The presence of multiple hexokinase isozymes (i-iv) for the phosphorylation of glucose enables specific organs to regulate carbohydrate metabolism in a unique way. hexokinase iv (blue curve in the plot below), also called glucokinase, is the predominant isozyme in liver and has distinct kinetic properties from the other hexokinase isozymes (representative curve in red). note the difference in the shapes of the curves within the physiological range of glucose concentration (~4 to 6 mm).

1. -define adaptation2 explain darwin's theories of descent with modification and natural selection in detail3. -explain how each of these provides evidence for evolution: a. -fossil record, including superposition and transitional fossilsb-anatomy, including homologous structuresc-biological molecules, including dna and proteins4. -explain the difference between convergent and divergent evolution.5. -define and give three examples of artificial selection6. -define and give one example of coevolution.7. -explain biodiversity and how it benefits humans.8. -explain a type of population lest affected by environmental change.