Qualification > Sciences
How was Bio paper 1 :D
Chingoo:
I'm so happy, most of my answers match up =P
But for the ecology question, shouldn't it be the option '1 and 4'? Their niche is definitely different and their community/habitat is definitely same.
Also, under the light microscope, I think it would be the option with the nucleus and ER visible, because mitochondria are the largest of cytoplasmic organelles and lysosomes are the last most probable organelles to be seen under the microscope.
The cells were 3 and 5 in the plasmolysed state, in solution of 1 mol dm-3 sucrose but I don't remember the cell in the salt solution.
IGCSE nightmare:
--- Quote from: Chingoo on May 28, 2010, 08:00:28 am ---I'm so happy, most of my answers match up =P
But for the ecology question, shouldn't it be the option '1 and 4'? Their niche is definitely different and their community/habitat is definitely same.
Also, under the light microscope, I think it would be the option with the nucleus and ER visible, because mitochondria are the largest of cytoplasmic organelles and lysosomes are the last most probable organelles to be seen under the microscope.
The cells were 3 and 5 in the plasmolysed state, in solution of 1 mol dm-3 sucrose but I don't remember the cell in the salt solution.
--- End quote ---
Ya .. I got 3 and 5 in 1M sucrose and 2 & 4 in 0.1M salt soln
About the moderate exercise question, it should be decrease and decrease because X and Y were the variables for the volumes of air above the tidal volume so if it increased then X will decrease
Yes .. I got 1 & 4 only too for the ecology question
[Spy]:
X and Y is increase, increase
THEY DO NOT HAVE THE SAME HABITAT, IT CLEARLY SAYS ONE WAS IN A FOREST AND THE OTHER IN GRASSLAND. THEY LIVE IN THE SAME COMMUNITY AND THEY ARE THE SAME TROPHIC LEVEL.
for the cells question yeah it was D, and i think it was something like 2 and 4, 3 and 5.
but yeah D.
for the processes question, it was all of them.
for the magnification question, Mitochondria Can Be Seen Under The Microscope thats right, BUT in that choice you had ER too, and you cant see ER, so it was C, because even there are a number of differently sized mitochondrion's so yeah i dont know.
hesho21:
They said they live in the same area of forest and grassland , so I think by mentioning same "area" then they mean same habitat..
[Spy]:
how can one live in a grassland and the other in a forest and have the same habitat? :s
by same area they meant....trying to confuse you :)
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