Catalysts are substances that _____ the speed of a chemical reaction and _____ consumed during the reaction.

The _____ pleura are the serous membranes lining the _____ of the thoracic cavity.

Acids _____ the pH of a solution by increasing the concentration of _____ ions in solution.

Lipid bilayer

Which is a change that takes place in cells during aging?

Steroids are lipids that include cholesterol and its derivatives, which in the human body include _____.

Sucrose is an example of a _____. It consists of one glucose monomer covalently bound to one fructose monomer.

A(n) _____ section of a cylindrical structure is neither parallel with nor perpendicular to the long axis of that structure.

DNA and RNA are polymers constructed from nucleotides. The basic structure of a nucleotide consists of a _____.

Mediastinum