Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
20th September 2024
- 1Biology Required Practicals and Data Analysis
In the microbiology practical, why are agar plates incubated at 25 degrees Celsius in schools rather than at 37 degrees Celsius?
- 2Cell Biology
A cube-shaped model cell has sides of length 3 cm. Calculate the surface area to volume ratio of the cube. Give your answer in the form n : 1.
- 3Cell Structure and Microscopy
Why is a stain such as iodine used when preparing a slide?
- 4Cell Division and Stem Cells
What happens to the DNA before mitosis begins?
- 5Transport in and out of Cells
Define osmosis.
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