.) saturated
what bond is present between the fatty acids and glycerol?
what role do lipids have surrounding vital organs such as the heart and kidneys?
which of the following are present in an amino acid (assuming R group is hydrogen)? aldehyde , halogen, acid amide group, carbonate or carboxyl group
what bonds form between amino acids?
name the two types of secondary structure that the polypeptide chain can fold into
beta pleated sheet and alpha helix
what is the primary structure of a protein?
the sequence of amino acids/order of amino acids
haemoglobin has how many polypeptide chains?
name a protein that consists of just one polypeptide chain
in chromatography what is defined as where the molecules can move?
what is chromatography used to separate a mixture based on?
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