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BIOLOGY ATP????

manicooljay

manicooljay

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CAN ANYONE TELL ME IF EXAMINER ASKS TO MAKE LARGE DRAWING OF THE DIAGRAM GIVEN IMAGE....WHAT RATIO SHOULD I TAKE I MEAN WHAT SHOULD BE ITS LENGTH??????????????????????????????????????? PLZ HELP ME 2MORROWS THE PAPER!!!!!!!
 
daredevil

daredevil

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according to the marking schemes your drawing should be at least more than 6 cm in length. 80% means that it should be around 3/4 of the space you are given on the paper. don't panic.
if u are having doubts about ur bio atp then here:

HEyy guys i had some really good help from my teacher today.
first of all the chapters that are most likely to come are nutrition and transport in plants, nutrition in animals, nutrition, ecology/ecosystem, germination, genetics, micro-organisms, coordination and response (with locomotion and all).
other than that what i reccomend is that u go through all the INVERSTIGATIONS in the book and answer the observation questions. if u can't take help from someone... i did. those investigations cover prety much all of it. also go through the investifgations from the mary jones book. it has them in a bit better detail. and leaves little to be asked.
magnification is important. take care of when to include the multiplication factor and REMEMBER THER FORMULA.
Labelling is important especially for bones (humerus, scapula, radius and ulna), mucles (biceps and triceps), reflex action, germination (seed labelling of embryo, mesocarp, pericarp, epicarp, cotyledon, radicle, plumule, testa), skin, look at the other diagrams if u find somethin important.


exam tips are that
- first of all do all questions except graphs. leave graph for the end bcuz it takes time.
- determine from which topic the question has come.
-in graph questions determine which value should come on x axis and which one on y axis. (the linearly changing or known value comes on x axis mostly time and and unknown or chenging not on regular intervals comes on y axis). label axis (time; distance; etc) and also give units on the axes (/hours; /metres; etc.) draw best fit curve/straight line (as appropriate).
-what can be done to make the experiment more reliable:-
* repeat experiment to take average for accurate results
* take measurement at equal time intervals
* take the same amount of sample for each experiment
* keep other environmental factors constant
- designing experiment -- > these experiments mostly come from book so its better to get an understanding of the working of the experiments in the book.
- when boiling water mostly it is for removing O2. for example in the experimnet to test for the presense of stomata the water is first heated so as to remove the dissolved O2 from water. thus the bubbles when seen are only from the gaseous excchange through stomata.
-KOH --> dissolves CO2
NaHCO3 -- > provides CO2
- hydrogen bicarbonate indicator turns red in neutral; yellow in acidic and purple in alkaline solutions. so when CO2 is present in water the indicator turns yellow (carbonis acid)
- leaf is put in ethanol to remove chlorophyll (this makes the ethanol green and the leaf white)
- after heating with ethanol (in a water bath) a leaf is put in distilled water before testing to remove ethanol traces from it.
 
manicooljay

manicooljay

Messages
88
Reaction score
23
Points
18
daredevil said:
according to the marking schemes your drawing should be at least more than 6 cm in length. 80% means that it should be around 3/4 of the space you are given on the paper. don't panic.
if u are having doubts about ur bio atp then here:

HEyy guys i had some really good help from my teacher today.
first of all the chapters that are most likely to come are nutrition and transport in plants, nutrition in animals, nutrition, ecology/ecosystem, germination, genetics, micro-organisms, coordination and response (with locomotion and all).
other than that what i reccomend is that u go through all the INVERSTIGATIONS in the book and answer the observation questions. if u can't take help from someone... i did. those investigations cover prety much all of it. also go through the investifgations from the mary jones book. it has them in a bit better detail. and leaves little to be asked.
magnification is important. take care of when to include the multiplication factor and REMEMBER THER FORMULA.
Labelling is important especially for bones (humerus, scapula, radius and ulna), mucles (biceps and triceps), reflex action, germination (seed labelling of embryo, mesocarp, pericarp, epicarp, cotyledon, radicle, plumule, testa), skin, look at the other diagrams if u find somethin important.


exam tips are that
- first of all do all questions except graphs. leave graph for the end bcuz it takes time.
- determine from which topic the question has come.
-in graph questions determine which value should come on x axis and which one on y axis. (the linearly changing or known value comes on x axis mostly time and and unknown or chenging not on regular intervals comes on y axis). label axis (time; distance; etc) and also give units on the axes (/hours; /metres; etc.) draw best fit curve/straight line (as appropriate).
-what can be done to make the experiment more reliable:-
* repeat experiment to take average for accurate results
* take measurement at equal time intervals
* take the same amount of sample for each experiment
* keep other environmental factors constant
- designing experiment -- > these experiments mostly come from book so its better to get an understanding of the working of the experiments in the book.
- when boiling water mostly it is for removing O2. for example in the experimnet to test for the presense of stomata the water is first heated so as to remove the dissolved O2 from water. thus the bubbles when seen are only from the gaseous excchange through stomata.
-KOH --> dissolves CO2
NaHCO3 -- > provides CO2
- hydrogen bicarbonate indicator turns red in neutral; yellow in acidic and purple in alkaline solutions. so when CO2 is present in water the indicator turns yellow (carbonis acid)
- leaf is put in ethanol to remove chlorophyll (this makes the ethanol green and the leaf white)
- after heating with ethanol (in a water bath) a leaf is put in distilled water before testing to remove ethanol traces from it.
Click to expand...
YOU ARE THE BEST THANKS AND ALLAH APP KO KHUSH RAKHAY AND LOVE U ,,,, <3 <3 <3
 
daredevil

daredevil

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help me too guys....
October/November 2011 paper 62 biology atp ...... question 1) part b)i)


Helpppp needed urgenttt!!!
 
