Organic Chemistry Problems - butene and propylene

(Complete Problems found in attachment)

GRE Study Guide Question

What Intracellular second messenger is the primary regualator of the physiological response of photoreceptors to stimulus? AND What intracellular messenger is the primary regulator of adaptation of photoreceptors? Please explain, but most of all with the right answer and explanation!

GRE Study Guide

Describe the molecular events that generate the "dark current" in photoreceptor cells; explain the impact of this cycle on the typical resting membrane potential, and how light leads to a hyperpolarization of the membrane. Please Explain and be accurate

Recombinant DNA technology

Describe how genes, viruses and plasmid can be used in recombinant DNA technology.

I need to draw a structure for the following organic compounds

2-pentanol and N-Ethyl Ethanamide

synthesis question: show structure for reactants and products.

ethoxy ethane ethanoic acid n-ethyl ethanamide

i need to draw a structure for the following organic compounds

2-pentanol and n-ethyl ethanamide if someone could help i would greatly appreciate it.

Michaelis - Menton kinetics

I need an explanation on how to use the Michaelis-Menton equation and how it correlates with the Michaelis - Menton plot (graph). Examples would be greatly appreciated.

Michaelis - Menton method and Lineweaver-Burk plot

Explain on how to use the Michaelis-Menton equation and how it correlates with the Michaelis - Menton plot (graph). Also explain the Lineweaver-Burk plot.

Standard and physiological free energy change observed in heart muscles

Distinguish clearly the difference between the standard and the physiological free energy change observed in heart muscle cells.