Daily Practice · GCSE Science

Daily Practice - GCSE Science

9th September 1997

5 questions · GCSE · 584 questions in this band

1
Red-shift and the Expanding Universe
Explain why red-shift observations support the idea that the universe is expanding, rather than Earth simply being at the centre of the universe with everything moving away from it.
2
Biology 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?
3
Cell Biology
Name the structure in a plant cell that controls the substances entering and leaving the cell.
4
Cell Structure and Microscopy
Why is a stain such as iodine used when preparing a slide?
5
Cell Division and Stem Cells
What happens to the DNA before mitosis begins?

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