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biology practical

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although all other papers i do are variant 3 e.g. 23/ 13/ i am apparently doing paper 35, so if anyone has any idea of what will come up in paper 35 itd be great, but itl probably simliiar to 33 and 32 if past papers are anythign to go by
 
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although all other papers i do are variant 3 e.g. 23/ 13/ i am apparently doing paper 35, so if anyone has any idea of what will come up in paper 35 itd be great, but itl probably simliiar to 33 and 32 if past papers are anythign to go by

well i heard that in paper-33 we have to do something with "YEAST".....i gess we have to count hte number of bubbles produced at different times? like after 30 seconds.....three times!
 
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Guys, try googling plan diagrams AND slides for yeast, artery, lungs, capillary and lymphocyte, macrophages, neutrophils. For plant cells google slides of potato, onion epidermis, VASCULAR BUNDLE and a general plant cell. This saves time and helps you identify the slides in the paper. For question 2, the contrast part, unless only differences asked, give only 1 similarity and the rest differences. Depending on what's given you could write about numbers, size, folds, location, thickness, shape, cilia, granules, vacuoles. Also be able to differentiate the stages of cell division if given.
For plan diagrams use microscope power x10.
For cell details use x40.
 
Messages
338
Reaction score
868
Points
93
Guys, try googling plan diagrams AND slides for yeast, artery, lungs, capillary and lymphocyte, macrophages, neutrophils. For plant cells google slides of potato, onion epidermis, VASCULAR BUNDLE and a general plant cell. This saves time and helps you identify the slides in the paper. For question 2, the contrast part, unless only differences asked, give only 1 similarity and the rest differences. Depending on what's given you could write about numbers, size, folds, location, thickness, shape, cilia, granules, vacuoles. Also be able to differentiate the stages of cell division if given.
For plan diagrams use microscope power x10.
For cell details use x40.
THANK YOU SO MUCH !!!!!
 
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any idea about bio practical 33.if you please tell me
HERE YO GO!I CAME TO KNOW ABOUT IT FROM MY FRIEND.

*Its like Yeast in gonna be there in both Question(1&2)--->(Serial dilution and Slide)

1) We are gonna have YEAST, to which you will add 1 drop Methyl-Blue, then check under Microscope, if cells are BLUE--->then the cells are DEAD, but if cells are YELLOW--->they are LIVING.

2)They may ask to state about:-
#MODIFICATION:-Use calorimeter(to find the end-point), Repeat more than once.
#RELIABLE RESULTS:-Repeat the experiment and calculate the Mean, Increase the range of Concentrations, Record the result in shorter intervals.
#ACCURACY:-Use Stopwatch, use Digital-Thermometer, use Calorimeter, use a temperature to control Water-bath.

3)Serial-Dilution of yeast okay...
 

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HERE YO GO!I CAME TO KNOW ABOUT IT FROM MY FRIEND.

*Its like Yeast in gonna be there in both Question(1&2)--->(Serial dilution and Slide)

1) We are gonna have YEAST, to which you will add 1 drop Methyl-Blue, then check under Microscope, if cells are BLUE--->then the cells are DEAD, but if cells are YELLOW--->they are LIVING.

2)They may ask to state about:-
#MODIFICATION:-Use calorimeter(to find the end-point), Repeat more than once.
#RELIABLE RESULTS:-Repeat the experiment and calculate the Mean, Increase the range of Concentrations, Record the result in shorter intervals.
#ACCURACY:-Use Stopwatch, use Digital-Thermometer, use Calorimeter, use a temperature to control Water-bath.

3)Serial-Dilution of yeast okay...

AND DO THESE PAPERS i will send a file
 
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if anyone knows the guess paper,kindly post it here!im sure a lot of students are waiting for it to be posted..thankshhh!:)

HERE YO GO!I CAME TO KNOW ABOUT IT FROM MY FRIEND.

*Its like Yeast in gonna be there in both Question(1&2)--->(Serial dilution and Slide)

1) We are gonna have YEAST, to which you will add 1 drop Methyl-Blue, then check under Microscope, if cells are BLUE--->then the cells are DEAD, but if cells are YELLOW--->they are LIVING.

2)They may ask to state about:-
#MODIFICATION:-Use calorimeter(to find the end-point), Repeat more than once.
#RELIABLE RESULTS:-Repeat the experiment and calculate the Mean, Increase the range of Concentrations, Record the result in shorter intervals.
#ACCURACY:-Use Stopwatch, use Digital-Thermometer, use Calorimeter, use a temperature to control Water-bath.

3)Serial-Dilution of yeast okay...
 
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