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What is active transport?

Active transport is the transport of substances against their concentration gradient with the use of energy. Molecules naturally flow down their concentration gradient, ie. from where they are more concentra...
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Answered by Chris D. • Biology tutor
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Solve (x/4)-(2x/x+2) = 1. Give your solutions to 2 decimal places. You must show your working.

We will begin by eliminating fractions in the equation. To do this, the equation will be multiplied by 4 and (x+2), as these are the denominators of the two fractions. Multiplying by 4 gives:x - (8x/x+2) = 4...
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Answered by Dogu Z. • Maths tutor
9048 Views

How do I structure an essay?

At GCSE level essays should be structured with a simple Introduction- 3/4 paragraphs- Conclusion structure.Introduction: This should lay out your argument for the essay, and show how you will go about arguin...
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Answered by Beatrice D. • English tutor
2211 Views

Explain the differences between the Baroque and Classical period

The Baroque period was between the years 1600 and 1750. Key features included small orchestras, with often a focus on the harpsichord or string instruments, and often polyphonic textures. Example composers w...
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Answered by Beatrice D. • Music tutor
34669 Views

Why is the sky blue?

The Earth's atmosphere scatters incoming light from the sun. This incoming light is made up of lots of different colours. Each colour of light has a different wavelength and because of this, different colour...
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Answered by Hector S. • Physics tutor
2665 Views