Test
Proteins
Crea una cuenta gratis para terminar este test
Guarda tu progreso y consulta tu resultado final.
¿Ya tienes cuenta? Inicia sesión
Preguntas del test (26)
1Proteins are complex bio-chemicals containing?...
- ACarbon, oxygen,hydrogen
- BCarbon , hydrogen, oxygen, nitrogen, sulphur
- COxygen, nitrogen, carbon, hydrogen
2Proteins are made up of amino acids
- AVerdadero
- BFalso
3Proteins are p__________________
- APolysaccharides
- BPeptides
- CProtons
- DPolymers
4If proteins are polymers ,and are made up of amino acids, then amino acids must be monosaccharides.
- AVerdadero
- BFalso
5Some amino acids form Benzine ring structures
- AVerdadero
- BFalso
6Carbohydrates form glycosidic bonds
Lipids peptide bonds
and Proteins form ester bonds during condensation reaction- AVerdadero
- BFalso
7A peptide bond can be reversed by hydrolisis
- AVerdadero
- BFalso
8Roughly how many amino acids make 1 protein?
- A50
- B100
- C1000
- D10
- E5
9In a protein on which side is the amino acid group found? And what is it called in terms of 'terminus'?
- ARight & N-terminus
- BLeft & N-terminus
- CLeft & C-terminus
- DRight & C-terminus
10In a protein on which side is the carboxyl group found? And what is it called in terms of terminus?
- ARight & C-terminus
- BLeft & C-terminus
- CRight & N-terminus
- DLeft & N-terminus
11How many different amino acids are found in nature?
- A45
- B15
- C16
- D20
12How many amino acids are in a dipeptide?
- A3
- B2
- C4
- D20
13Water is released during a hydrolysis reaction.
- AVerdadero
- BFalso
14What's the only difference between different amino acids?
- ALength of carbon chain
- BTheir names
- CR group
- DAmount of atoms
15What is the name of the test for proteins?
- ABiuret
- BIodine
- CEmulsion
- DBenedict's
16Biuret test: to test the sample it first has to be ________________ so you add a few drops of ___________________________________.
- AAcidic , Hydrochloric acid
- BAlkaline, Copper (II) Sulfate
- CAcidic, sodium hydroxide
- DAlkaline, Sodium hydroxide
17Then you add copper (II) sulfate so the solution changes colour
- AVerdadero
- BFalso
18If the result is positive the solutions turns...?
- AWhite
- BPurple
- CBlue
- DOrange, yellow, green, red or brown
19The primary structure of proteins is made up of monomers called amine acids
- AVerdadero
- BFalso
20Depending 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?
- AIonic
- BCovalent
- CDisulfide bridges
- DHydrogen
- EVan der waals
21The tertiary structure is even more coiled/folded... what causes this?
- AIonic, hydrogen and covalent bonding
- BIonic, disufide bridges and covalent bonding
- CHydrogen, covalent and disulphide bridges
- DVan der waals, ionic, disulphide bridges and hydrogen bonding
22Sometimes the tertiary structure is the last structure of a protein
- AVerdadero
- BFalso
23Disulfide bridges occur between two cysteine amino acids in the polypeptide chain(s).
- AVerdadero
- BFalso
24Between the two cystein amino acids bond by the sulphur atoms...this is ionic bonding.
- AVerdadero
- BFalso
25the quaternary structure is how different polypeptide chains are held together by bonds.
- AVerdadero
- BFalso
26Which do not use proteins
- Aimmune response
- Bdigestion
- Cstructure
- Ddiffusion
- Etemperature maintenance
- Frespiration
Información
- Descripción
- A Levels AS Bio Test sobre Proteins, creado por Julia Romanów el 26/09/2015.
- Autor
- Julia Romanów
- Idioma
- English
- Visitas
- 32
- Etiquetas
- Valoración
- Aún sin valoraciones Valora este test