Can there just be some explanation to what is going on here? What the benefits o
ID: 206480 • Letter: C
Question
Can there just be some explanation to what is going on here? What the benefits of metabolic pathways that are occuring where they are perfomed? Why would they be performed where it is specified? Would there be negative effects for it occuring the other way?
In plants cells, Glycolysis occurs in the cytoplasm, whereas biosynthesis of starch occurs in an organelle called the plastid. The key steps are shown in the figure alongside. (PGI Phosphoglucolsonerase, G6PT - G6PTranslocase) CYTOSOL Glucose Fructose-6-PO PGI Glucose-6-PO Glycolysis G6PT Glucose-6-PO Glucose-1-PO, Starch PLASTIDExplanation / Answer
the figure given is a simple representation of glycolysis process in plants. in glycolysis, glucose molecules converted into pyruvate (aerobic) or lactate (enerobic) molecules and release energy. generally plastid is mostly found in algae, it is a cytoplasmic organelle having chloroplast which helps it to produce starch. starch is a long polymer chain of glucose molecues which is formed by reaction between CO2 and H20 in the presence of light (photosynthesis). now this molecules under go enzymetic reaction in glycolysis in cytosol and convert glucose into pyruvuc acid or lectate.
plastis (having chlorophylls) produced glucose. which helps the plant/ algae to generate energy. ATP and NADH molecules are generated at the end of glycolysis.
it is a specific reaction because chlorophylls which converts the light energy into chemical energy for plant, are located into plastid. hence the reaction of production of glucose is psecified in plastid. on the other hand, all the necessory enezyme for glycolysis to occure, are present in cytoplasm hence the glycolysis of glucose in occured in cytoplasm.
surely glycolysis have negative effect in humans, it causes genetic disease like pyruvate kinase deficiency and cancer. but in plant it is less harful, although it can affect plant health if it is not regulated. here over production or under production of glucose will influence overall reaction and increase risk of disease in plant.
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