>>> is blastocyst the same as embryonic stem cells?
<<<
Not the same. Google out both terms on Wikipedia.
http://www.answers.com/blastocyst
http://www.answers.com/embryonic%20stem%20cells
>>> why is it that the concentration of cAMP is
inversely proportional to the concentration of glucose (in
lac operon)? <<<
Glucose inhibits the enzyme adenyl cyclase (which converts ATP
to cAMP).
>>> Bio in JC is so hard to score well. It's just so
demanding when lots of details need to be included in order to get
1 mark. I just hope A level wouldn't be so demanding.
<<<
One reason for this, is that the new H2 syllabus emphasizes
heavily on molecular biology, and has brought down from University
level A LOT of content that the previous 'A' level syllabus
students (all batches before 2007) never learnt
during their JC years.
While it is arguably far sighted of the government (ie. MOE
& SEAB) to do this, but as far as the students are concerned,
slightly increased stress levels are inevitable.