The 4 cellular processes that we will study at the Bio I. level are photosynthesis, cellular respiration, mitosis and meiosis. Cell respiration and photosynthesis are processes by which a cell gets energy. Mitosis and meiosis are processes of cell reproduction.
Cellular Energy: ATP, Cellular Respiration & Photosynthesis
What is ATP?
Adenosine triphosphate (ATP) is considered by biologists to be the energy currency of life. It is the high-energy molecule that stores the energy we need to do just about everything we do. Anytime a cell needs to do work, it usually requires ATP as a source of energy.
The chemical formula is C10H16N5O13P3. ATP is an adeninosine molecule bound to three phosphates.
There is a lot of energy stored in the bond between the second and third phosphate groups that can be used to fuel chemical reactions. When a cell needs energy, it breaks this bond. This results in the formation of adenosine diphosphate (ADP) and a free phosphate molecule. The phosphate can be re-attached to form ATP again in a process called cellular respiration.
Adenosine triphosphate (ATP) is considered by biologists to be the energy currency of life. It is the high-energy molecule that stores the energy we need to do just about everything we do. Anytime a cell needs to do work, it usually requires ATP as a source of energy.
The chemical formula is C10H16N5O13P3. ATP is an adeninosine molecule bound to three phosphates.
There is a lot of energy stored in the bond between the second and third phosphate groups that can be used to fuel chemical reactions. When a cell needs energy, it breaks this bond. This results in the formation of adenosine diphosphate (ADP) and a free phosphate molecule. The phosphate can be re-attached to form ATP again in a process called cellular respiration.
This video is a good overview and comparison between photosynthesis and cellular respiration.
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PHotosynthesis
Cellular Respiration
Cellular Respiration Help:
Watch this animation by Sumanas, Inc. Just play through Glycolysis.
Watch this animation by Sumanas, Inc. Just play through Glycolysis.