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Why are enzymes called catalysts if they are proteins and not chemicals?

A catalyst refers to many types of different molecules or chemicals which can reduce the activation energy of a reaction without being used up itself. Activation energy is the minimum ene...

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Answered by Meghna V. Biology tutor
3945 Views

How is exocytosis different from active transport?

This is a common and understandable mistake that is made since essentially both of these processes refer to molecules being moved out of the cytoplasm of a cell using energy. There is however a major diff...

MV
Answered by Meghna V. Biology tutor
14639 Views

How would you answer a frequency tree question such as '400 people were asked if they drink orange juice, 8/10 say yes, 25% of these say yes to drinking 3 cups a day. Complete the frequency diagram.'?

There are a total of 400 people, therefore to work out how many people said yes you would need to divide 400 by 10 which would equal 40 then times 40 by 8 which comes to 320. To establish how many people ...

MC
Answered by Megan C. Maths tutor
4618 Views

Describe the cell cycle

The process of cell division is called the cell cycle. G1 phase - Cell grows in size and cellular contents (e.g. organelles) duplicate so that the new cells will have enough to function. S phase - The ch...

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Answered by Samuel P. Biology tutor
3334 Views

What is the difference between diffusion, osmosis and active transport?

Diffusion is the movement of particles, either in gas or solution, from an area of high concentration to an area of low concentration until the concentration in the whole area is equal. This also occurs a...

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Answered by Samuel P. Biology tutor
2979 Views

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