3580476
Beschreibung
Quiz von Julia Romanów, aktualisiert more than 1 year ago
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Erstellt von Julia Romanów
vor fast 9 Jahre
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Frage 1
Frage
Proteins are complex bio-chemicals containing?...
Antworten
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Carbon, oxygen,hydrogen
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Carbon , hydrogen, oxygen, nitrogen, sulphur
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Oxygen, nitrogen, carbon, hydrogen
Frage 2
Frage
Proteins are made up of amino acids
Antworten
- True
- False
Frage 3
Frage
Proteins are p__________________
Antworten
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Polysaccharides
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Peptides
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Protons
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Polymers
Frage 4
Frage
If proteins are polymers ,and are made up of amino acids, then amino acids must be monosaccharides.
Antworten
- True
- False
Frage 5
Frage
Some amino acids form Benzine ring structures
Antworten
- True
- False
Frage 6
Frage
Carbohydrates form glycosidic bonds
Lipids peptide bonds
and Proteins form ester bonds during condensation reaction
Antworten
- True
- False
Frage 7
Frage
A peptide bond can be reversed by hydrolisis
Antworten
- True
- False
Frage 8
Frage
Roughly how many amino acids make 1 protein?
Antworten
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50
-
100
-
1000
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10
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5
Frage 9
Frage
In a protein on which side is the amino acid group found? And what is it called in terms of 'terminus'?
Antworten
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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
Frage 10
Frage
In a protein on which side is the carboxyl group found? And what is it called in terms of terminus?
Antworten
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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
Frage 11
Frage
How many different amino acids are found in nature?
Antworten
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45
-
15
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16
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20
Frage 12
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How many amino acids are in a dipeptide?
Antworten
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3
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2
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4
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20
Frage 13
Frage
Water is released during a hydrolysis reaction.
Antworten
- True
- False
Frage 14
Frage
What's the only difference between different amino acids?
Antworten
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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
Frage 15
Frage
What is the name of the test for proteins?
Antworten
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Biuret
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Iodine
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Emulsion
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Benedict's
Frage 16
Frage
Biuret test: to test the sample it first has to be ________________ so you add a few drops of ___________________________________.
Antworten
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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
Frage 17
Frage
Then you add copper (II) sulfate so the solution changes colour
Antworten
- True
- False
Frage 18
Frage
If the result is positive the solutions turns...?
Antworten
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White
-
Purple
-
Blue
-
Orange, yellow, green, red or brown
Frage 19
Frage
The primary structure of proteins is made up of monomers called amine acids
Antworten
- True
- False
Frage 20
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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?
Antworten
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Ionic
-
Covalent
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Disulfide bridges
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Hydrogen
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Van der waals
Frage 21
Frage
The tertiary structure is even more coiled/folded... what causes this?
Antworten
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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
Frage 22
Frage
Sometimes the tertiary structure is the last structure of a protein
Antworten
- True
- False
Frage 23
Frage
Disulfide bridges occur between two cysteine amino acids in the polypeptide chain(s).
Antworten
- True
- False
Frage 24
Frage
Between the two cystein amino acids bond by the sulphur atoms...this is ionic bonding.
Antworten
- True
- False
Frage 25
Frage
the quaternary structure is how different polypeptide chains are held together by bonds.
Antworten
- True
- False
Frage 26
Frage
Which do not use proteins
Antworten
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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
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