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