Name (PRINT): ............................................................ Class Time: ............... Date: ...............(GBI_QuizSeries_3b)

5. Cell Structure Study Guide/Quiz

ALL answers can be found in the ONLINE LECTURE NOTES on Dr. Nilssons CyberOffice, or in the textbook on pages noted.


l LECTURE OBJECTIVES

‚ AT THE END OF THIS LECTURE, YOU SHOULD BE ABLE TO:

1. Recognize that two laws of thermodynamics guide the nature of energy transformations.
2. Compare the energy transformations / reactions involved in photosynthesis and cellular respiration, showing how these processes are related.
3. Distinguish between exergonic vs. endergonic reactions.
4. Explain the need for enzymes in the maintenance of living things, and describe what happens when an enzyme and substrate combine (recognize that enzymes catalyze biological reactions by lowering the energy of activation needed to break/form chemical bonds).
5. Explain the role of cofactors (e.g., vitamins) in enzyme operation.
6. Describe the effects of enzyme inhibitors and [other] environmental factors, such as temperature, pH and salt, on enzymes.
7. Describe how ATP functions as a universal energy shuttle, carrying energy in usable chunks from large storage molecules (mainly carbohydrates and lipids) to places in cells where work needs to be done.
8. Define selected key terms.


l QUIZ

• 1. Define “diffusion” and give an example:

(see textbook glossary, or p. 80)


__________________________ Example: gas exchange in lungs, dye placed in water


Name four organelles Give the functions

(see textbook, Ch. 4, Fig. 4.15, or Table 4.2)

• 2. _________________________________________ ‹ ________________________________________________________

• 3. _________________________________________ ‹ ________________________________________________________

• 4. _________________________________________ ‹ ________________________________________________________

• 5. _________________________________________ ‹ ________________________________________________________

• 6. Prokaryotic cells
A. do NOT have a nucleus
B. have a nucleus
C. are bacteria (see textbook, Table 4.2, p. 73)
D. A and C
E. None of the above

• 7. Eukaryotic cells
A. do NOT have a nucleus
B. have a nucleus
C. are bacteria B
D. A and C
E. None of the above

• 8. Define “hypertonic”:

”Having more”, term used to compare solid concentrations between two solution

• 9. Define “hypotonic”:

”Having less”, term used to compare solid concentrations between two solution

• 10. List the components (molecules) of the plasma membrane:

(see textbook, p. 77, figure 5.4)