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Metabolism and the Liver (Metabolic Reactions (The reactions of…
Metabolism and the Liver
Metabolic Reactions
- The reactions of respiration
- The reactions of photosynthesis
- Conversion of glucose to starch, glycogen and cellulose
- Use of glucose and nitrate ions to form amino acids that are then used to make proteins
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- Formation of lipid molecules from a molecule of glycerol and 3 fatty acid molecules
Removing Lactic Acid
Oxygen debt is repaid once the lactic acid is converted back into glucose and the glucose is completely broken down in aerobic respiration of form CO2 and H2O
The glucose made from the lactic acid may be converted into glycogen and stored in the liver until it is needed
Blood flowing through the muscles transports the lactic acid to the liver where it is converted back into glucose
An important role of the liver is dealing with lactic acid produced by muscles during anaerobic reactions
The Role of the Liver
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Passing the breakdown of products into the bloody so they can be excreted in the urine via the kidneys
Breaking down old worn out blood cells and storing the iron until it is needed to synthesize more blood cells
Metabolism
Some of it is used by the organism for enzyme-controlled processes of metabolism that make molecules or break them down
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The metabolism of an organism is the sum of all the reaction that take place in a cell or in the body