You have purified the enzyme enolase from both beef heart and e. coli. enolase catalyzes the conversion of 2-phosphoglycerate to phosphoenolpyruvate. you have carried out preliminary kinetic analysis and obtained the following data: Enzym source Km VmaxBeef Heart 1.9x10^-3 M 290 nmol/minE. Coli 24x10^-6 M 18 nmol/minYour boss ask you which enzyme is more efficient. What is your answer and why?

Which of the following would most likely be key to gathering evidence that the rna world hypothesis is valid? creation of suitable environments for long-term study of single-celled organisms simulation of early earth conditions and long-term study of the resulting molecules development of a system for studying the microsphere's ability to absorb additional molecules categorization of the different specific conditions that result in the development of microspheres

Drag each tile to the correct box. the body monitors the levels of oxygen in the blood to regulate breathing. isabel is running in a marathon and is near the finish line. she feels out of breath. how will her nervous system work to generate a reaction? arrange the tiles in chronological order. isabel's breathing rate increases. sensory receptors in the arteries detect low oxygen levels. the brain sends signals through motor neurons. sensory neurons generate an impulse. the central nervous system relays an impulse to certain brain regions.

Which kind of electrical charge is found on a hydrogen atom of a polar water molecule