Biology 33, how was it?

[Idolfanatic95]

About that graph with PH, leaves and bark, What exactly were we supposed to make? Ph against Leaves?

 

[xtremeforums]

About that graph with PH, leaves and bark, What exactly were we supposed to make? Ph against Leaves?

On the x axis, pH... And on the y axis, Activity of enzyme...
and we were suppose to make two line graphs, and label each one clearly, eg. leaves or bark.

Did anyone else do this?

 

[Idolfanatic95]

On the x axis, pH... And on the y axis, Activity of enzyme...
and we were suppose to make two line graphs, and label each one clearly, eg. leaves or bark.

Did anyone else do this?

Damn. I just made leaves against ph

 

[xtremeforums]

Damn. I just made leaves against ph

Lets just hope for a low curve....

What about the calibration question? what did u get?

 

[Idolfanatic95]

Lets just hope for a low curve....

What about the calibration question? what did u get?

Im hoping it below 30.
The callibration thing honestly i dont remember at all. We kinda did it in the last minutes.

 

[Idolfanatic95]

Im hoping it below 30.
The callibration thing honestly i dont remember at all. We kinda did it in the last minutes.

it's**

 

[♥Яαηõõşḧ♥]

On the x axis, pH... And on the y axis, Activity of enzyme...
and we were suppose to make two line graphs, and label each one clearly, eg. leaves or bark.

Did anyone else do this?

yup, exactly =)

 

[xtremeforums]

yup, exactly =)

what did u get for the calibration?

 

[♥Яαηõõşḧ♥]

Lets just hope for a low curve....

What about the calibration question? what did u get?

its usually below 30, im guessing for this exam it'll be from 26-28 for an A
for the total length of X-Z i got 141 micrometers
i dnt remeber the calibration

 

[xtremeforums]

its usually below 30, im guessing for this exam it'll be from 26-28 for an A
for the total length of X-Z i got 141 micrometers
i dnt remeber the calibration

wow... i dont remember my total length, but it was a small two digit number! maybe around 10 micrometers...

 

[♥Яαηõõşḧ♥]

wow... i dont remember my total length, but it was a small two digit number! maybe around 10 micrometers...

i think everyone screwed up that question... we all got different answers. but anyway the rest of the exam was ok so it doesnt rlly mater i guess
did u draw a vascular bundle in ur plan diagram ???

 

[xtremeforums]

i think everyone screwed up that question... we all got different answers. but anyway the rest of the exam was ok so it doesnt rlly mater i guess
did u draw a vascular bundle in ur plan diagram ???

yah i drew the vascular bundle, it wasnt clear in the microscope though...
My class got similar answers to mine, for the calibration.

 

[Irfan1995]

1) You're supposed to draw a graph of activity (y-axis) vs. pH(x-axis). You're also supposed to draw two lines and you must have a way of identifying which line represents which sample (and of course, you must show a key or label). What I did was plot the leaf points with crosses and the bark points with a point in a circle (with a key on the right).
2) Every unit on the eyepiece graticule was 2.5 micrometers. I can't remember the lengths of X, Y, nor Z. Sorry!

 

[xtremeforums]

1) You're supposed to draw a graph of activity (y-axis) vs. leaves (x-axis). You're also supposed to draw two lines and you must have a way of identifying which line represents which sample (and of course, you must show a key or label). What I did was plot the leaf points with crosses and the bark points with a point in a circle (with a key on the right).
2) Every unit on the eyepiece graticule was 2.5 micrometers. I can't remember the lengths of X, Y, nor Z. Sorry!

On the x axis, we had to plot the pH not the leaves...

and i got 2.4 micrometers for the calibration.

 

[♥Яαηõõşḧ♥]

yah i drew the vascular bundle, it wasnt clear in the microscope though...
My class got similar answers to mine, for the calibration.

yeah it wasnt clear on my slide either,, but my friend said it was really clear on hers.. and i drew it too
what did u get for the calibration??

 

[♥Яαηõõşḧ♥]

On the x axis, we had to plot the pH not the leaves...

and i got 2.4 micrometers for the calibration.

yeah the calibration was smth like that...

 

[♥Яαηõõşḧ♥]

what did u write for the differences between the two specimens ?????

 

[Irfan1995]

Calibration:
Every unit on the stage micrometer was 0.01 mm
The stage micrometer was 4 units long on the eyepiece graticule
So you're supposed to divide 0.1 mm by 4 to get 0.0025 mm
Also, you're supposed to convert it to a more suitable unit by multiplying 0.0025 mm by 1000 to get 2.5 micrometres.

 

[xtremeforums]

Calibration:
Every unit on the stage micrometer was 0.01 mm
The stage micrometer was 4 units long on the eyepiece graticule
So you're supposed to divide 0.1 mm by 4 to get 0.0025 mm
Also, you're supposed to convert it to a more suitable unit by multiplying 0.0025 mm by 1000 to get 2.5 micrometres.

The stage micrometer was 4.2 units long...

That how i got 2.4 micrometers.

 

[Irfan1995]

You could have written millions of differences:
1) Fig 2.4 has a larger/wider pith
2) Fig 2.4 has a smaller cortex
3) Fig 2.4 has more collenchyma than parenchyma cells (and K1 had less collenchyma than parenchyma)
4) Vascular bundle was spread as a ring in K1, but in fig 2.4, it was in bundles and bundles were spread as rings.
5) Outer layer/bark/epithelial cells are clearly visible in fig 2.4 but not in K1

There are several others.