By; Bhargavi Sarangapani- Period 5
Photosynthesis- An Introduction
Just as photosynthesis occurs in the chloroplast of a plant cell, cellular respiration occurs in the mitochondria of an animal cell. The steps are as follows:
- Glucose enters the cell through facilitated diffusion, as glycolysis breaks down the 6 carbon glucose into two 3 carbon pyruvates.
- 2 ATP are produced in the cytoplasm in this process.
- When the Kreb's Cycle happens in the mitochondria, it emits 2 ATP (4 in total so far) and carbon dioxide.
- The electron transport chain occurs across the inner membranes of the mitochondria, producing H2O and 32 ATP.... a lot of energy!!
Anaerobic respiration, on the other hand, does not require oxygen when there is not enough oxygen for aerobic respiration to occur. However, there are two types of fermentation it goes through to continue making ATP (2 to 4) with glycolysis; both being lactic acid fermentation and alcoholic fermentation. Glucose is the main energy source.
When a human being exercises, or when a panda walks for a long period of time, lactic acid builds up.
Similarities Between Both Cellular Respiration and Photosynthesis
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