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Draw a diagram of a human cell, include; the Nucleus, the Golgi Apparatus, Lysosomes, Ribosomes and Mitochondria, annotating your diagram with the general functions of each component and of the cell membrane.

Nucleus: Contains the DNA/ Human genome in the form of chromosomes (with the help of histone proteins), within a nuclear membrane which is inpenetrable by cytosolic enzymes. Golgi Apparatus: Transport/ modif...
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Answered by Victoria T. • Biology tutor
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(a) Factorisefully 3a3b+12a2b2 +9a5b3

3a^2b(a + 4b + 3a^3b^2 )
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Answered by Claudia M. • Maths tutor
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3. (a) State the nth term of each of the following sequences: (i) 3, 7, 11, 15, 19, ....

4n - 1 Find the difference between the numbers and this decides the number infront of n In the sequence, choose 1 to start - 4n - if n = 4 then this gives you 4 but we need 3 so 4n-1 If we test this and put ...
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Answered by Claudia M. • Maths tutor
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Expand and simplify (x+3)(x+5)

The easiest method for expanding these brackets is to use the FOIL method of expansion. This ensures you multiply every aspect of the brackets together. First - take the first terms of the brackets (so, x an...
AD
Answered by Adam D. • Maths tutor
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How to solve simultaneous equations?

Let's say we have two equtions: 3x + y = 8 5x + 2y = 14 In order to solve them, we need to bring one of the coefficients to the same number. Let's say we do that with y. So: 6x + 2y = 16 5x + 2y = 14 Now, we...
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Answered by Kamila W. • Maths tutor
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