Monday, November 15, 2010

Microscope Lab

Day 1!
For the past week we have been working with the microscopes.  I have worked with microscopes before but usually just cells that the teacher had for us.  This time we were able to see the bacteria in the pond water and we were able to come up with other things on our own to work with.  First we tried some of our hair which the microscope showed the real color of our hair.  Then my group tried the pond water which we saw bacteria moving around and then we let it sit there and it dried out and we couldn't see anything anymore.  After the pond water we just messed around and started trying random stuff.  Like the leaf root which we could see the lines that took the water up the leaf.

Day 2!
The next day we were trying actual cells so we took some from our cheek.  All we saw was some black spots everywhere it actually looked pretty GROSS!!!  After that we messed around with our fingernails and it din't show much but the dirt under them :)...  After we did the live cells we tried the onion and we could see the little circles that looked like live cells from our cheek.

I found a picture on the internet that looked like what our cheek cells were like and i found this one.  It is almost identical to the our cheek cells but ours were a darker.

I went and found another picture of a picture that looked similar to the onion we saw.  This is pretty much what the onion looked like that we had.



Friday, November 12, 2010

Cystic Fibrosis

Cystic Fibrosis is a disease that form because of a mutated gene.  Usually the lining cells pass through the airway and keep the mucus moist, well when you have this disease it does the opposite.  It blocks the channels in the airway and dries out the mucus.  This disease is usually inherited but you can catch the disease to where you can have  longer life span.  There are some treatments and its usually antibiotics or therapy.

SYMPTOMS

                very salty-tasting skin;
                persistent coughing, at times with phlegm;
                frequent lung infections;
                wheezing or shortness of breath;
                poor growth/weight gain in spite of a good appetite; and
                     frequent greasy, bulky stools or difficulty in bowel movements.
This disease also causes your body to form a mucus in your lungs.


Tuesday, November 2, 2010

membrane poster

By:  Vanessa, Desi, Brianna, Ashley, and David.


This poster is of the structure of the membrane.  In this project I learned the names of the parts of the membrane and what a membrane looks like.
oligosaccharide- helps maintain stable blood glucose levels
glycolipid- they provide energy
hydrophobic cc helix-common structure for membrane proteins.
integral protein- A protein that is firmly anchored in the plasma membrane via interactions between its hydrophobic domains and the membrane phospholipids.
phospholipid
1. Act as building blocks of the biological cell membranes in virtually all organisms
2. Participate in the transduction of biological signals acroos the membrane.
3. Act as store of energy as with triglycerides.
4. Play an important role in the transport of fat between gut and liver in mammalian digestion.

cholesterol- Cholesterol is a waxy, fat-like substance that is made in the body by the liver