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16.2E: Photorespiration and C4 Plants - Biology

All plants carry on photosynthesis by adding carbon dioxide (CO2) to a phosphorylated 5-carbon sugar called ribulose bisphosphate. This reaction is catalyzed by the enzyme ribulose bisphosphate carboxylase oxygenase (RUBISCO). The resulting 6-carbon compound breaks down into two molecules of 3-phosphoglyceric acid (PGA).
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Epithelial cell specialization

The cells of epithelial tissues remain attached to each other by specialized structures, generally called cell junctions. Note these junctions in the figure below. Desmosomes One of the most important cell junctions is the desmosomes (from Greek desmos, binding, and soma, body).
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In details


We can guess what is in the oven only by the smell we smell in the kitchen air. That is the sense of smell. Particles from food, liquids, flowers, etc. They reach our nose and dissolve in the tissue lining the inner roof of the nasal cavity, the olfactory mucosa.
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