What functional group is commonly used to transfer chemical energy from one organic compund to another in cells?

The figure below shows the structures of glucose and fructose. These two molecules are:

At puberty, an adolescent female body undergoes changes in both the structure and function of several organ systems, primarily under the influence of changing concentrations of estrogens and other steroid hormones.  How can one hormone, such as estrogen, mediate so many effects?

A biology textbook describes a membrane-bound receptor in this way:  “When this type of receptor binds to a signaling molecule, it forms a dimer with a second receptor of the same type.  The dimerized proteins then phosphorylate one another.”  The receptor being described is a(n):  

Which of the following statements describes the function of inositol triphosphate (IP3) as a second messenger?

Insulin is a protein that is produced by pancreatic cells and secreted into the bloodstream.  Which of the following choices best describes the intracellular route of insulin from its production to its release from the cell?

What is the term used to describe enlargement of the liver?

Label at least 12 different parts of the diagram provided. Make sure to only use the technical terms used to describe/name these regions.  As a response here, just write the name of the anatomical plane that is shown in the diagram. 

Explain the difference between disinfection, hygiene, and sanitation

A patient has an infection and has bullas and vesicles on his arm. What is the best description for these signs?