AQA GCSE Combined Trilogy Biology 8464 - Paper 1 - 14th May 2019

Reply 40

hkazaly

7

i wrote that , do u think it’s righy?

Original post by Dividingjem2

The beta blocker I wrote about anaerobic respiration and oxygen debt and build up of lactic acid

Reply 41

hkazaly

7

I know oh my cod

Original post by susiiiieeeee

nitrate ions. Three questions on ****ing nitrate ions. I can’t oml

Reply 42

birdnerd

14

Went fairly well for me, but not as much variation in topics as I thought there would be? The 4 marker on magnification, and the final 3 marker, also threw me a little but I salvaged what I could!

Did anyone else get 280um for the real object size question? Seemed too big to me.
Did anyone else also say that the water in the test tube represented the blood, and the tubing bag was the semi colon? Had no idea what to put for that one....

Just remember that it's only a small percentage of the overall GCSE science grades, you can make it up in an another exam! :smile:

)

Reply 43

Raja12

16

yh that's good. I wrote about anaerobic and aerobic and also the lungs. the lungs because slower heart rate means that the blood will reach the lungs slower, which means that the exchange of carbon dioxide and oxygen will take longer than usual. this will lead to the person running out of breath as the organs are provided with less amount of oxygen and at a slower rate.

Original post by Dividingjem2

The beta blocker I wrote about anaerobic respiration and oxygen debt and build up of lactic acid

Reply 44

hkazaly

7

for some reason i got 2,150,000 for the real object size question , what the fucj???

Reply 45

Azhar_142

3

Original post by Raja12

yh that's good. I wrote about anaerobic and aerobic and also the lungs. the lungs because slower heart rate means that the blood will reach the lungs slower, which means that the exchange of carbon dioxide and oxygen will take longer than usual. this will lead to the person running out of breath as the organs are provided with less amount of oxygen and at a slower rate.

Same but the paper was difficult

Reply 46

Raja12

16

I wrote small intestine for that partially permeable thing and wrote capillaries for the other thing. is that right?

Original post by hkazaly

i wrote that , do u think it’s righy?

Original post by birdnerd

Went fairly well for me, but not as much variation in topics as I thought there would be? The 4 marker on magnification, and the final 3 marker, also threw me a little but I salvaged what I could!

Did anyone else get 280um for the real object size question? Seemed too big to me.
Did anyone else also say that the water in the test tube represented the blood, and the tubing bag was the semi colon? Had no idea what to put for that one....

Just remember that it's only a small percentage of the overall GCSE science grades, you can make it up in an another exam! :smile:

)

Reply 47

Mina16000

9

what was the narrow capillary question

Reply 48

sqrt of 5

19

the last question what did you put??? I put glucose + nitrate ions = amino acids = proteins
what about the microscope one?

Reply 49

neeevv

1

its 100% 10.4 the person that got a 9 did 60 instead of 66 which it actually is if you read off the graph

Reply 50

elizabethlau

9

Original post by hkazaly

for some reason i got 2,150,000 for the real object size question , what the fucj???

i got that at first , i think you multiplied instead of divided

Reply 51

Chanel :))

1

Original post by hkazaly

for some reason i got 2,150,000 for the real object size question , what the fucj???

Did you convert it back ?

Reply 52

jordanconway10

4

Original post by Susiiiieeeee

Nitrate ions. Three questions on ****ing nitrate ions. I can’t oml

I wash rushing and I wrote about active transport for all of them.

Reply 53

divyansh16

5

yes partially permeable membrane = walls of small intestine / villi
water - blood in the bloodstream

Original post by Raja12

I wrote small intestine for that partially permeable thing and wrote capillaries for the other thing. is that right?

Reply 54

cindayy

6

Original post by aahmedblue

What did people get for the magnification question and the beta blocker 6 mark?

Slow heart rate = slower for oxygen to get to body = get out of breath quicker

Reply 55

Mellen03

8

That exam for me was so easy. I loved that exam!

Reply 56

birdnerd

14

I wrote that a narrower capillary allowed for a smaller, and therefore more exact and accurate measurment (mm). Not sure if that's right tho.

Original post by Mina16000

what was the narrow capillary question

Reply 57

Azhar_142

3

I got 8 hundred and some at.dont remember exactly. You had to divide

Reply 58

Gcses201999

7

I put the same thing for the nitrate ions and for the microscope I just put how you prep a slide with the the cover slip, get a really thing slice with the forceps etc.,and how you set up a microscope to view the root hair cells with the focus wheel and coarse focussing wheel.

Original post by sqrt of 5