Higher Chemistry

1
Higher Chemistry
Unit 2 Section 9 Natural Products Multiple Choice
Questions
This is designed to be used by teachers to help
students develop skills in answering multiple
choice questions.
2
Higher ChemistryUnit 2 - Section 9 Natural
ProductsMultiple Choice Questions

• 1. In the formation of hardened fats from
  vegetable oils, the hydrogen
• A. causes cross-linking between chains
• B. causes hydrolysis to occur
• C. increases the carbon chain length
• D. reduces the number of carbon- carbon double
  bonds

D.
Answer
3
Higher ChemistryUnit 2 - Section 9 Natural
ProductsMultiple Choice Questions

• 2. Olestra is a calorie free fat made by reacting
  fatty acids with sucrose. The structure of a
  sucrose molecule can be represented as shown.
• How many fatty acid molecules can react with one
  molecule of sucrose?
• A. 3 B. 5 C. 8 D. 11

C.
Answer
4
Higher ChemistryUnit 2 - Section 9 Natural
ProductsMultiple Choice Questions

• 3. Proteins can be denatured under acid
  conditions. During this denaturing, the protein
  molecule
• A. changes shape
• B. is dehydrated
• C. is neutralised
• D. is polymerised

A.
Answer
5
Higher ChemistryUnit 2 - Section 9 Natural
ProductsMultiple Choice Questions

• 4. The production of fatty acids and glycerol
  from fats in foods is an example of
• A. hydrolysis
• B. hydrogenation
• C. dehydration
• D. dehydrogenation

A.
Answer
6
Higher ChemistryUnit 2 - Section 9 Natural
ProductsMultiple Choice Questions

• 5. When two amino acids condense together, water
  is eliminated and a peptide link is formed. Which
  of the following represents this process?
• A.
• B.
• C.
• D.

A.
Answer
7
Higher ChemistryUnit 2 - Section 9 Natural
ProductsMultiple Choice Questions

• 6. Amino acids are converted into proteins by
• A. dehydration
• B. hydrogenation
• C. hydrolysis
• D. condensation

D.
Answer
8
Higher ChemistryUnit 2 - Section 9 Natural
ProductsMultiple Choice Questions

• 7. Fats and oils can be classified as
• A. carbohydrates
• B. acids
• C. esters
• D. alcohols

C.
Answer
9
Higher ChemistryUnit 2 - Section 9 Natural
ProductsMultiple Choice Questions

• 8. The breakdown of fats and oils produces
  glycerol and fatty acids in the ratio of
• A. one mole to two moles
• B. one mole to three moles
• C. one mole to four moles
• D. one mole to five moles

B.
Answer
10
Higher ChemistryUnit 2 - Section 9 Natural
ProductsMultiple Choice Questions

• 9. Fats have higher melting points than oils
  because fats
• A. have more hydrogen bonds
• B. have stronger van der Waals forces
• C. are more loosely packed
• D. are more unsaturated

B.
Answer
11
Higher ChemistryUnit 2 - Section 9 Natural
ProductsMultiple Choice Questions

• 10. Hormones and enzymes are
• A. fibrous proteins
• B. globular proteins
• C. fats
• D. oils

B.
Answer