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Calculate the percentage of Copper in Copper oxide (CuO, Mr=80). (3 marks)

Ar of Cu = 64 (1 mark) Percentage of copper in CuO = 64/80 x100 (1 Mark) Percentage of copper in CuO = 80% (1 mark)

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What is the difference between haploid and diploid cells? (2 Marks)

Diploid cells contain 2 sets of chromosomes (23 pairs of chromosomes) e.g. body cells. Haploid cells contain half the amount of chromosomes as diploid cells (only

Answered by Katie D. • Biology tutor

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Describe how a sperm cell is adapted to its role (4 marks).

The role of a sperm cell is to fertilise an egg cell and pass on genetic material. The nucleus of the sperm cell contains the male genetic material/DNA. The head of the sperm cell contains many mitochondr...

Answered by Katie D. • Biology tutor

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How can I make my personal statement stand out?

As well as the typical answers to this: 'say what you love about the subject', 'make sure your personality comes across' etc, the main way in which I believe a personal statement stands out is by demonstr...

Answered by Tutor117948 D. • Personal Statements tutor

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How should I structure a comparative essay?

There are two main ways in which this can be done.The first is to write about the texts one after the other, analyse one in full in relation to the question focus (e.g. war), and then move onto the other....

Answered by Tutor117948 D. • English Literature tutor

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