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Module 1 - WJEC

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AS Biology - Biochemical Molecules

Question 1 of 10 Question 1 of 10

1

-SELECT THREE-
What do ALL monosaccharides contain?

Select one or more of the following:

  • Carbon

  • Oxygen

  • Hydrogen

  • Nitrogen

  • Phosphorous

Explanation

Question 2 of 10 Question 2 of 10

1

Which of the following is an ALPHA-glucose?

Select one or more of the following:

Explanation

Question 3 of 10 Question 3 of 10

1

A ester bond is formed when two monosaccharides join together.

Select one of the following:

  • True
  • False

Explanation

Question 4 of 10 Question 4 of 10

1

What is formed when two molecules of alpha-glucose join together?

Select one of the following:

  • Lactose

  • Sucrose

  • Maltose

Explanation

Question 5 of 10 Question 5 of 10

1

How many levels are there in a protein structure?

Select one of the following:

  • 3

  • 5

  • 4

  • 1

  • 2

Explanation

Question 6 of 10 Question 6 of 10

1

A triglyceride contains 1 glycerol and 3 fatty acids.

Select one of the following:

  • True
  • False

Explanation

Question 7 of 10 Question 7 of 10

1

Tails of a phospholipid are hydrophobic.

Select one of the following:

  • True
  • False

Explanation

Question 8 of 10 Question 8 of 10

1

After preforming the biuret test on three solutions (A,B+C)
A - colourless > blue
B - colourless > violet
C - colourless > blue
This means that solution B is:

Select one of the following:

  • Water

  • Starch

  • Protein

Explanation

Question 9 of 10 Question 9 of 10

1

In cellulose, every alternation beta-glucose is rotated by

Select one of the following:

  • 360 degrees

  • 270 degrees

  • 90 degrees

  • 180 degrees

Explanation

Question 10 of 10 Question 10 of 10

1

-SELECT FOUR-
What bonds are present in a Tertiary + Quaternary protein structure?

Select one or more of the following:

  • Ester

  • Glycosidic

  • Hydrogen

  • Disuphide Bridges

  • Hydrophobic interactions

  • Peptide

  • Ionic

Explanation