Bio 130 – 2

Directions: Please answer each of the following questions.  Please ensure that your responses are at least 3 to 5 sentences in length.


1.Describe how the concept of the cell has changed over the past 200 years.


2.On the basis of surface area-to-volume ratio, why do cells tend to remain small?


3.List the membranous organelles of a eukaryotic cell, and describe the function of each.


4.What will happen if an animal is placed in a hypertonic solution?


5.Describe three of the six methods that allow the exchange of molecules between cells and their surroundings.


6.What is the difference between a catalyst and an enzyme?


7.Describe the sequence of events in an enzyme-controlled reaction.


8.How do these three types of molecules relate to one another (enzymes, coenzymes, and vitamins)?


9.Describe what happens during electron transport and what this has to do with a protein pump.


10.What is enzyme competition and why is it important to all cells?


11.  Compare and contrast the following: diffusion, osmosis, and dialysis.  Next, explain what makes each of these processes unique.  Finally, explain why it is important to understand the concepts of each passive transport processes.


12.  If your cell were to be a city, what would each organelle be in your city (i.e. the power station, the police station, city hall, etc.). 




Directions: Write a 1 to 2 page, double-spaced paper in 12 pt. font in response to the following question.   Please use APA format.  


Prokaryotic and Eukaryotic Cells



Compare and contrast the differences between prokaryotic and eukaryotic cells.  Explain what organisms have prokaryotic and eukaryotic cells, what makes each of these cells unique, and why they are very important in our environment.

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