Chunkee+Chipmunkeez

=//**Chunkee Chipmunkee-z/The Chipmunk Inner Circle **//=

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Ciera B:D /the acorn keeper Ashley W ") /chipmunk whisper-er Lauren W :P/the big nut Alexis Y:) /little chippy

=Cells!=

Prokaryotes
Alexis and Ashley Lauren and Ciera

This is a cell that has no nucleus.

Eukaryote
Lauren and Ciera Ashley and Alexis has a nucleus

Amphiuma Liver Section
Has a nucleus

Bacteria
image by flickr user: biology flashcards Has no nucleus

Compare and Contrast
Compare- both of the cells have DNA of the mesosomes and the cristae are used for the same thing they both are in a aerobic cellular respiration.

Contrast- they are different because eukaryotic cells have a nucleus that has a double membrane, it has histones, and can have several cells. the root word means nucleus. prokayotic cells have no nucleus, the contents is closer than in an eukaryotic cell, its circular and has no ends, and their evolution is what made more complex then the eukaryotic. The root word is before. =Onion Cell:= unsalted Salted

Onion Cell Questions:
Describe the shape and arrangement of the onion cell. The shape of an onion cell is a rectangle or square. An onion cell is a plant cell so it contains chlorplast and can create its own food. When we added the salt solution the cells shriveled up. This is because salt takes the moisture from food. The purpose of adding the iodine was so the cells and their parts were more visible to our eyes without it it would be hard to see where one cell stopped and another began. A question we still have is why do you cry when you peel or chop an onion? When onions are cut the cells give off enzymes which creates a gas and goes into your eyes and makes them water. http://en.wikipedia.org/wiki/Onion#Eye_irritation When a cell is exposed to hypertonic soultions osmosis occurs. Water diffuses out of the cell and the cell eventually shrivels up. When cells are in a hypotonic solution osmosis also occurs. These onion cells are about 75 microns long =Cheek Cell:=

Cheek Cells Questions:
Cieras cheek cell is in the shape of a triangle. The cheek cell was more rounded than the other two cells. The cheek cell is an animal cell while the elodea cell and the onion cell is a plant cell. Why are all cheek cells constantly replaced? Cheek cells are constantly replaced because they become worn off when you talk, eat and brush your teeth. http://answers.yahoo.com/question/index?qid=20091004115108AA5J5hT Cieras cheek cells are about 125 microns long. =Elodea Cell:=

Elodea Cell Questions:
The elodea cell was a long rectangle shape while the onion cell was in the shape of oval. Where is an elodea found? Elodea plants are found underwater in lakes. http://en.wikipedia.org/wiki/Elodea These eldoea cells are about 47 microns long. = = =Cell Inquiry=

Banana Cell
To do this lab we first peeled a banana to go to the inter section and cut the banana thin enough to be able to see through it using a microscope. Then once we got a slice thin enough we put it on a slide as we had done with the onion, and cheek cell and put methylene-blue on it. After we put it on the microscope starting at low power to find the general area of the cells. Next we moved the microscope up to medium power so that we could see the cells better. Once we got it adjusted we took a picture using the Moticam Images Plus application on our computers. Next we renamed the picture bananacell.ciera.jpg. Then we posted it on the wiki page and labeled it banana cell. Through this experiment we discovered bananas have cells. We know they have cells because we saw nucleus's and other cell parts and we know that the Cell Theory states that cells are the basic unit of life. Banana's were once a living plant so they must be made of cells in order to be living.

The estimate size of these cells was 15 microns.

Apple Cell


To do the lab of the apple cell we first cut a slice of the apple thin enough that it would be apple to project through the microscope. Next, we got a film and put the apple slice on then put methylene-blue on it. The methylene-blue is familiar to us all because we used it for the onion, cheek, and apple cell lab. Then we put the slde on the microscope and started at lower power to look for a cell. Once we found one we had focused the microscope and turned the power up to high power. Afterwards, we hooked the moticam up to the microscope so take a photo on the Moticam Images Plus application on our computers and uploaded it to the wiki page labeling it apple cell.

Its about 39.5 mocrons

=Phenolphalein=

Cut In Half Picture:


=Cell Wall and Cell Membrane= =Chromoplast and Chloroplast=



=Cell Transport Lab=

Osmosis
Osmosis is the movement of water from a high concentration to a low concentration. When an object with a permeable membrane is placed in a beaker of water, the water concentration in the beaker is high so the water moves into the object which has a low concentration of water until the water concentration in the beaker is equal to that in the object.

For our experiment we sliced two potatoes and weighed them. Next we placed one potato in a 400mL beaker filled with 300mL of salt water and the other in a 400 mL beaker filled with fresh water. We left the potatoes in for 15 minutes then weighed them again. Our results were the potato in salt water lost weight and the potato in the fresh water gained weight. This is because the salt in the salt water drained all the moisture out of the potato while the potato in the fresh water gained weight because it absorbed the water. Salte Water Before: 103 grams Salte Water After: 97.6 grams Fresh Water Before: 90.2 Fresh Water After: 94.7

Diffusion
Diffusion is the movement of any substance, other than water, from a high concentration to a low concentration. An example of diffusion is when perfume is sprayed. At first the fragrance is only in the area where it was sprayed but eventually the fragrance will move from the high concentration, where it was sprayed, to a low concentration, the rest of the room.

For this experiment we put 10 potato chunks into a 400mL beaker filled with 200mL of water and 15 drops of iodine. We let them sit in the iodine for 15 minutes then added 20 more drops of iodine. We left the chunks in for 16 minutes and 25 seconds longer. When we took them out we discovered the iodine had diffused into the potatoes and turned them black. Before: After: > 1. Move across a concentration gradient > 2. Move to an area where there is lower concentration > 3. Moves ions > **Differences** > 1. Active moves around they cell membrane while the Passive moves along all of the biological membranes. > 2. Active has to have energy and the cell has to widen to come into play while passive doesn’t need it > 3. Active uses ATP energy while passive doesn’t use any We still have the question of do different materials take longer to diffuse into a cell? During our experiment we had the potatoes in the beakers for fifteen minutes. Then we took them out and measured how far the liquid went into the potato. If we would have left the substance in for a longer or shorter amount of time the liquid would have gone farther or shorter a distance.
 * 1) Compare and contrast diffusion and osmosis. [[image:osmosis_vs_diffusion.png width="534" height="313"]]
 * 2) Osmosis and diffusion are considered passive processes because passive processes are when substances move across the cell membrane and osmosis is when water moves from a higher concentration to a lower concentration. When water moves across the cell membrane (passive process) and it moves into the cell (osmosis) osmosis becomes a passive process. The same goes for diffusion which is the movement of any substance other than water from a higher concentration to a lower one.
 * 3) ** Compare and contrast passive cell transport with active cell transport. You are responsible for discussing at least 3 similarities and/or differences. Similarities**
 * 1) What question do you still have about cell transport? Do research or design and run an experiment to gather data to answer your question. Write a paragraph or make an outline of what you did and what you discovered. Remember to cite your sources.

=Respiration Venn Diagram= =Yease Analysis Pictures= Begining Middle Final

=DNA Forensics= Lane 1: Suspect X- DNA 1 Lane 2: Suspect X-DNA 2 Lane 3: Evidence- DNA 1 Lane 4: Evidence- DNA 2 Lane 5: Suspect 2- DNA 1 Lane 6: Suspect 2- DNA 2

Suspect 2 is guilty because their DNA matched up to the evidence.