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What is an enzyme?

Protein.Catalyst.Not used up in the process.An enzyme is a protein which acts as a catalyst to speeds up a reaction but is not used up in the process.
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Answered by Alexander L. • Biology tutor
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Balance the following equation: Na + H2O -> NaOH + H2

2Na + 2H2O -> 2NaOH + H2
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Tu amigo español te ha preguntado sobre tu tiempo libre. Escríbele sobre tus intereses y actividades.

Normalmente en mi tiempo libre me gusta pasar tiempo con mis amigos. Frecuentemente vamos a la playa y jugamos juntos al futbol allí. Ademas, nos gusta hacer surf pero desafortunadamente todavía no soy un pr...
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Answered by Zoe A. • Spanish tutor
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Explain a benefit of using a) part-time staff in a business and b) full-time staff (3 marks each).

Part-time staff are useful to business as they are contracted for less than 40 hours a week and are therefore usually more flexible than full time staff. This means that their hours can be adjusted more easi...
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Expand and simplify 4x(x+3) - (2x-3)2

When dealing with such a question, an expansion question, the first part of the equation to look at is the brackets.Looking at the question above, one can see that there are two pairs of brackets - it would ...
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Answered by Tofi O. • Maths tutor
10350 Views