Cancer

You needed to look at four brochures of different types of cancers that you fellow students have created. You need to give me some feedback on those brochures. Tell me about four types of cancers and what are some of the preventative measures that you can take.

Carbon Cycle

Okay so I know the vedio was a little corny. You should have gotten an idea of how carbon moves through a plant and through an animal. What I need you to do is this; write a summary of the vedio (give me the high points). I would also like for you to tell me about some of the stuff that we have been taking about in class with Photosynthesis and Cellular Respiration. You should have a good paragraph writen. I will not except answers that are shorter than five (5) sentences long.

Photosynthesis and Cellular Respiration

Photosynthesis is the processes of converting carbon dioxide and water, using light energy, into glucose and oxygen. Plants, algae, and certain prokaryotes capture about 1% of the energy in the sunlight that reaches Earth and convert it to chemical energy through photosynthesis.

In plants, light energy is harvested by pigments that are located in the thylakoid membrane of chloroplasts. They use pigments (chlorophyll A and B are two of the main pigments used) to collect light energy and that energy energizes H+ ions which are used in the mitochondria to make ATP. ATP the usable form of energy that living organisms use within the cell. The H+ ions are moved into the In mitochondria using NADPH,which produces a concentration gradient. After the concentration gradient is created we are able to move the H+ ions through ATP synthase, an enzyme and carrier protein, to produce ATP. Than we are able to take it into the next step of photosynthesis which is the Calvin Cycle. The Calvin Cycle is a biochemical pathway that plants use to create organic molecules such as starch, glucose, and sucrose. This energy is stored in the plant until it is needed by the plant or used as food for the fruit of the plant.

In Cellular Respiration takes into the products from Photosynthesis and uses them to make ATP. There are three steps to Cellular Respiration, Glycolysis, Krebs Cycle, and the Electron Transport Chain. The first step is the Glycolysis, this processes does NOT require oxygen, produces 2NADH, 2 ATP and 2 pyruvates. The 2 pryuvate are used in the next step which is the Krebs Cycle, oxygen is required, to produce 6NADH, 2FADH2, and 2 ATP. The NADH and FADH2 are carrier molecules to bring H+ ions to the electron transport chain. The electron transport chain, located in the mitochondria, is able to use the H+ ions to create a concentration gradient by using ATP synthase to produce ATP. The total ATP produced by the Electron Transport Chain is 32. The total ATP produced by Cellular Respiration is 36.

If oxygen is not present that your body goes through lactic acid fermenation. Fermenation is a processes that occurs when oxygen is not present. Bacteria, molds, and yeast only go through a fermenation porcesses called Alcohol Fermenation. The yeild of ATP is much lower in fermenation. When oxygen is present more ATP is yielded.

11th Hour Question 2

What was something that was shocking to you after watching this movie? What is something that you can do to help create a cleaner and healthier Earth?

The 11th Hour

What is something that you saw of the movie today that you didn't know about before and how do you think it is going to affect your future?

Human Impact

On Friday we did some research on the Human Impact on the Earth. All of you found a lot of great websites, but now it is your time to share your opinion. What do you think needs to be done to help our planet. What can you do to make sure that your children and your grandchildren have a safe place to live? What do you think is going to happen if the human population keeps increasing? Remember this is your opinion.

Mitosis

What is mitosis?