OCR GCSE Biology A Paper 3 (Higher) - Tuesday, May 13, 2025 [Exam Chat]

i yapped for that one and talked about how carbon dioxide enters via the stoma and water enters root hair cell by osmosis and travels up the xylem in transpiration. Then that was the extent of my knowledge so i just said carbon dioxide and water is reacted to give oxygen and glucose. (glucose being stored as starch in plants) wbu?

i yapped for that one and talked about how carbon dioxide enters via the stoma and water enters root hair cell by osmosis and travels up the xylem in transpiration. Then that was the extent of my knowledge so i just said carbon dioxide and water is reacted to give oxygen and glucose. (glucose being stored as starch in plants) wbu?

I said that the energy from the sun is absorbed by the chlorphyll in the chlorplasts and this energy splits the water (H2O) into H ions and O molecules. The H ions then join the carbon dioxide to make glucose and then water is made as a waste product. Is that right??

see i thought this question was so obvious I got stumped LMFAO, since it was only 3 marks I talked about chloroplasts contain chlorophyll which absorb light energy which is used to convert carbon dioxide and water into glucose and oxygen for respiration (and glucose for food for the plant)

Also what about the improving accuracy question for auxin?

that was a question.... where was that bruh

It was like you had to join the boxes and it was either compare with other groups or take more measurements of parts of the root, i put take more measurements but im not sure its right.

omfg i DID NOT SEE THIS WHAT what was the question next to it?

i remember a question of reasrech for something to cure parkinsons but not anything to do with plant hormones?

I think it was like the an onion and they knew auxin was produced in 2 areas and they wanted to improve accuracy.

omfg i did not see this, I saw about a garlic root cell. do u remember any of the qutaiosn next to it?

TBH I don't remember what the question was about the root cell , tbh im just guessing the one i am talking about might have been about but i know it was about auxin and they had to improve the accuracy. what was the question about the root cell?

TBH I don't remember what the question was about the root cell , tbh im just guessing the one i am talking about might have been about but i know it was about auxin and they had to improve the accuracy. what was the question about the root cell?

there was no plant hormones in the paper im pretty sure.

it talked about staining and why it was important

I knew everything else but the question to describe photosynthesis what you would normally do in B1-2 lol but what did u say for the 6 marker

What was the solution X

I said it stained the sub cellular structures to make it more visible. Idk kinda a vague answer but I didn't know what else to put