Spidey21

Spidey21

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daredevil said:
help me too guys....
October/November 2011 paper 62 biology atp ...... question 1) part b)i)


Helpppp needed urgenttt!!!
Click to expand...

well as the ms states

To increase the friction so that the liver cells could open up and give off the enzyme much more ezily..:)
 
rabiafarooq101

rabiafarooq101

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daredevil said:
according to the marking schemes your drawing should be at least more than 6 cm in length. 80% means that it should be around 3/4 of the space you are given on the paper. don't panic.
if u are having doubts about ur bio atp then here:

HEyy guys i had some really good help from my teacher today.
first of all the chapters that are most likely to come are nutrition and transport in plants, nutrition in animals, nutrition, ecology/ecosystem, germination, genetics, micro-organisms, coordination and response (with locomotion and all).
other than that what i reccomend is that u go through all the INVERSTIGATIONS in the book and answer the observation questions. if u can't take help from someone... i did. those investigations cover prety much all of it. also go through the investifgations from the mary jones book. it has them in a bit better detail. and leaves little to be asked.
magnification is important. take care of when to include the multiplication factor and REMEMBER THER FORMULA.
Labelling is important especially for bones (humerus, scapula, radius and ulna), mucles (biceps and triceps), reflex action, germination (seed labelling of embryo, mesocarp, pericarp, epicarp, cotyledon, radicle, plumule, testa), skin, look at the other diagrams if u find somethin important.


exam tips are that
- first of all do all questions except graphs. leave graph for the end bcuz it takes time.
- determine from which topic the question has come.
-in graph questions determine which value should come on x axis and which one on y axis. (the linearly changing or known value comes on x axis mostly time and and unknown or chenging not on regular intervals comes on y axis). label axis (time; distance; etc) and also give units on the axes (/hours; /metres; etc.) draw best fit curve/straight line (as appropriate).
-what can be done to make the experiment more reliable:-
* repeat experiment to take average for accurate results
* take measurement at equal time intervals
* take the same amount of sample for each experiment
* keep other environmental factors constant
- designing experiment -- > these experiments mostly come from book so its better to get an understanding of the working of the experiments in the book.
- when boiling water mostly it is for removing O2. for example in the experimnet to test for the presense of stomata the water is first heated so as to remove the dissolved O2 from water. thus the bubbles when seen are only from the gaseous excchange through stomata.
-KOH --> dissolves CO2
NaHCO3 -- > provides CO2
- hydrogen bicarbonate indicator turns red in neutral; yellow in acidic and purple in alkaline solutions. so when CO2 is present in water the indicator turns yellow (carbonis acid)
- leaf is put in ethanol to remove chlorophyll (this makes the ethanol green and the leaf white)
- after heating with ethanol (in a water bath) a leaf is put in distilled water before testing to remove ethanol traces from it.
Click to expand...
thankssssssssss u will get A*
 
daredevil

daredevil

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Spidey21 said:
well as the ms states

To increase the friction so that the liver cells could open up and give off the enzyme much more ezily..:)
Click to expand...

hmmm.... i was thinking that sand will prevent clumping and thus help in finer grinding. wat do u think of that? will that be right. bcuz if such a general question comes (God forbid :p ) then most people will have different answers according to their own understandings. ryt o_O
 
Spidey21

Spidey21

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daredevil said:
hmmm.... i was thinking that sand will prevent clumping and thus help in finer grinding. wat do u think of that? will that be right. bcuz if such a general question comes (God forbid :p ) then most people will have different answers according to their own understandings. ryt o_O
Click to expand...

who am i to say any such thing..i just said in a different manner what the ms (marking scheme)stated...;)
 
manicooljay

manicooljay

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daredevil said:
hmmm.... i was thinking that sand will prevent clumping and thus help in finer grinding. wat do u think of that? will that be right. bcuz if such a general question comes (God forbid :p ) then most people will have different answers according to their own understandings. ryt o_O
Click to expand...
yes u r right coz sand produces friction and used for grinding...
 
Spidey21

Spidey21

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daredevil said:
Ahhh distinctions *dreams dreams* but i hope this dream comes true *fingers crossed* and heeyyy there's always a first time isn't there ? ;)
Click to expand...

thats true but you see..there can be only ONE distinction...you did not get the joke did you :cool:...however...what did you mean by the answer ou gave?? :eek:
 
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