Anyone know how to make the 5x Eyepeice lens into x50, I said put a x10 lens in the microscope so they would multiply to make x50 but I'm not sure if that's right...

Yes it was to set the objective lens to x10 because to find out the total magnification you multiply the magnification of the eyepiece by the magnification of the objective lens.

Reply 91

JPoynter14

6

I felt alright after coming out of that exam but after reading various responses about all the questions I now feel like a massive idiot. Thanks guys :smile:

Reply 92

Hdjsheheyeg

3

I just asked the teacher and he told me

Original post by Qwer :)

Soooooo true, I only knew what it was cause one of my friends took it for anti-stress

Reply 93

Aphrdotie

3

Original post by sillysauage

wtf was that cube stuff and nitrate ions to help plants grow??? amino acids???!!!!

for the cube, I said about the surface area to volume ratio and how it would affect the rate of diffusion i think you also had to compare how the smaller cube would have a higher rate or diffusion or something

Reply 94

Hdjsheheyeg

3

What whas the question about starch and sugars

Reply 95

Paul123m7

4

I said the bigger cube would need more nutrients than the smalle one and worked out the volume as evidence

Original post by Aphrdotie

for the cube, I said about the surface area to volume ratio and how it would affect the rate of diffusion i think you also had to compare how the smaller cube would have a higher rate or diffusion or something

Reply 96

farishaqqq

6

C6H1206 (glucose) and nitrate ions attained from the surrounding soils are used to create amino acids: which synthesize proteins: which are used for growth...

Reply 97

Hibbyxo

8

What was the first one was it c ????

Original post by qwer :)

soooooo true, i only knew what it was cause one of my friends took it for anti-stress

Reply 98

farishaqqq

6

for the 5 marker on the cubes;
-work out the surface area to volume ratio for both; the smaller cube as a greater surface area to volume ratio as its a single celled organism ( cannot remember what it was i think it was bacteria or some ****) meaning sufficient substances diffuse in and out of the cell meeting the demand of the cell
-The cube y (multi cellular organism) will have a lower surface area to volume ratio however you could mention that this is offset by the surfaces being adapted for substance exchange