Use this information to answer the question:  A newly discovered unicellular, aquatic (i.e., lives in water) animal species has cells with a solute concentration of 45% solutes.  Understanding the process of osmosis and the effects of isotonic, hypotonic, and hypertonic solutions on cells, you are attempting to determine the safest solution for transport of this organism back to your laboratory for further study (you want to keep it alive!).  You have available the following solutions:  10% solutes, 43% solutes, and 85% solutes.  Answer the following question: Which of the following will most likely occur if you place the cell in the 10% solution?

Would you expect to find chloroplasts in cells of the part of an onion plant that is growing underground?  Why or why not?  What is the function of the chloroplast?

Explain why it is useful for the pancreas cells that secrete digestive enzymes to have lots of rough endoplasmic reticulum and Golgi apparatus.  Be sure to describe the function of those organelles.

State the four major types of biological molecules that make up the cell membrane.  Describe a function of each in the cell membrane. (4 points)

Based on its location on the periodic table, barium (Ba), has what ion charge?

Calcium phosphate is the primary ingredient in calcium supplements.   The formula is Ca3(PO4)2.  The charge of the cation and anion are:

The formula for calcium oxide is:

The formula for copper (I) sulfate:

Sodium nitrite is used to cure meats.  The formula for sodium nitrite is:

Organisms that use CO2  as carbon source are called ________.