PKU Webquest

PKU Webquest

Microscopy Lab

In the microscopy lab, we looked at human hair and a dicot flower bud at 400x and 100x

Here are pictures of the human hair.

Cystic Fibrosis

Web Quest on Cystic Fibrosis.
https://docs.google.com/document/d/1E33cmQ9A1zRCGWqyxmZ5kdMhJ3vPoHYunpCmoCqdRfI/edit

Plant Cell Structure

Hennifer and I made a plant cell structure out of rice krispy treats. Our materials were:
Frosting
Sprinkles
Twizzlers
Skittles
Gummy worm eggs
Each one of these had a certain part they played as we made a plant cell out of them.

Diffusion And Osmosis Lab! :)

The purpose of this lab was to understand the importance of diffusion and osmosis in living organisms. During the process solutes and water are moving in and out of our cells. We also used a bag that people use in the diaylsis called dialysis tubing. Cells need to absorb molecules from the regions in which concentration of the molecule.

Materials needed for this lab was:
 A cup, distilled water, iodine, glucose indicator strips, dialysis tubing, string, scissors, and a small funnel.

Lab Questions:
1) Some of the glucose was left in the bag, yet some escaped, as for the iodine, some did enter the bag. Some proof for that would be when we tested the bag and the cup with glucose test strips. The first attempt in testing it resulted with no glucose being present, the next time we tested it glucose was there, meaning glucose diffused out of the bag. Black was also present meaning iodine was in the bag.
2)The quantitive evidence that would show that water diffused into the bag is the different levels of glucose the glucose test strips show, weigh the bag before and after.
3)If only starch and water were tested outside of the bag and iodine and glucose inside then the bag would be clear on the inside and brown on the outside.

Fluid Mosaic Model.

In this activity, we made a poster describing a plasma membrane.. In this poster it showed globular proteins, integral proteins, hydrophobic helixes, oligosaccharides, glyoclipids, phosphdipids, cholesterols, hydrophilic heads and hydrophobic tails.. We labeled each one of those on our poster, to define them each, globular proteins and integral proteins are both types of proteins found in membranes. A oligosaccharide is a carbohydrate whose molecules are composed of a relatively small number of monosaccharide units. A glyoclipid is a lipid with a carbohydrate attached.  Hydrophobic helixes are structures for proteins. Cholesterol is a crystalline substance which is found in tissues. Hydrophilic heads are polar therefore they are attracted to water and hydrophobic tails  are fatty acids and are not attracted to water.

Carbohydrate Lab!!

The link to my answers to Carbohydrate ID Lab Analysis
And my Lab write up. (:

https://docs.google.com/a/lajunta.k12.co.us/document/d/1N2IJ7ukC5iy2iooJO4vQ0P_x9EOFoUV6ImvRvrSpOXE/edit

Membrane Structure...

https://docs.google.com/a/lajunta.k12.co.us/document/d/1n5L6QKQeieI61s4r-pm30D0v5UOGBfBNFG6sJ7VjbZM/edit


Heres my notes and answers from the membrane structure trials..

Macromolecules Web Act. (:

https://docs.google.com/a/lajunta.k12.co.us/document/d/1C2IOiHSoHhTQdIMiIUdfEXjKks-Sj9c7gtZeGUCS0IY/edit





http://www.webpages.uidaho.edu/bionet/biol115/t2_basics_of_life/lesson2.htm

Acid in your stomach lab!

    Usually when you've eaten something that has your stomach turned upset down, you always want something to cure this. Most result to the oh so popular Tums. The hypothesis my group had was that both generic version and Tums would both work in the same way, and perform evenly. With the help of vinegar, the original and generic Tums, beakers, pH papers, a grinder, and coffee stirers we were able to reenact how it would be like in someones stomach.

What we did was pour vinegar into a beaker, with that we then used the pH paper to determine what level it was at(2). During that time we were also crushing up the generic tums so we could then put them in the beaker filled with vinegar. Two tablets was considered the lowest recommend dosage you should take. So with that being said we had four tablets. Two being the generic anti acid brand, and two being the original Tums. After putting the generic kind in the beaker, our result was that it fizzed, and bubbled up. It also had the pH level of 7. We did it again with the original brand and the result reoccurred from the previous experiment.

My Chart to the lab:

http://media.tumblr.com/tumblr_lmfz55I0aU1qef8qg.jpg

Waterrrrr Lab! :)

In this lab, we experimented with alcohol and water. We put water on wax paper, and it was very interesting that with a toothpick you can pretty much cut through it and separate it. We were determining what water was. As well as how it sticks together, or can be apart.  I learned that there are other properties of water other than being just the casual clear color, or the common feeling of it. Water is capable of sticking. Another thing that happened in the lab was that we tried to pour water down a string into another beaker. With that being said, it probably sounds unrealistic. Wrong. You just need to know exactly how to do it. What you did was wet the string to stick with the other water that was being poured down. And WA-LA, you have it.

Corn Lab

    This experiment was basically about how the scientific method can be used in several different ways. Its used over and over again, but in different ways, and in different orders as well. Its basically a mess, and scientist constantly have trial and error, which relates to the corn lab. It was to show you that you had to do a lot of different things in order to receive the result you wanted.  Around fifth grade is when I was exposed to the scientific method, there I was new to it all, and often confused. But as soon as I was able to understand it a little more as the years passed, I now see that it's not always going to be those steps exactly. This lab taught me that the scientific method is more of an investigation and you can process it in different steps.
       A little more in depth with this experiment, I would like to add that during the time of using the corn lab, you needed to know that on one side was a good growing corn, and the other was infested. You would put the corn to grow (which were both different corn, one was Bt 123, and BT 456) , along with the other variable being some type of bug, ECB (European Corn Bugs) . Either way, while testing it, you realize one crop of corn does not grow healthy. The virtual experiment showed me what anger, and the processes the scientists are open to.
    From the lab I learned that you can't always use the scientific method word for word. This is because scientist don't always follow it and they have to do it several times before things work out exactly how they would like them to.

                                                               

http://www.queeky.com/remote/slide/1000x1000/75831/source.jpg
http://undsci.berkeley.edu/article/0_0_0/howscienceworks_01
http://www.mhhe.com/biosci/genbio/virtual_labs/BL_01/BL_01.html