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Biology Paper 2 (DISCUSSION)

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There was a mistake in the o'level paper itself:

The question with the plant which eats water fleas; thee was a subquestion asking for wich chemicals and the uses fro those chemicals! it was a three marks question but the answer area was like:


Chemical: _____________________________
______________________________________
Use: __________________________________
______________________________________

It should have actually been:

Chemical: _____________________________
______________________________________
Use: __________________________________
______________________________________
Chemical: _____________________________
______________________________________
Use: __________________________________
______________________________________
Chemical: _____________________________
______________________________________
Use: __________________________________
______________________________________
 
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mimmi said:
There was a mistake in the o'level paper itself:

The question with the plant which eats water fleas; thee was a subquestion asking for wich chemicals and the uses fro those chemicals! it was a three marks question but the answer area was like:


Chemical: _____________________________
______________________________________
Use: __________________________________
______________________________________

It should have actually been:

Chemical: _____________________________
______________________________________
Use: __________________________________
______________________________________
Chemical: _____________________________
______________________________________
Use: __________________________________
______________________________________
Chemical: _____________________________
______________________________________
Use: __________________________________
______________________________________



no it's not compulsory
only one substance was askhed and only one use was askhed for 3 marks
 
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rose1700 said:
mimmi said:
There was a mistake in the o'level paper itself:

The question with the plant which eats water fleas; thee was a subquestion asking for wich chemicals and the uses fro those chemicals! it was a three marks question but the answer area was like:


Chemical: _____________________________
______________________________________
Use: __________________________________
______________________________________

It should have actually been:

Chemical: _____________________________
______________________________________
Use: __________________________________
______________________________________
Chemical: _____________________________
______________________________________
Use: __________________________________
______________________________________
Chemical: _____________________________
______________________________________
Use: __________________________________
______________________________________



no it's not compulsory
only one substance was askhed and only one use was askhed for 3 marks

it said chemicals not chemical
 
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sighs :( the 8 OR question on how the fetus obtain metabolic requirement, use it and how it loses metabolic waste. it was a ten mark question and i started off with the mum eating food then the food got disgested , absorbed and going to the blood stream. but guess i elaborated too much my space was full before i touched on the placenta part. and when i read back , i hadn't really written down anything that would carry marks but i just didn't have enough space to do any correction anymore. and it was the last five minute.

the HOW the germination requirement was obtained , i wrote WHAT THE REQUIREMENTS are used for instead ,i don't know why i did that. but again , i just didn't have enough space to do correction!!!!!! IT'S DRIVING ME NUTS TO REALISE THE MISTAKE BUT NOT BE ABLE TO CHANGE IT.

and i got all labellings wrong. no more hope for an A. I even missed out one question on drawing lines on the ribcage? i totally did not see that question at all. it just tells how , uncareful and unfocussed i was.

I AM SO SAD t__t
 
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Mimmi nice effort of compiling the question :)

but just wanted to point out for the Question 2
the first part which you missed was to write advantage of the insects and a dis-advantage of the insects

and for the second part , the question stated that
" why the percentage of insects starts to increase from the second year , untill the percentage reaches to the original percentage of insects "it was not at all mentioned that after the first year the insecticides were still added to the crops :)

for the Question 4

you missed the last part which stated that" suggest and explain would the offspring be genetically identical to the parent "
 
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G = bronchus
F = bronhciols
H = external intercoaster muscles

am i correct ?

and how were we suppose to draw the posiiton of chest cavity when breath in
please sombody tell
 

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Plumule? :S Roots are developed from the radicle and not plumule, even though, no roots were formed in the image.
Besides they didn't say 'by referring to the image'. :p ;)
 
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member said:
G = bronchus
F = bronhciols
H = external intercoaster muscles

am i correct ?

and how were we suppose to draw the posiiton of chest cavity when breath in
please sombody tell

F is bronchioles, G bronchus and H intercoastal muscles. Right. :p
Chest cavity increases since volume of air inside the lungs increases.
 
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Shiki Misaki said:
member said:
G = bronchus
F = bronhciols
H = external intercoaster muscles

am i correct ?

and how were we suppose to draw the posiiton of chest cavity when breath in
please sombody tell

F is bronchioles, G bronchus and H intercoastal muscles. Right. :p
Chest cavity increases since volume of air inside the lungs increases.


in paper

F was bronchioles, G was bronchus

but in the above picture the labels are opposite see it

and i wrote external intercoastal muscles would that be correct ?
 
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