Starch & Cellulose — Quiz

Answer the questions to test your GCSE knowledge of starch and cellulose. Click “Check Answers” to see your score.

1. What is the monomer used to build both starch and cellulose?🧩

a) Amino acids
b) Glucose
c) Fatty acid
d) Nucleotide

2. What type of reaction links glucose units together to form these polymers?💧

a) Neutralisation
b) Condensation (water is released)
c) Decomposition
d) Combustion

3. Which best describes the role of starch in plants?🌱

a) Main structural material in cell walls
b) Energy storage
c) Speeds up reactions
d) Carries genetic information

4. Which best describes the role of cellulose in plants?🌿

a) Energy storage
b) Structural support in cell walls
c) Enzyme function
d) Oxygen transport

5. When two glucose molecules join to start a polymer chain, which small molecule is released?

a) Oxygen
b) Hydrogen
c) Water
d) Carbon dioxide

6. Which description matches cellulose chains?

a) Coiled and compact
b) Straight chains that pack into strong fibres
c) Single small molecules
d) Gas molecules in cells

7. Which description matches starch chains?

a) Straight chains forming fibres
b) Coiled/helix for compact storage
c) Gas bubbles
d) DNA strands

8. What is the chemical formula of glucose?

9. Cellulose gives plant cell walls extra __________

10. Which element is NOT present in carbohydrates such as starch and cellulose?

a) Carbon
b) Hydrogen
c) Nitrogen
d) Oxygen