alex.m 11/21

This week we laerned a lot about respiration. First of all when we repirate we inhale oxygen(o2) and carbohydrates(C6H12O6). When we exhale we breath out comes carbon dioxide(CO2) and water(H2O). What we also learned is that both sides of the equation need to have equal amounts of atoms. Respirations happens all through your cells and lungs. This way all of the cells can carry the oxygen through the rest of your body. Red blood cells drop off nutrients and oxygen to the other cells so they can all respirtate. That we figured out since our lungs and cells pass the oxygen through the other cells, there is not as much oxygen gets exhaled that we inhale. The mitochandria turns the oxygen into carbon dioxide(CO2) when we exhale. After we finished our respiration(for now!) we started to discuss photosynthasis. Plants take in carbon and release oxygen, so we can inhale oxygen and they can can "inhale" carbon when we exhale.

homework of the two day break

This week we started to learn about paramecium cells. A paramecium cell is categorized as an animal cell in class but is really called a protozoa which means not a plant or an animal cell. Also the paramecium cell moves by the unicellular microbe using celia. These are hairlike structures that surround the organism and pulse rhythmically pushing it forward or in any direction. A paramecium is a cell that lives in stagnate water since it is a calm environment unlike running water which has a rough environment.

homework of the three day break

This week we started to learn about paramecium cells. A paramecium cell is categorized as an animal cell in class but is really called a protozoa which means not a plant or an animal cell. Also the paramecium cell moves by the unicellular microbe using celia. These are hairlike structures that surround the organism and pulse rhythmically pushing it forward or in any direction. A paramecium is a cell that lives in stagnate water since it is a calm environment unlike running water which has a rough environment. http://cmapspublic2.ihmc.us/rid=1228170101921_190956518_12114/paramecium.gif

homework of halloween weekend!!

This week on science we learned about different cells, like in your body, plants and animals. First was the plant cell. Plant cells have parts which help the plant do functions. For example the nucleous which helps controls the plant cells' actions. Leaning about the animal and body cells was also very interesting. Inside our cheeks, have cells. These cells re called cheek cells, while as a liver would have liver cells. Other parts if our body are made up of other cels as said before. Below are some photos of the labeled plant and animal cells. That was pretty much what we talked about for this week!

homework 10/23/09

This week in science we learned all about different bacteria, arrangements and reviwed our results of the grams test!

Bacteria

1. Bacillus - a rod shaped bacteria - a tic- tac (real life similarity)
2. Cocci - a circle shaped bacteria - a ball (real life similarity)
3. Spirillum - a spiral or stringy shaped bacteria - some string (real life similarity)

Arrangements

1. Diplo - a pair ~ diplococcus
2. Strepto - a chain ~ streptospirilum
3. Tetra - a group of four ~ tetracoccus
4. Staphylo - a clump ~ straphylococcus

For the grams test our main question was : What type of bacteria is this?

Once we were finished with our grams test, the results turned the color of red. According to our other research if the color is reddish than its gram negative which means taking up more counterstain. This makes the gram negative bacterias turn red or pink since it cannot contain the light violet color. On the other hand gram positive would turn a drak blue or a violet beacuse of its high amount of pepidoglycan in the cell wall. Lastly, when we were using the strioscope our group obesrved that the bacteria could possibly be a bacillus bacteria, but we will find out more information on Monday.

homework of 10/16

this week in science i learned about taking the procedure of the chicken from the community department of health project that we have been working on. Here it is:

1. open the chicken
2. wipe steral swab over the inside of the chicken
3. rub the swab on half of the petri dish
4. throw away the dirty swab and get a new one
5. rub new swab over the outside of the chicken and rub it on the other half of the perti dish onto the agar, throw the swab away
6. put the closed petri dish into the incubator each day come in and check on the petri dish at exactally 12'o clock to record our results of that day (including amount of colonies appear)

homework 10/9

This week in science we learned about our group bacteria finding in the petri dishes. To figure out how much bacteria there was in the petri dishes, we put some agar, or bacteria food, in the petri dishes. In my experiment we saw that inside of the toilet that there was a lot of bacteria along with the paper towel despencer handle. Also we started to learn about the microscopes and how they are going to help us with our Community Health Department project. Cant wiat until we start learning more about the microscopes and figure out more about or bathroom experiment.