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Chapter 7: How cells harvest energy
Energy drives everything of life. Energy is required for every action a creature takes, including the purring of a cat, the swimming of bacteria, and even the thoughts you are having as you read this. This chapter covers the mechanisms that every cell employs to obtain chemical energy from organic molecules and transform that energy into ATP. After that, in chapter 8, we'll look at photosynthesis, a process that converts light energy into chemical energy. Because all animals, including the phot...
- Class notes
- • 7 pages •
Energy drives everything of life. Energy is required for every action a creature takes, including the purring of a cat, the swimming of bacteria, and even the thoughts you are having as you read this. This chapter covers the mechanisms that every cell employs to obtain chemical energy from organic molecules and transform that energy into ATP. After that, in chapter 8, we'll look at photosynthesis, a process that converts light energy into chemical energy. Because all animals, including the phot...
Chapter 8: Photosynthesis
Without photosynthesis, the amazing diversity of life that inhabits our planet would not be possible. Nearly every oxygen atom in the air we breathe was once a water molecule that had undergone photosynthesis and been released. All of the energy produced by burning coal, firewood, gasoline, natural gas, as well as all of the food that is either directly or indirectly burned by human bodies, has been gathered from sunlight by photosynthesis. Therefore, it is crucial that we comprehend photosynthe...
- Class notes
- • 10 pages •
Without photosynthesis, the amazing diversity of life that inhabits our planet would not be possible. Nearly every oxygen atom in the air we breathe was once a water molecule that had undergone photosynthesis and been released. All of the energy produced by burning coal, firewood, gasoline, natural gas, as well as all of the food that is either directly or indirectly burned by human bodies, has been gathered from sunlight by photosynthesis. Therefore, it is crucial that we comprehend photosynthe...
Chapter 6: Energy and Metabolism
Life can be seen as an unceasing flow of energy that organisms use to carry out tasks by existing. Order, development, reproduction, responsiveness, and internal regulation are all essential aspects of life that necessitate a steady flow of energy. The lion will use the energy it absorbs from its giraffe meal to power its roar, fuel its movement, and grow into a larger animal. Without a source of power, life comes to an end. Therefore, it would be impossible to examine life in its entirety witho...
- Class notes
- • 5 pages •
Life can be seen as an unceasing flow of energy that organisms use to carry out tasks by existing. Order, development, reproduction, responsiveness, and internal regulation are all essential aspects of life that necessitate a steady flow of energy. The lion will use the energy it absorbs from its giraffe meal to power its roar, fuel its movement, and grow into a larger animal. Without a source of power, life comes to an end. Therefore, it would be impossible to examine life in its entirety witho...
Class notes BIO 101 (01) General Biology I
Chapter 6: Energy and Metabolism, Chapter 7: How Cells Harvest Energy, and Chapter 8: Photosynthesis.
- Class notes
- • 5 pages •
Chapter 6: Energy and Metabolism, Chapter 7: How Cells Harvest Energy, and Chapter 8: Photosynthesis.