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Describe how the action of the mouth, oesophagus and stomach contributes towards the digestion of food? (6 Marks)

As this question is worth 6 marks, 6 different points need to be made to get all the marks. These could be two from each structure that is given. The teeth in the mouth break down food into smaller pieces...

Answered by Charlotte M. • Biology tutor

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Cystic Fibrosis (CF) is a recessively inherited disorder. A father is a suffer of CF, while the mother is normal and not a carrier. What is the chance their child will be a carrier of CF? Give your answer as a percentage.

First write a key for the alleles. (normal Allele=T. CF allele=t) If the mother is normal= TT Father is a suffer =tt. Then Draw a punnet diagram for the child Write a key for the punnet diagram. TT-normal...

Answered by Natasha I. • Biology tutor

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Give the full balanced symbol and word equation for aerobic respiration

glucose + oxygen --> energy + carbon dioxide + water C6H12O6 + 6O2 ---> energy + 6CO2 + 6H20

Answered by Justine V. • Biology tutor

10467 Views

Explain how bacteria can become resistant to antibiotics.

Sometimes, a chance mutation in bacterial DNA allows certain bacteria to become resistant to certain types of antibiotic. When an antibiotic is given, only the non-resistant strains of bacteria will be ki...

Answered by Rachel A. • Biology tutor

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What components is blood made up of?

Blood is primarily used to transport cells and different substances around the body. It can be divided into 4 categories of components: the blood plasma, trombocytes (platelets), leukocutes (white blood c...

Answered by Anatol G. • Biology tutor

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