Living cells get the energy they need to survive through metabolism. The two major processes of metabolism are photosynthesis and respiration. In this video we will look at the process of respiration, specifically focusing on glycolysis and fermentation.
Upon completing the lab we found that glucose produced the most CO2 during the process of glycolysis/ fermentation. This is because glucose, unlike the other carbohydrates tested, did not need to be broken down before going through glycolysis. [ Please take note: PAUSE the video to read the NOTES if you find too fast!!]
Animals need energy to carry out the functions of life. Taking the products of plants (Oxygen and Glucose), along with water, we create what the plants need (Carbon Dioxide) to live. At the same time, this beautifully designed system provides animals, like we humans, with all the energy necessary for life
ATP stands for Adenosine TriPhosphate. ATP is how we store and use energy, think of it as the cells currency. Whenever the body needs something it "buys" it with some ATP. ATP is a molecule call Adenine (adenosine once phosphates attach) with three phosphate molecules attached. Picture a kite(adenosine) with 3 big bows(phosphates) attached to the tail. The bond between the second and third phosphate is considered a high energy bond. When that third phosphate is broken off a lot of energy is available. When this happens ATP becomes ADP (Adenosine DiPhosphate). Cellular Respiration is the process the body uses to make ADP into spendable ATP once again.
Glucose, a sugar, has a chemical shape of many elements such as carbon, oxygen, and hydrogen. Inside our cells glucose is changed many times over as it is broken down by the body. This happens just out side and mainly inside an organelle called the mitochondria. Every element has protons and electrons, as the body breaks down sugar it will separate the electrons from the protons to use them to make a lot of ATP. Try to pay attention to two main things..
1. What are the carbon doing? How many are there? Follow the black circles(carbon) and you will really start to get this process quicker.
2. Where are the electrons going? How are they getting there? What is carrying them there? Electrons carry most of the power that will eventually make the ATP in the end.
Videos:Bioenergetics part 1 and part 2
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