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Putting bee honey on a cut kills bacteria. Honey contains a high concentration of sugar. Use your knowledge of water potential to suggest how putting honey on a cut kills bacteria. (AQA BIOL1)

Sugar is a solute and is able to dissolve in water. When sugar is dissolved in water, it has a low water potential. Water moves from a high water potential to a low water potential; from where there is a ...

Answered by Charlotte S. • Biology tutor

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What is the Difference between saturated and unsaturated fatty acids?

Firstly, saturated fatty acids are where all the carbon atoms have single bonds between them making the lipid saturated as no more hydrogens can be added. Having

Answered by Katie D. • Biology tutor

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What are the economic problems associated with an ageing population?

Firstly, an ageing population puts a greater strain on health services, which will therefore require more government funding; this is particularly an issue because elderly people are more susceptible to h...

Answered by Anna C. • Geography tutor

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How do I use critics in a coursework essay?

In a coursework essay only use critics that support the themes that you are drawing upon. You should make sure you interpolate them properly, it's better to introduce them and explain them after the quota...

Answered by Isobel B. • English Literature tutor

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Describe the energy changes in the 4 stages of a bungee jump - at the top, in freefall, when the cord is stretching and at the bottom

There are 3 forms of energy during a bungee jump, kinetic (KE = 0.5mv^2), gravitational potential (GPE = mgh) and elastic potential (EPE = 0.5kx^2). Energy is conserved throughout, and it's assumed none i...

Answered by Felix E. • Physics tutor

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