Hi all I'm currently a Year 4 secondary student, going into JC
next year through IP :)
But I'm stuck between a decision for PCME or BCME, because my
grades for P and B are almost the same, 87% and 84%
respectively.
I have more interest in B, but find it harder to study for B
because of the excessive mugging.
I have less interest in P, have no intention of picking up
Engineering in the future, but find it easier to score in P.
Please tell me how I should go about picking my combi D:
wow, a person with a similar grade as my biology, if you have
interest , go for bio, but be prepared for mugging stuff
Let me show you the diff bet O level and A level
The following are excerpts from my own notes
A level
(V) Mitochondrion
The
structure of a mitochondrion (plural: mitochondria) is as
follows:
1.
Mitochondrion is
rod-shaped.
2. <!--[endif]-->Double
membrane bound: Outer membrane separated from inner membrane by
intermembrane space.
3. <!--[endif]-->Both
outer membrane and inner membrane is continuously joined, and is
selectively permeable. However, the inner membrane is more
selectively than the outer.
4. <!--[endif]-->Inner
membrane is extensively folded to form a large number of infolding
called cristae.
5.Matrix contains circular DNA
(plasmids) and 70S ribosomes. Explanation: With the
presence of DNA, the mitochondrion can synthesize some proteins and
enzymes it need independent from the nucleus.
Note: For more
details of mitochondrion, refer to respiration notes.
Function:
Mitochondrion is responsible for cellular respiration. A series
of biochemical reaction take place in mitochondrion (glycolysis,
citric acid cycle and oxidative phosphorylation), resulting in ATP
formation. (In exam – just quoting of oxidative phosphorylation is
adequate)
Additional Note: In view of
evolution, mitochondria is viewed as a prokaryote being ingested by
a larger prokaryote but not destroyed by lysosomes and being
integrated as an integral member in the common cell in eukaryotes
(animals). This is the case of endosymbiosis.
O level
Mitochondria is a sausage like organelle which contains
enzyme for cellular respiration
So with this glimpse, i hope you can decide more, but bio isn't
that hard if you have interest