plumiAdaptations to water availability: OCR A‑Level Biology A questions
OCR A-Level Biology A past-paper questions on 3.1.3.4 Adaptations to water availability, 2016–2025, with mark schemes and examiner’s reports where available.
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Q3(d)
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All 11 questions on Adaptations to water availability, as a list
- June 2024, Paper 3, Q3(d) (2 marks): Many plants, such as Erica cinerea (bell heather), have evolved adaptations to limit water loss by transpiration. This is a drawing of a leaf of E. cinerea. Air
- June 2024, AS Paper 1, Q22(d) (2 marks): Xerophytes are plants that are adapted to living in dry environments. Explain two ways that xerophytes are adapted to prevent water loss in dry environments. 1
- June 2023, AS Paper 1, Q20 (1 mark): Which of the options is an adaptation of a hydrophyte? A A thick waxy cuticle B Fewer leaves, which results in a reduced SA:V ratio C Many stomata on the upper
- June 2022, AS Paper 1, Q10 (1 mark): Victoria cruziana is a tropical species of flowering plant, native to South America. Its leaves have stomata only on their upper surface and contain a large amo
- November 2021, Paper 1, Q19(b)(ii) (1 mark): Cacti are popular house plants. Suggest why cacti do not grow well in a terrarium. [1]
- June 2019, Paper 3, Q1(b) (3 marks): Sago pondweed has evolved many adaptations to its aquatic environment. Three such adaptations are described below. Explain the advantage of each adaptation. Ada
- June 2019, AS Paper 1, Q11 (1 mark): The giant water lily, Victoria amazonica, grows in the shallow waters of the Amazon river basin. Which of the following adaptations, A to D, enables Victoria am
- June 2018, AS Paper 1, Q9 (1 mark): Which of the following, A to D, is not an adaptation to reduce water loss in plants? A an extensive root system that extends far from the plant B leaves that ar
- June 2017, AS Paper 1, Q5 (1 mark): Many plants are adapted to the availability of water in their environment; one group of these plants is the xerophytes. Which one of the following statements co
- June 2017, AS Paper 2, Q2(b) (2 marks): Water Starwort is a hydrophyte belonging to the genus Callitriche. It is an aquatic plant which has its stems fully submerged in water. Cholla is a cactus belon
- June 2016, AS Paper 1, Q21(c) (2 marks): Halophytes are plants that have the ability to live in soils with a very low water potential. In the UK these plants form part of salt marsh communities. Sugges
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