nope. i am not sure. But i think the ones that didnt come are more likely to come..
Arrgh, it's gonna be a complete bit. Those 2 practicals are kinda hard to comprehend.
Anyone planning to revise mitosis + totipotency here?
Also in a Teachers Spec book, there are 2 methods given for observing mitosis. Do we have to learn both of them? They're fairly similar and frankly I love orcein ethanoic cause its a wicked name :P
In jan 2010 there's a question on drawing a flow chart. Does anyone have any idea on how to draw it?
Just basic drawing of flowchart from the account given. Examiners Report showed this guy who did it in a real shabby way by providing way too many points but achieved full four marks.
I'd write: observation of cure -> trial on small group of people -> trial on 163 patients -> finding out correct dosage and recording findings
Arrgh, it's gonna be a complete bit. Those 2 practicals are kinda hard to comprehend.
Anyone planning to revise mitosis + totipotency here?
Also in a Teachers Spec book, there are 2 methods given for observing mitosis. Do we have to learn both of them? They're fairly similar and frankly I love orcein ethanoic cause its a wicked name :P
do you have a link to the teachers spec book? (btw, you dont have to learn both of the methods for observing mitosis, but if you read both and get the idea it's enough)..
do you have a link to the teachers spec book? (btw, you dont have to learn both of the methods for observing mitosis, but if you read both and get the idea it's enough)..
2010 Jan: Question 1= Antimicrobial effect, Question 2= Modern drug testing compared to drug testing in william withering's time June: Q1= Enzymes (initial rate of reaction), Q2= conservation of species in zoos
2011 Jan: Q1= mineral deficiency, Q2= acidification of oceans June: Q1= plant fibres, Q2= leukemia disease (diseases in general)
2012 Jan: Q1= DCPIP (vitamin C concentration), Q2= research on stem cells
The one that hasn't appeared in any year, is the root tip stain experiment, where the stages of mitosis have to be described. I think mitosis is bound to come up in the Unit 3B tomorrow!
2010 Jan: Question 1= Antimicrobial effect, Question 2= Modern drug testing compared to drug testing in william withering's time June: Q1= Enzymes (initial rate of reaction), Q2= conservation of species in zoos
2011 Jan: Q1= mineral deficiency, Q2= acidification of oceans June: Q1= plant fibres, Q2= leukemia disease (diseases in general)
2012 Jan: Q1= DCPIP (vitamin C concentration), Q2= research on stem cells
The one that hasn't appeared in any year, is the root tip stain experiment, where the stages of mitosis have to be described. I think mitosis is bound to come up in the Unit 3B tomorrow!
if you notice all the first Questions have a graph. with the root tip squash test what graph will you draw?
2010 Jan: Question 1= Antimicrobial effect, Question 2= Modern drug testing compared to drug testing in william withering's time June: Q1= Enzymes (initial rate of reaction), Q2= conservation of species in zoos
2011 Jan: Q1= mineral deficiency, Q2= acidification of oceans June: Q1= plant fibres, Q2= leukemia disease (diseases in general)
2012 Jan: Q1= DCPIP (vitamin C concentration), Q2= research on stem cells
The one that hasn't appeared in any year, is the root tip stain experiment, where the stages of mitosis have to be described. I think mitosis is bound to come up in the Unit 3B tomorrow!
I've been thinking. What if, the 1st question is about totipotency. And then, the article is about mitosis??
OMG HAHAHA this is just crazy! loool. edexcel is mind F-ing us right now. lool. memorize totipotency and mitosis> goto the exam> open first page *inception drums*> mouth drops open. lol
if you notice all the first Questions have a graph. with the root tip squash test what graph will you draw?
my opinion; totiopotency may come tomorrow. if it's mtosis they may give pictures and ask which stage the cells are at.. Still we sould do more of "mitosis and totiopotency" than the other experiments. Each year one of the 9 AS experiments came . So now only 2 experiments are left.. we should know the two really well..