Monday, November 12, 2012

Respiratory Lab



Charts; showing respiratory- labeled all of them.

Respiratory System

Pig lung- got to blow up in class and feel it!! REAL!!

Wednesday, November 7, 2012

Face lab 11/7/12

Datasheet; had to flip a coin to choose the genotypes. Was a female. Shows how traits are picked



Meiosis and Mitosis

Shows the transition of a cell to a embryo

Female Reproductive system

Mitosis- showing the cell turn into 2 daughter cells

Male reproductive system.

Cell to embryo- the fallopian tube part

Showing the female menstrual cycle

The process of meiosis.

LOOK AT VIDEO IN PHONE TO GET COMPLETE DETAILS OF EACH PROCESS.
(COULDN'T UPLOAD)

Tuesday, October 9, 2012

Diffusion and Osmosis Lab 10/8/12












For these 3 pictures you can see that the crystals (potassium permanganate powder form) dissolves differently and at different rates depending on the temperature. In the first pic you can see that its ice water, room temperature and a tube from the hot water bath. the powder reacts differently to the temperatures.


This was a lab on diffusion- these are pictures of 2 different dyes , the blue is methylene blue (on the left) and the red is potassium permanganate (on the right) the top picture is when we had just put the dyes in there. The second pic is 8 minutes later. you cans see that the bigger molecules doesn't diffuse as fast.

 This was the lab part that was on osmosis. In the top picture we have slices of potato in the test tube. one test tube has distilled water in it and the other has salt water. once we let it sit for 20 mintues the distilled waters slice of potato felt hard and stiff which was a hypotonic reaction and the salt water slice felt flimsy and moveable, which was hypertonic.

The bottom pic is of celery, one test tube was salt water and the other was distilled. it had the same results the salt water was flimsy and moveable, which was hypertonic and the distilled was hard, hypotonic.


Yeast Lab


The first pic is 15 ml surose in a smith fermentation tube.
This second pic is sucrose when yeast is just added.
Third picture is Lactose when first mixed with yeast, we then had to wait 20 min.
This last pic is all of the smith fermentation tubes in the hot water bath.

The results were: (will be in order of name, displacement(ml), and compound-
Fructose- 10.5 ml, monosaccharide
Glucose- 18 ml, monosaccharide
Lactose- 1.5 ml, polysaccharide
Distilled Water- 0/minimal gas, Protein
Startch- 0 ml, polysaccharide
Sucrose- 12 ml, Disaccharide
Maltose- 9.9 ml, Disaccharide
Gelatin- 0ml, Protein

Enzyme lab

The warmer the temperature the higher the enzyme activity.
The cooler the temperature the lower-
from all the the tubes we saw that liver rises and seperates from the peroxide



Picture of liver and potato pieces in ice water.
The liver- 9.5 cm foam thick and red
The potato- 2.5 cm foam but it didn't seperate far from peroxide.
 

potato and liver with peroxide is in the boiling water


this is the tubes from the ice water. the live which is on the left, you can see that the liver seperates from the peroxide and the potato just have foam sitting on top.


this is the potato and liver at room temperature. you can see that there is foam but it didnt increase as much as the other thats were affected by temperature did.
the liver- 7cm on foam
the potato .1cm, light foam.


this is a pic of the potato and the liver before it was put into the test tubes.


these two pictures are of the test tubes with peroxide and potatos and liver in the hot water bath.
 
 this is the after picture from the hot water bath. the liver had no foam with dried bubbles and the potato was 2cm foam with light water.

this is the temperature of the hot water bath



Monday, September 17, 2012

9/17/12 Lab - Building

Today in class we built structures -
 
This is Water, H2O
This is oxygen, O.
This is carbon dioxide.
This is carboxylic acide, -COOH
This is Amino, -NH2
This is a peptide bond, it is amino acid and carboxylic acid put together. Page 49 in textbook.
This is Glucose, sugar. it is on page 40 in the textbook.
This is what glucose looks like in the book.
This is Phospholipid, it regulates what goes in and out of a cell.
The polar head side likes water and the Fatty Acid tail (the 2 strains) are hydrophobic- they hate water.





 

Thursday, September 13, 2012

9/12/12 pH lab- measuring the different chemicals

Today in lab we measured the pH of 13 different chemicals
We used a pH meter and pH paper.
We wrote down the answers from the meter, paper, the average and if it was an Acid, Base or Nuetral.
we have H2O, Buffer, Ammonia, and Vinegar.
 



  • H2O- Meter 6, Paper 4.5, Average 5.5. It is Acid.
  • Buffer- Meter 7.2, Paper 7, Average 7.1. It is a Nuetral.
  • Vinegar- Meter 3.2, Paper 3, Average 3.1. It is an Acid.
  • Ammonia- Meter 10.9, Paper 10, Average 10.2. It is a Base
 
We have Baking Soda, Bleach and Coke.
 
 
We also have Diet coke, and lemon with low concentration.
 
  • Baking Soda- Meter 8.1, Paper 8, Average 8.1. It is a Base.
  • Bleach- Meter 4.5, Paper N/A, Average N/A. It is an Acid.
  • Coke- Meter 3, Paper 3, Average 3. It is an Acid.
  • Diet Coke- Meter 3.4, Paper 3, Average 3.2. It is an Acid.
  • Lemon low concentration- Meter 3.3, Paper 3, Average 3.2. It is an Acid.
We have Lemon Juice, Coffee, Rolaid and Detergent
 
     
  • Lemon Juice- Meter 2.9, Paper 2, Average 2.5. It is an Acid.
  • Coffee- Meter 6.0, Paper 4.5, Average 5.3. It is an Acid.
  • Rolaid- Meter 4.6, Paper 5.5, Average 5.05. It is an Acid.
  • Detergent- Meter 11.3, Paper 11.5, Average 11.4. It is a Base.