2016 WJEC A2-Level Biology, BY5Watch
can you remember if you divided by the right number? I am a bit worried I've divided by the wrong one and I got the answer as you (apparently they where not rounding, but their exact answer was 1)
I did, what did you write? I wrote about broad beans dicotlyedon while maize is monocotyledons. Broad bean a seed and mazie a fruit. Endosperm absorbed in cotyledons in broad beans while endosperm surrounds the cotyledons in maize. Germination i talked about water/temp/oxygen and their roles and i gave the definition for germination. And i drawn a diagram of broad beans.Hopefully that will give me 10 marks
I put broad beans are dicotyledons, which are seed leaves and maize is monocotyledon as it has 1 cotyledon.
Then drew the structure of broad bean so testa, cotyledon, plumule and radicle. Then I said food store (not endosperm like you oops) is inside in broad beans but surrounds maize. Then I said seed is in a state of dormancy and can't germinate until favourable environmental conditions are reached.
Water, for transport and enzyme mobility
Correct temperature to reach an optimum temperature for that of the enzymes (didn't give one cause I'd never read it)
Oxygen for ATP production for growth and metabolism.
Then kinda reiterated/repeated that germination won't take place until these 3 mentioned environmental conditions are favourable
I originally got 0.5% but that's because you only divided one of the arrows (the one going from producer to herbivore) by the energy from the sunlight, you had to add all of the arrows together then divide by the sunlights energy (arrow from producer to consumer+ excretion+ respiration)
Pretty happy about this exam. Worst question was the first but the Meiosis question wasnt fair at all. The micrographs weren't a great quality. I put Metaphase II and Metaphase I? The next question asked you about how the chromosomes were aligned or something a long those lines, so i just assume it was askingg to compare both. I got 1% photosynthetic efficiency and then 800 Rh. For the questions below that about woodland. I put that woodland has a high abundance of cellulose which is not digested by herbivores so energy is lost. I honestly cant remember any other questions haha. Not saying im right.
Didn't get the got damn peat bog and I believe I made a mistake on the the P.E. question I think but apart from that in agreement did you have 94 for the ratios on the cross?