I personally think it was a terrible paper despite putting in hours of revision and doing past papers the questions were terrible especially the enzyme and Lilly bs
what did everyone write about the glycogen structure and function and the question about tar
for glycogen: 1-4 linked glucose chains shorter than starch, it's very compact which makes it good for storage as granules in the liver lots of side branches, which allow enzymes that break down the molecule easy access and glucose will be released more quickly Advantage to animals because animals are very active so use more energy than other organisms such as plants which have no movement. Also, quick glucose release is an advantage because it allows for sudden strenuous activity such as running away from predators etc. Not sure if it's right though, I'm really doubting myself with this exam.
for glycogen: 1-4 linked glucose chains shorter than starch, it's very compact which makes it good for storage as granules in the liver lots of side branches, which allow enzymes that break down the molecule easy access and glucose will be released more quickly Advantage to animals because animals are very active so use more energy than other organisms such as plants which have no movement. Also, quick glucose release is an advantage because it allows for sudden strenuous activity such as running away from predators etc. Not sure if it's right though, I'm really doubting myself with this exam.
What were the advantages of the 3 domain system over the 5 Kingdom system? I had no clue what to put for that :/. Definitely a harder paper than last year tho, wish I hadn't messed up then now more than ever ðŸ˜ðŸ˜
Did it ask for advantages or reasons? because I think I wrote reasons
I thought it was good if you knew all your stuff and had done past papers. A few tricky stuff here and there but overall it was good. Should get above 80!
I put biodiversity in a habitat, and then biodiversity on a world scale. Not sure tbh
Yeah I put a habitat and then an ecosystem, one of my friends put locally and worldwide, and another put species richness and evenness, everyone I've spoken to has put something different 😂
That question was hard. I was writing everything about organic and inorganic cofactors and how they help to increase the rate of enzyme reaction... That question was so hard. Also the question were you had to write how you would carry out the investigation for the water lily plant was really difficult my hopes of getting an A in this paper are gone
What does everyone think grade boundaries will be? I dont think they'll change much as they havent done so in the previous years
Last two years 68 has been an A... I don't think they'll change much unless everyone has done terribly. I also think they'll be inclined to keep them high as we are competing with this years new AS syllabus which is meant to be harder..