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By GERARD CHRETIEN BIOLOGY
Cellular Pathways
Several principles govern metabolic pathways in the cell:
A. Complex chemical transformations in the cell do not occur in a single reaction, but in a number of small steps that are connected in a pathway.
B. Each reaction is catalyzed by a specific enzyme.
C. Metabolic pathways is catalyzed by a specific enzyme.
D. Many metabolic pathways are compartmentalized, with certain steps occurring inside an organelle.
E. Metabolic pathways in organisms are regulated by the activities of a few enzyme.
Obtaining Energy and Electrons from Glucose
The most common fuel for living cells is the sugar Glucose.
Cells trap energy while metabolizing glucose
If glucose is burned in a flame, it readily forms carbon dioxide, water, and a lot of energy----but only if oxygen gas(O2) is present. The balance equation for this combustion reaction is:
C6 H12......
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Title: Cellular Functions
Approximate Word Count: 2128
Approximate Pages: 9 (250 words per double-spaced page)
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