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Why are enzymes such as proteases and lipases used in some washing powders?

The role of enzymes such as proteases and lipases in the body is to break down proteins and fats respectively during digestion. Proteins are broken down into amino acids and fats are broken down into fatt...

MB
Answered by Megan B. Biology tutor
7493 Views

What are the two roots for the equation x^2 + 7x + 10 = 0

Start by looking for multiples of 10. You have the pairs 2 & 5 and 1 & 10. Both signs are positive in the original equation so it will either be positive 2 & 5 or positive 1 & 10. Clearly ...

ER
Answered by Edward R. Maths tutor
3238 Views

How do you answer a GCSE history exam question on the ‘usefulness’ of sources?

This question wants you to use both provenance and your own knowledge to assess the contents of sources. When bringing in your own knowledge, try to be as specific as you would be in any other essay. If t...

AB
Answered by Amy B. History tutor
6952 Views

How to conjugate and use the future tenses.

In Spanish there are two main future tenses. The first being the Informal Future which in English would be 'I am going', and the other being the Simple Future which in English would be '...

AD
Answered by Abigail D. Spanish tutor
2439 Views

How should I approach the longer (90 word) writing question?

Remember that the French writing exam is your opportunity to show off your knowledge and skills that you’ve built up over the last few years. The best advice would be not to overcomplicate things. Get the...

FB
Answered by Freddie B. French tutor
7268 Views

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