Igcse edexcel biology

Private bio tutor here! I hope you all aced the exam! Could I ask you all to give me a run down of what each of the questions were today? I don't expect one person to know them all, but hopefully together we can figure it out.
Thanks
Mandy

Reply 7

mystary

12

Original post by toothless-luxury

q1: food web (4 marks; 2MCQs, drawing food chain), substances absorbed from the blood (4 marks), transfers pathogens (2marks), calculating magnification (2 marks), q2: effect of changing light intensity on pondweed's rate of photosynthesis, q3: fill in the blanks for yoghurt production, q4: respirometer, q5: greenhouse gases, greenhouse gas effect, calculatingpercentage of emissions by energy production, commenting on results, q6: flower, sexual vs asexual reproduction, artificial andnatural in plants, q7: woman with 4.3 litres of blood calculation (3 marks), percentage difference inmass of haemoglobin calculation (2 marks), comment on results (5 marks), three differences between WBCs and RBCs structure(3 marks), , q8: cystic fibrosis, q9: different solutions of mineral ions, q10: designing experiment for the co2concentration for maximum crop yield

thanx

Reply 8

mandymoo6118

Original post by toothless-luxury

q1: food web (4 marks; 2MCQs, drawing food chain), substances absorbed from the blood (4 marks), transfers pathogens (2marks), calculating magnification (2 marks), q2: effect of changing light intensity on pondweed's rate of photosynthesis, q3: fill in the blanks for yoghurt production, q4: respirometer, q5: greenhouse gases, greenhouse gas effect, calculatingpercentage of emissions by energy production, commenting on results, q6: flower, sexual vs asexual reproduction, artificial andnatural in plants, q7: woman with 4.3 litres of blood calculation (3 marks), percentage difference inmass of haemoglobin calculation (2 marks), comment on results (5 marks), three differences between WBCs and RBCs structure(3 marks), , q8: cystic fibrosis, q9: different solutions of mineral ions, q10: designing experiment for the co2concentration for maximum crop yield

Fantastic! Thank you

Reply 9

for the question where we had to draw the line graph, mine didn't start at 0. there was no line from 0-2 if you get what I mean - it started at 2 and then went down. is that fine?

Reply 10

do u think grade boundaries will be higher than last year? 141/180 last year = 9, do u think it will go up a lot

Reply 11

does anyone know the answer to the CORMSS q at the end?

Reply 12

saffronarora

9

what did everyone put for the substances in blood question

Reply 13

Original post by saffronarora

what did everyone put for the substances in blood question

glucose & amino acids

Reply 14

saffronarora

9

Original post by Milly.p2008

glucose & amino acids

I put plasma and red blood cells

Reply 15

Original post by saffronarora

I put plasma and red blood cells

I think those are components within the blood not substances... not too sure

Reply 16

fatimaaaa123

Original post by Milly.p2008

for the question where we had to draw the line graph, mine didn't start at 0. there was no line from 0-2 if you get what I mean - it started at 2 and then went down. is that fine?

same

Reply 17

gunpom

4

Original post by Milly.p2008

glucose & amino acids

was that question asking for the function of these substances for the tick?

Reply 18

fatimaaaa123

Original post by Milly.p2008

glucose & amino acids

i put WBCs and RBCs

Reply 19