25. Self-Sustaining Chemical        Systems: Living Cells   Previous PageNext Page
       Questions


1. What is the difference between the basic cell structure of procaryotes and eucaryotes? What kinds of living organisms are representative of each type?

2. Are bacteria procaryotes, or eucaryotes? How is the DNA stored in a bacterial cell?

3. What is the difference between a bacterial cell wall, capsule, and outer membrane? Which of these is most important in controlling entrance and exit of molecules and ions?

4. What is the distinction between active and passive transport across a membrane? Which of these processes can lead to accumulation of an excess of substance on one side of the membrane? Which of these requires an outside source of energy? Where does this energy come from?

5. Where does glycolysis take place in a bacterial cell? In respiring bacteria, where are the enzymes of the respiratory chain located?

6. Where does glycolysis take place in a eucaryotic cell? Where are the citric acid cycle enzymes located? How do the products of glycolysis reach these enzymes? Where are the respiratory enzymes found?

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