Top answers


What are enzymes? What is the importance of enzymes for living beings?

Enzymes are proteins that are catalysts of chemical reactions. Chemistry shows us that catalysts are non-consumable substances that reduce the activation energy necessary for a chemical reaction to occur. En...
SP
Answered by Sonali P. • Biology tutor
29445 Views

What does Empiricism mean?

This is a branch of Philosophy that deals with experience and where our ideas of things come from' Empiricism' is Greek for experience. It's probably best discussed by the 17th and 18th century thinkers John...
AD
Answered by Alex D. • Philosophy tutor
4011 Views

When can I use the Italian presente indicativo instead of the Italian futuro semplice indicativo?

There are some contexts where the Italian presente indicativo is used to describe an action that will take place in the future. The Italian simple present is one of the most used tense in Italian, it is comm...
IT
Answered by Irene T. • Italian tutor
5613 Views

What is the partial fraction expansion of (x+2)/((x+1)^2)?

First we write the fraction in terms of partial fractions with two unknown numerators, A and B, as follows: (x+2)/(x+1) 2 = A/(x+1) + B/(x+1) 2 Note that since the denominator of the original fraction is of ...
KR
Answered by Kim R. • Maths tutor
5136 Views

Why do enzymes stop working at high temperatures?

With this question, you have to remember that enzymes are proteins. When the temperature gets too hot, the enzyme denatures . Denaturing is where the bonds that hold the enzyme together break, causing the ac...
CR
Answered by Callum R. • Biology tutor
12342 Views