Hello Fellow Students,

I will be doing a post for the Enzyme Lab done on Tuesday, as well as the cells lab that was completed on Thursday.

Inn all the tables where we recorded our information, we had to state THE AMOUNT OF

TUESDAY

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SUBSTANCE USED (ex. 3 ml catalyst, and 1 ml H2o2) and THE AMOUNT OF BUBBLES PRODUCED (IN MM).

In the Enzyme Lab there were 4 separate sets of experiments.

Experiment 1.

In Experiment 1, We did a set of control tests.

In tube 1, we mixed catalyst and H2O2

In tube 2, we mixed H2O and H2O2

In tube 3, we mixed a Sucrose Solution, and Catalyst

**** After each combination, we measured the bubble height, and listed amounts used.

Experiment 2.

In experiment 2, we checked/recorded the effects of temperature of the enzyme

In tube 1, we brought the catalyst to a temperature of 3.C and added H2O2

In tube 2, we brought the catalyst to a temperature of 7.C and added H2O2

In tube 3, we brought the catalyst to 100.C and added H2O2

**** After each combination, we measured the bubble height, and listed amounts used.

Experiment 3.

In Experiment 3, we observed the amount of enzyme concentrations, in different settings.

In tube 1, we added 1 cm Catalyst, 4 cm H2O2

In tube 2, we added 2 cm Catalyst and 4 cm H2O2

In tube 3, we added 3 cm Catalyst, and 4 cm H2O2

**** After each combination, we measured the bubble height, and listed amounts used.

Experiment 4.

In Experiment 4, we observed the effect of pH on Catalase activity

In tube 1, we added HCl (pH3), and H2O2

In tube 2, we added Distilled water (H2O)(pH7), and H2O2

In tube 3, we added NaHO (pH11) and H2O2

**** After each combination, we measured the bubble height, and listed amounts used.

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After we finished recording our results from the separate experiments, we completed the post lab/ review questions.

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WEDNESDAY

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Cell Lab

In the cells lab we loked at a variety of cells from different organisms. We looked at pre-made bacteria slides, wet mount slides of plants that we made ourselves, and even our own cheek cells.

Part 1

We looked at the differences between Prokaryotic cells, and Eukaryotic cells.

To compare, we looked at Streptococcus Lac tis, and an Onion cell

(Streptococcus Lac tis) (Onion Cell(s))

Part 2

Plant cells vs Animal Cells

For this, we compared Elodea cells (see weed/alge plant) to Our own cheek cells (yes from our own mouths)

Elodea Plant Cell(s)

Cheek Cell(s)

Part 3

In part 3, we looked at 4 other types of plant and animal cells

1. Frog Blood (animal cell)

2. Potato w/ Iodine (plant cell)

3. Tomato Skin Cell (fruit/plant cell)

4. Spirogyra Cell (algae /plant cell)

***Note these are not my own cell pictures, but we looked at them under the same power and are similar to the ones we saw in class***

HOMEWORK

Complete these labs, and post-lab questions

Thank you for reading, I hope that this has been an informative and helpful post

Sincerely,

Siddharth Rajan

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