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need to put f equation into g equation so replace x in g equation with 2x^2+1 gf : x --> 2(2x^2+1) / ((2x^2+1)-1) then need to simplify (expand brackets) 4x^2 + 2 / 2x^2 divide all by 2 (common factor)...

Factorise = take out common term (y in this case)

so divide each by y

i.e. 3y^2 / y = 3y

2y / y = 2

thus factorised:

= y(3y+2)

Best way to explain would be to draw a cell with both a big and a large SA:Vol ratio. Visually get to see the effect, to understand why the rate of osmosis changes.

note: SA = surface area and Vol ...

• chloroplasts

• cell wall

• vacuole

best way to show/teach student this would be to draw a plant cell and ask them to label/name structures in t...

5L water = 5000mL

because 1L = 1000mL so multiply by 5

if 750mL is poured into 6 bottles, first need to see how much total has been poured.

therefore, do 750mL * 6 = 4500mL

so ...