Muddiest Point

What happens in highblood pressure?

Muddiest Point

Can you please tell me what the role of ATP and electron carriers (NADP+) are in photosynthesis?

Muddiest Point

I am confused what the ecological, economic, and humanistic importance is to invertebrates and the ecological, economic, and humanistic aspects of vertebrates.

Muddiest Point- Sammy K

How does Photosynthesis and aerobic respiration have an impact on the process of evolution?

Scribe 2/2

Homework:
1) READ 19.1 (Skip Pages 544 and 545).
2) Unit Packet 33-36
3) TV Ad on FEB 28

Today in class we first looked over pages 33-36 in our unit packet. Afterwards we watched a Bill Nye Video and learned that:

• Contents of the clay in KT has Iridium which is something only found in space (this is evidence that there was an asteroid which had hit earth in the past).
• That an asteroid made all living creatures on earth perish (dinosaurs, etc.)
• The asteroid was said to be 8 times bigger than the grand canyon.
• A man made an experiment where he took a chamber that had gasses which were used back in time and then placed energies into it which created amino acids. (this shows that this may of been the reason how life was created).

Muddiest Point

Can you please explain to me the differences in the menstrual cycle with and without fertilization?

Scribe- Sammy K

Today In Class we first talked over electrophoresis, plasmids and also Restriction Sights.

- Gel Electrophoresis is used to separate DNA fragments.

- Shorter fragments move faster and more farther away from the starting point compared to the longer fragments.

- Gel Electrophoresis is used often in crime scenes because it compares the DNA from the crime scene to a certain prospect.

Plasmid: is a small circular DNA which is located in the cytoplasm of a bacteria.

(Here is a picture of Plasmid DNA formation)

This picture shows how bacteria can be transformed using recombinant plasmids.

Restriction Sight: It is the location where the restriction enzyme can be cut at.

Recombinant DNA molecules are made up of DNA from a various group of sources. The restriction enzymes cut the DNA at certain spots (Restriction Sight), and then produces "sticky ends". When two DNA molecules are cut with the same restriction enzyme, then the sticky ends will bond together (in the fragment) of the DNA which have sides which are complementary.

HW:
RESPOND TO MUDDIEST POINTS BY TOMORROW.

PUNNETT SQUARE RE-TAKES TOMORROW

Muddiest Point

Can you please explain to me how cells can be transformed?

Muddiest Point

Can you please explain to me how cells can be transformed?

Cystic Fibrosis- Sammy Kim

Cystic Fibrosis

Cystic Fibrosis is inherited when chromosome 7 (called CFTR) contains a defective gene. If both parents which contain Cystic Fibrosis or are carriers of the disease pass the flawed gene onto their child, then the child will be affected with Cystic Fibrosis. If the child only inherited one of the flawed gene, then the child will be called a carrier which is not affected with the disease, but it can possibly be passed down and affected on their children. When people is affected with this disease, they have symptoms such as: coughing, a salty-tasting skin, weight loss, and a lot more. They also have thick mucous clogs in the airways for the lungs which rises the chance of having an infection. This happens because the protein produced by this gene helps salt move in and out of the cells, but without it the lungs will be clogged up with thick and sticky mucous. People with Cystic Fibrosis can be detected by the excessive amount of salt in their sweat and also by taking a sample of their blood. There is no cure for this genetic disorder, but there are a few treatments which makes the people with the disease live longer. The treatments for it are repeatedly hitting the back to free up the mucous in the chest, inhaled antibiotics which keep the airways open and resist the infection in the lungs, and gene therapy (When a healthy chromosome 7 is placed into the lung cells of the person with the disease to fix the defective gene). Cystic Fibrosis is most common with the white people population in the United States. It is said that it is found in 2,500 to 3,500 White newborns in one year. There are about 30,000 people in the United States which is affected by Cystic Fibrosis. The average life expectancy for someone with Cystic Fibrosis is around 30 years old.

(HERE IS A PICTURE OF A CHROMOSOME 7 WHICH CONTAINS A DEFECTIVE GENE).

Muddiest Point- Sammy K

I'm really confused on what the helper t-cell's job is and what happens in cell mediated immunity

Muddiest Point- Sammy K

I'm kind of confused on what Chromatids and Chromatins are.

Muddiest Point- Sammy K

I'm kind of confused on what Chromatids and Chromatins are.

Sammy K Scribe 10/6/11

The first thing we did today in class was the Cell Quiz.

What we learned today in Class:

• Catalysts: A substance that speeds up a Chemical Reaction (H2O2 w/ Catalase)
• Catalysts decrease the amounts of energy needed to start the chemical reaction and it does not get used during the reaction.
• Enzyme: They are different than acatalysts because it takes place in living organisms.
• And enzymes are affected by changes in pH, Temperature, and substrate concentration.

After we had leaned about Enzymes and Catalysts we started to work on our lab.

Lab:

On our lab we put 2 elodea leaves on opposite ends of the slide and put 2 to 3 drops of tap water on one side and 2 to 3 drops of 6% salt water on the other.

When we put the slides under the microscope we had to observe where the cell wall, cell membrane, and chloroplasts were on both elodea leaves.

HOMEWORK:

PLASYMOLYSIS LAB

FINISH UP 36-37 (Page 211 to Help!)

next scribe:

(I don't know where the list is for the people who hadn't been scribe yet)

Muddiest Point

What is the difference between a biomass pyramid and a numbers pyramid?