plumiTriglycerides and lipids: Edexcel International A Level Biology questions
Edexcel International A Level Biology past-paper questions on 1.1.4 Triglycerides and lipids, 2019–2025, with mark schemes and examiner’s reports where available.
All papers
All years
Q8(a)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDFQ8(a)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDFQ6(b)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDFYour answerQ7(a)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDFQ1(a)(ii)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDFYour answerQ7(a)(ii)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDFYour answerQ7(b)(ii)
The whole paper ↗Loading the start of the question…
Loading the question…
Open the full PDFYour answerQ4(a)(iii)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDFYour answerQ1(b)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDFQ8(a)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDFQ4(b)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDFQ2(a)(i)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDFYour answerQ2(a)(ii)
The whole paper ↗Loading the start of the question…
Loading the question…
Open the full PDFYour answerQ2(a)(iii)
The whole paper ↗Loading the start of the question…
Loading the question…
Open the full PDF
All 14 questions on Triglycerides and lipids, as a list
- October 2024, AS Unit 1, Q8(a) (3 marks): Avocados are high in unsaturated fatty acids and low in saturated fatty acids. Compare and contrast the structure of an unsaturated fatty acid and the structure
- January 2024, AS Unit 1, Q8(a) (2 marks): Tropical sprue is a disorder that limits the absorption of nutrients into the blood. Consumption of unsaturated lipids has been proposed as a cause of tropical
- June 2023, AS Unit 1, Q6(b) (1 mark): Which row of the table is correct for an unsaturated fatty acid? (1) Carbon : hydrogen ratio Contains carbon–carbon compared with a saturated double bonds fatty
- January 2023, AS Unit 1, Q7(a) (2 marks): Triglycerides are fats. Describe the structure of a triglyceride. (2)
- October 2022, AS Unit 1, Q1(a)(ii) (1 mark): Which type of bond is found in this molecule? (1) A ester B glycosidic C hydrogen D peptide
- June 2022, AS Unit 1, Q7(a)(ii) (1 mark): One of the bonds present in phospholipids is an ester bond. Which diagram shows an ester bond? (1) H O A N C O O B C C O C C O C H O D N O C
- June 2022, AS Unit 1, Q7(b)(ii) (1 mark): Which row in the table describes an unsaturated fatty acid compared with a saturated fatty acid with the same number of carbon atoms? (1) Has double bonds betwe
- October 2021, AS Unit 1, Q4(a)(iii) (1 mark): Which row of the table describes a saturated lipid? (1) carbon-carbon double bonds carbon : hydrogen ratio higher than in an unsaturated A absent fatty acid cha
- June 2021, AS Unit 1, Q1(b) (3 marks): Triglycerides are lipids. Describe how an unsaturated triglyceride is synthesised. (3)
- October 2020, AS Unit 1, Q8(a) (3 marks): Compare and contrast the structure of a triglyceride and a phospholipid. (3)
- January 2020, AS Unit 1, Q4(b) (2 marks): Explain why fatty acids are less soluble in blood than glucose and sodium chloride. (2)
- June 2019, AS Unit 1, Q2(a)(i) (1 mark): What is the ratio of glycerol to fatty acid in a triglyceride molecule? (1) A 1:1 B 1:3 C 3:1 D 3:3
- June 2019, AS Unit 1, Q2(a)(ii) (1 mark): Which diagram shows the bond that joins a glycerol molecule to a fatty acid in a triglyceride? (1) H O A C N C H OH B C N C O C C O C OH D C O C
- June 2019, AS Unit 1, Q2(a)(iii) (2 marks): The table gives some information about four fatty acids. Number of double bonds Fatty acid Number of carbon atoms between carbon atoms butyric 0 4 stearic 0 18
Questions, mark schemes and examiner’s reports are © Pearson Edexcel, from their published past papers. Plumi isn’t affiliated with any exam board. Want whole papers? Edexcel International A Level Biology past papers.
The Plumi iPad app also offers exam-style questions with AI feedback on your handwritten working.