Define the equilibrium level of output.

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 is most likely to occur when you place the cell in the 43% solution?

Skeletal muscle cells utilize ATP for muscle contractions.  What type of organelle would you expect to find a lot of here?  Why would they have a lot of this organelle?

Describe what happens to an animal cell when it is placed in a hypotonic solution (which way does water flow and what is the appearance of the cell?).  What is the term for the appearance of an animal cell in a hypotonic solution? (1 point)

Label the cell below in your short answer response. You only have to label the parts of the cell with letters next to them.

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?