Below is the graphs for Enzyme A and B. What is the activity of Enzyme B at pH 5?  

A protozoan cell is put into a beaker of pure water. Predict what will happen to the protozoan cell.

The organisms, _______, live together deep in the oceans. One organism provides light for the other to see. They are classified as barophiles due to the pressure they need.  

____________ is the process  where ions move across a membrane and this process fuels the synthesis of ATP in the electron transport chain.

Below is a chemical reaction. What molecule is being oxidized?  

What are the products of the Krebs/TCA Cycle?

The bacterium Rhizobium lives on the roots of legume plants and fixes nitrogen for the plant.  These organisms must be together. This relationship is known as __________________________. 

Which statement is false about NADH numbers?

According to the article, what potential problems can arise for E. coli when it undergoes fermentation?

This enzyme is used in the transition step to remove CO2 from pyruvate.