Explain how coupled reactions drive metabolism
?When a compound breaks down (catabolism), energy is released, whereas when a compound is being formed (anabolism), energy is required. In metabolism, both catabolic and anabolic processes are going on simultaneously. By pairing the reactions in a way that energy released from catabolic reactions can be captured by anabolic reactions that require energy, one reaction can provide the energy required by the other reaction. The most common catabolic reaction that drives metabolism is the breakdown of ATP to ADP, which provides the energy required for many of the biological reactions that occur in our bodies.
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Which of the following is a characteristic of vitamins?
A. Enable chemical processes in the body B. Provide energy C. Made in sufficient quantities by the body D. Become structural components of the body
Besides providing energy, their main function, carbohydrates also play other roles in the body which includes all of the following except
A) galactose is needed by nerve tissue B) in breast-feeding moms, galactose combines with glucose to produce lactose. C) oligosaccharides are associated with mitochondrial membrane structures D) monosaccharides ribose and deoxyribose play non-energy roles as components of RNA and DNA
What is the approximate fluoride concentration in community water supplies?
a. 1 ppm b. 2 ppm c. 2.5 ppm d. 4 ppm
Pellagra is a disease caused by a deficiency of
A) folate. B) niacin. C) riboflavin. D) thiamin.