Discuss the interrelationships between anabolic and catabolic pathways. Provide specific examples in your answer
What will be an ideal response?
Catabolic pathways generate the energy required for anabolic reactions. Catabolic pathways produce intermediates for other pathways, and some intermediates and products of anabolic pathways provide intermediates for catabolic pathways. The Krebs cycle produces energy to drive amino acid synthesis, and several Krebs cycle intermediates are substrates for amino acid biosynthesis. For example, oxaloacetic acid is a precursor for half a dozen amino acids, and ?-ketoglutaric acid is a precursor for about four additional amino acids. The pentose phosphate pathway produces the five-carbon sugar required for nucleotide synthesis, and various amino acids are metabolized to produce the nitrogenous bases in nucleotides. The Krebs cycle produces intermediates and substrates for lipid biosynthesis. Catabolism of amino acids produces a variety of molecules that are intermediates of glycolysis and the Krebs cycle, and the same is true of lipid catabolism.
Bloom's Taxonomy: Analysis
Section: Integration and Regulation of Metabolic Functions
Learning Outcome: 5.31
You might also like to view...
The descriptive term ectotherm, when applied to reptiles, refers to the fact that:
a. they are warm-blooded b. they derive their body heat from outside of their body by certain behaviors c. their central body core works best when its temperature is the same as the ambient temperature d. their optimum temperature for muscle contraction occurs only when the sun provides direct solar heat e. they maintain their temperature by adjusting the production of metabolic heat
The ability to extract oxygen from the environment and use it to make energy is called
A) photosynthesis. B) comparative biochemistry. C) anaerobic metabolism. D) self-replication. E) aerobic metabolism.
Which of the following statements is INCORRECT?
a. Langerhans cells activate the immune system. b. Tactile cells anchor the skin to the body. c. Keratinocytes produce a fibrous protein to protect the epidermis. d. Melanin provides protection against ultraviolet (UV) radiation.
Water molecules are a reactant for
A. the electron transport system. B. the light-independent reactions. C. the light-dependent reactions. D. glycolysis.