Julia Romanów
Quiz by , created more than 1 year ago

A Levels AS Bio Quiz on Proteins, created by Julia Romanów on 26/09/2015.

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Julia Romanów
Created by Julia Romanów almost 9 years ago
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Proteins

Question 1 of 26

1

Proteins are complex bio-chemicals containing?...

Select one of the following:

  • Carbon, oxygen,hydrogen

  • Carbon , hydrogen, oxygen, nitrogen, sulphur

  • Oxygen, nitrogen, carbon, hydrogen

Explanation

Question 2 of 26

1

Proteins are made up of amino acids

Select one of the following:

  • True
  • False

Explanation

Question 3 of 26

1

Proteins are p__________________

Select one of the following:

  • Polysaccharides

  • Peptides

  • Protons

  • Polymers

Explanation

Question 4 of 26

1

If proteins are polymers ,and are made up of amino acids, then amino acids must be monosaccharides.

Select one of the following:

  • True
  • False

Explanation

Question 5 of 26

1

Some amino acids form Benzine ring structures

Select one of the following:

  • True
  • False

Explanation

Question 6 of 26

1

Carbohydrates form glycosidic bonds
Lipids peptide bonds
and Proteins form ester bonds during condensation reaction

Select one of the following:

  • True
  • False

Explanation

Question 7 of 26

1

A peptide bond can be reversed by hydrolisis

Select one of the following:

  • True
  • False

Explanation

Question 8 of 26

1

Roughly how many amino acids make 1 protein?

Select one of the following:

  • 50

  • 100

  • 1000

  • 10

  • 5

Explanation

Question 9 of 26

1

In a protein on which side is the amino acid group found? And what is it called in terms of 'terminus'?

Select one of the following:

  • Right & N-terminus

  • Left & N-terminus

  • Left & C-terminus

  • Right & C-terminus

Explanation

Question 10 of 26

1

In a protein on which side is the carboxyl group found? And what is it called in terms of terminus?

Select one of the following:

  • Right & C-terminus

  • Left & C-terminus

  • Right & N-terminus

  • Left & N-terminus

Explanation

Question 11 of 26

1

How many different amino acids are found in nature?

Select one of the following:

  • 45

  • 15

  • 16

  • 20

Explanation

Question 12 of 26

1

How many amino acids are in a dipeptide?

Select one of the following:

  • 3

  • 2

  • 4

  • 20

Explanation

Question 13 of 26

1

Water is released during a hydrolysis reaction.

Select one of the following:

  • True
  • False

Explanation

Question 14 of 26

1

What's the only difference between different amino acids?

Select one of the following:

  • Length of carbon chain

  • Their names

  • R group

  • Amount of atoms

Explanation

Question 15 of 26

1

What is the name of the test for proteins?

Select one of the following:

  • Biuret

  • Iodine

  • Emulsion

  • Benedict's

Explanation

Question 16 of 26

1

Biuret test: to test the sample it first has to be ________________ so you add a few drops of ___________________________________.

Select one of the following:

  • Acidic , Hydrochloric acid

  • Alkaline, Copper (II) Sulfate

  • Acidic, sodium hydroxide

  • Alkaline, Sodium hydroxide

Explanation

Question 17 of 26

1

Then you add copper (II) sulfate so the solution changes colour

Select one of the following:

  • True
  • False

Explanation

Question 18 of 26

1

If the result is positive the solutions turns...?

Select one of the following:

  • White

  • Purple

  • Blue

  • Orange, yellow, green, red or brown

Explanation

Question 19 of 26

1

The primary structure of proteins is made up of monomers called amine acids

Select one of the following:

  • True
  • False

Explanation

Question 20 of 26

1

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?

Select one of the following:

  • Ionic

  • Covalent

  • Disulfide bridges

  • Hydrogen

  • Van der waals

Explanation

Question 21 of 26

1

The tertiary structure is even more coiled/folded... what causes this?

Select one of the following:

  • Ionic, hydrogen and covalent bonding

  • Ionic, disufide bridges and covalent bonding

  • Hydrogen, covalent and disulphide bridges

  • Van der waals, ionic, disulphide bridges and hydrogen bonding

Explanation

Question 22 of 26

1

Sometimes the tertiary structure is the last structure of a protein

Select one of the following:

  • True
  • False

Explanation

Question 23 of 26

1

Disulfide bridges occur between two cysteine amino acids in the polypeptide chain(s).

Select one of the following:

  • True
  • False

Explanation

Question 24 of 26

1

Between the two cystein amino acids bond by the sulphur atoms...this is ionic bonding.

Select one of the following:

  • True
  • False

Explanation

Question 25 of 26

1

the quaternary structure is how different polypeptide chains are held together by bonds.

Select one of the following:

  • True
  • False

Explanation

Question 26 of 26

1

Which do not use proteins

Select one or more of the following:

  • immune response

  • digestion

  • structure

  • diffusion

  • temperature maintenance

  • respiration

Explanation

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