WJEC A-Level Biology Unit 4 (1400U40-1) - 14 June 2024 [Exam Chat]

I think I labelled the prostate gland with the number which was pointing at the red circle that had the vas deferens connected to it. What did you put for the function of the prostate?

For the radicle before the plumule, I said that the radical grows geographically downwards to anchor the shoot, but apparently it was about nutrient but do you think I would still get marks for that?

Same I said something like it is positively geotrophic which will ensure the upward growth of the plumule lol, dk if that‘s even a thing. I didn’t even think to talk about nutrients and water🤦*♀️

I said secretes an alkaline fluid containing zinc ions which can neutralize acidic pH in the vagina

Oh ok I put something similar I just put I secretes zinc ions onto the sperm in the vas deferens

Yeah they’ll probably allow that. For the one in genetic engineering did you say that the cells on plate C must be tested to see if they activate any oncogenes before use in humans?

I think that would be a valid one. I said to ensure that it’s not pathogenic but idek if that’s right

No I think I remember reading that somewhere. I also am unsure about the plate A question I said that it was to compare the colonies with test B and to identify which ones have taken up the dna from the original or something

i said to identify which bacteria have taken up the recombinant and non recombinant dna. Honestly that whole question confused me so much

Yeah same I was really thrown off by the fact I had no clue what to put for the advantages of using the bacterial one and that rubbed off on the rest of the question 😭

Literally! I blanked out sm during that exam my brain just wasn’t working

Ikr, do u remember if u got prostrate gland as number 8? Cuz I’m scared I accidentally put the bladder

Ikr, do u remember if u got prostrate gland as number 8? Cuz I’m scared I accidentally put the bladder

Yeah they’ll probably allow that. For the one in genetic engineering did you say that the cells on plate C must be tested to see if they activate any oncogenes before use in humans?

Also for the question which had a punnett square, there was a question after asking for the number of cases of the disease in Wales. How many significant figures did you put it to? I put it to 2 as logically you can't have decimals places for something like this( I got 64)

I put two as well I had 64. For the bacteria question what did you have because I subtracted them but I think u were meant to multiply

What did everyone say for the question asking to explain why there weren't colonies in the ampicillin plate?

What did everyone say for the question asking to explain why there weren't colonies in the ampicillin plate?