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Describe the structure of the heart, relating to it's function.

The heart is divided into two halves - right and left. In each half there are two chambers - an atria and a ventricle, which are connected by a valve. The right atria receives deoxygenated blood from the bod...
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Answered by Tom T. • Biology tutor
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How do I answer a describe question?

To answer a describe question, you must make statements containing facts which answer the question. For each correct statement that you make, you will receive 1 mark. You can also develop points by adding mo...
Answered by • Geography tutor
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Describe and explain how blood in the right ventricle travels to the left atrium.

The muscle of the right ventricle contracts. This forces the {right atrio-ventricular/tricuspid} valve to close and the {right semi-lunar/pulmonary} valve to open. The blood is pumped through the pulmonary a...
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Answered by David A. • Biology tutor
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How accurate is it to say that, in the years 1852–67, the most significant factor driving parliamentary reform was campaigning by the Reform League?

Introduction- Bring in your answer to the question, and explain the structure of your essay briefly. How is significance measured in your answer?POINT- Reform League (start with the named factor and link the...
Answered by • History tutor
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When propanal is reacted with potassium cyanide under weakly acidic conditions the resulting mixture does not rotate plane polarised light. Explain this observation.

A common mistake is to answer this question with the explanation that the light is not rotated because no optical isomers are present. However, this is incorrect. The only other time where plane polarised li...
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Answered by Sally D. • Chemistry tutor
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