# "Describe" questions — Pearson Edexcel A-Level Biology A (9BI0)

> 8 questions · biology

## How to answer

Say WHAT happens, in order. No reasoning. Structure: 1. First X. 2. Then Y. 3. Then Z. Assessment Objective: AO1. Every "describe" answer on this spec is marked against exactly this pattern.

## Sample questions

1. [A cell in the pancreas produces the protein insulin. Describe the roles of DNA, messenger RNA (mRNA) and ribosomes in pr…](https://www.gradenine.co.uk/q/a-cell-in-the-pancreas-produces-25372065)
2. [A student is culturing bacteria on agar plates in a school laboratory. Describe the aseptic techniques the student shoul…](https://www.gradenine.co.uk/q/a-student-is-culturing-bacteria-on-4f7411b4)
3. [Describe the pathway of a reflex arc from the moment a stimulus is detected to the moment a response occurs. Include the…](https://www.gradenine.co.uk/q/describe-the-pathway-of-a-reflex-5a0da601)
4. [A population of Arctic foxes living in a snowy environment includes individuals with white fur and individuals with brow…](https://www.gradenine.co.uk/q/a-population-of-arctic-foxes-living-8f6f3ffd)
5. [A food scientist is analysing the nutritional content of a new sports drink. The drink contains glucose, starch, and a s…](https://www.gradenine.co.uk/q/a-food-scientist-is-analysing-the-9f39226a)
6. [Describe the double circulatory system in humans, explaining why having two separate circuits is important for efficient…](https://www.gradenine.co.uk/q/describe-the-double-circulatory-system-in-a7c583a8)
7. [Describe the importance of biodiversity and explain how human activities can threaten it. In your answer, refer to the i…](https://www.gradenine.co.uk/q/describe-the-importance-of-biodiversity-and-c1f06759)
8. [A population of beetles lives on a large island. Over thousands of years, the island splits into two separate landmasses…](https://www.gradenine.co.uk/q/a-population-of-beetles-lives-on-d8e51997)

## Related

- [Pearson Edexcel A-Level Biology A (9BI0) revision notes](https://www.gradenine.co.uk/learn/pearson-edexcel-a-level-biology-a-9bi0)
- [Pearson Edexcel A-Level Biology A (9BI0) past papers](https://www.gradenine.co.uk/past-papers/pearson-edexcel-a-level-biology-a-9bi0)
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