Question 1
Question
Proteins are complex bio-chemicals containing?...
Answer
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Carbon, oxygen,hydrogen
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Carbon , hydrogen, oxygen, nitrogen, sulphur
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Oxygen, nitrogen, carbon, hydrogen
Question 2
Question
Proteins are made up of amino acids
Question 3
Question
Proteins are p__________________
Answer
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Polysaccharides
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Peptides
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Protons
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Polymers
Question 4
Question
If proteins are polymers ,and are made up of amino acids, then amino acids must be monosaccharides.
Question 5
Question
Some amino acids form Benzine ring structures
Question 6
Question
Carbohydrates form glycosidic bonds
Lipids peptide bonds
and Proteins form ester bonds during condensation reaction
Question 7
Question
A peptide bond can be reversed by hydrolisis
Question 8
Question
Roughly how many amino acids make 1 protein?
Question 9
Question
In a protein on which side is the amino acid group found? And what is it called in terms of 'terminus'?
Answer
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Right & N-terminus
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Left & N-terminus
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Left & C-terminus
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Right & C-terminus
Question 10
Question
In a protein on which side is the carboxyl group found? And what is it called in terms of terminus?
Answer
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Right & C-terminus
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Left & C-terminus
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Right & N-terminus
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Left & N-terminus
Question 11
Question
How many different amino acids are found in nature?
Question 12
Question
How many amino acids are in a dipeptide?
Question 13
Question
Water is released during a hydrolysis reaction.
Question 14
Question
What's the only difference between different amino acids?
Answer
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Length of carbon chain
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Their names
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R group
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Amount of atoms
Question 15
Question
What is the name of the test for proteins?
Answer
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Biuret
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Iodine
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Emulsion
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Benedict's
Question 16
Question
Biuret test: to test the sample it first has to be ________________ so you add a few drops of ___________________________________.
Answer
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Acidic , Hydrochloric acid
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Alkaline, Copper (II) Sulfate
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Acidic, sodium hydroxide
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Alkaline, Sodium hydroxide
Question 17
Question
Then you add copper (II) sulfate so the solution changes colour
Question 18
Question
If the result is positive the solutions turns...?
Question 19
Question
The primary structure of proteins is made up of monomers called amine acids
Question 20
Question
Depending on the sequence of amino acids in the primary structure the secondary structure will be in the shape of a a-helix or b-pleated sheet...this is due to what type of bonding?
Answer
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Ionic
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Covalent
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Disulfide bridges
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Hydrogen
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Van der waals
Question 21
Question
The tertiary structure is even more coiled/folded... what causes this?
Answer
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Ionic, hydrogen and covalent bonding
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Ionic, disufide bridges and covalent bonding
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Hydrogen, covalent and disulphide bridges
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Van der waals, ionic, disulphide bridges and hydrogen bonding
Question 22
Question
Sometimes the tertiary structure is the last structure of a protein
Question 23
Question
Disulfide bridges occur between two cysteine amino acids in the polypeptide chain(s).
Question 24
Question
Between the two cystein amino acids bond by the sulphur atoms...this is ionic bonding.
Question 25
Question
the quaternary structure is how different polypeptide chains are held together by bonds.
Question 26
Question
Which do not use proteins
Answer
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immune response
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digestion
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structure
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diffusion
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temperature maintenance
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respiration