Biology A H020: Planning Topical Past Paper Questions
OCR AS Biology A (H020) past-paper questions on Planning, free. This topic is regularly examined across 5 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
(a) The graph shows the rate of uptake of particles across a membrane by two different methods of diffusion. (b) Temperature and concentration are two factors that affect the rate of diffusion. State one other factor that affects the rate of diffusion. (c) Students used a model c…
(a) (i) State the cause of transpiration in plants. (ii) Two factors that affect the rate of transpiration in plants are humidity and air movement. Name one other factor that affects the rate of transpiration in plants. (b) A class of students investigated the effect of humidity…
The downy birch tree, Betula pubescens, produces varying numbers of leaf hairs. These hairs are between 200μm and 500μm long in response to different environmental conditions. (a) State the pattern of variation shown by leaf hair density. [1] (b) Leaf hair density can be measured…
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