OCR GATEWAY BIOLOGY B 12th June B4 B5 B6

Scroll to see replies

ahh damn it was 0.88%.. it said to find the lowest and work it out as a percentage of the total.
The lowest one was 11, so 11 as a percentage of 1244 = 11/1244 x 100= 0.88
I did 1244/100 x 11! argh what was i thinking how can 11 as a percentage of 1244 be 136% lol.. ah well.

Reply 41

heench

Original post by AnnaValentine

I thought it was 16cm because the zoom was 4x and the measurement of the diameter was 4..? Probably got it wrong... Oh well :s-smilie:

Posted from TSR Mobile

omd that makes more sense:/ i think im wrong i just didnt measure it because it didnt say diagram drawn accurately or use a ruler to measure diameter:/

Reply 42

ohboyimscrewed

Wasn't the percentage of sand the same as clay as they were both 20mm? Clay was 20mm and equaled 40%.

(20/50)*100 = 40%

20mm = How high the sand was
50mm = Total amount of soil in the pot.

The intestine was 1cm:

d = 4cm

4/4 = 1

Surface area was something like 1727.

Animal was prokaryote:

(11/1244)*100 = 0.88%

After I read off of the graph I got a difference in percentages for the two kidney doners of 7% I cannot remember the exact number.

79% - 72% = 7%

(These could be incorrect but it was what I remember putting.)

(edited 9 years ago)

Reply 43

heench

Original post by ohboyimscrewed

Wasn't the percentage of sand the same as clay as they were both 20mm? Clay was 20mm and equaled 40%.

(20/50)*100 = 40%

20mm = How high the sand was
50mm = Total amount of soil in the pot.

i got the sand to be 1.8 cm = 18mm ? :/

Reply 44

heench

Original post by AnnaValentine

I got 18mm too :smile:

but then you had to double it to get 36% for the actual answer

Posted from TSR Mobile

ah i never doubles i just did 18/50 x 100 and got 36%

Reply 45

EastGuava

18mm here too. I think they might accept a range of values due to accuracy. I wrote 20mm initially but measured it again so yeah.

Reply 46

EastGuava

I hope that other question wasn't 0.88%. That's what I got with my first method (which is why I thought I put prokaryote but I changed it to fungi) gahh

Reply 47

ohboyimscrewed

Original post by EastGuava

I hope that other question wasn't 0.88%. That's what I got with my first method (which is why I thought I put prokaryote but I changed it to fungi) gahh

tbh the wording on that question and some others was pretty bad. I put Loam down for the soil but changed at the last minute to Sandy. Oh well, only one mark gone.

Reply 48

EastGuava

Original post by ohboyimscrewed

tbh the wording on that question and some others was pretty bad. I put Loam down for the soil but changed at the last minute to Sandy. Oh well, only one mark gone.

I agree, it's hard to understand what they're actually asking sometimes v_v. Aw yeah that one was definitely loam.

Reply 49

KhloeCasser

OMG wait loads more people got 0.88% as well!?!?!? YES!!!

Reply 50

ohboyimscrewed

Original post by KhloeCasser

OMG wait loads more people got 0.88% as well!?!?!? YES!!!

Everyone's answers just seem to be one big cluster****. We could all be wrong :tongue:

Reply 51

KhloeCasser

Original post by ohboyimscrewed

Everyone's answers just seem to be one big cluster****. We could all be wrong :tongue:

sshhhhh dont spoil my moment haha :P

Reply 52

heench

forever depending on low grade boundaries, who knows what the grade boundaries were last year for this course? (with the section D spec)

Reply 53

Random20

I think the grade boundaries are still going to be quite lot just because of how many exams people are having this year compared to others means it's harder for all the info to stay in our brains haha

Reply 54

almostover

Just remember that we have B1, B2 and B3 aswell as coursework to boost our grades. Usually people remember the small stuff they get wrong and forget about the six markers etc. (which are a larger proportion of the marks) so I would not worry too much if you thought it went bad.

Reply 55

heench

yeah i guess, this is out of 85 tho so it counts as a bigger percentage?- right now im struggling to think of what i did get right haha

Reply 56

almostover

For the question on the difference on bacteria and green plants did people put about how they both produce glucose but bacteria uses sulfur and plants use light energy

Reply 57

ohboyimscrewed

Original post by almostover

For the question on the difference on bacteria and green plants did people put about how they both produce glucose but bacteria uses sulfur and plants use light energy