BIO 141 Grossmont College Biology – Silverthorn, 8th Ed Study Guide
Study Guide and Lecture Outlin
es for Reading in Silverthorn, 8th Ed:
(if you are using an older edition simply look for the section titles listed below)
Chapter 5:entire chapter (Membrane Dynamics)
[EXCEPT FOR RESTING MEMBRANE POTENTIAL, pp 152-158, this will be covered for lecture exam II)
Chapter 6:entire chapter(Communication, Integration, and Homeostasis)
Chapter 7:the entire chapter
(pay close attention to your study guide and lecture notes)(Introduction to the Endocrine System)
Learning Objectives and Study Questions:
1.List alternative ways that the body can produce ATP besides direct carbohydrate oxidation.
2.How and why do cells regulate their metabolism?
3.What other sources and pathways can the body use to harvest glucose?
4.Compare and contrast allosteric and covalent modulation.
5.Explain the function of “enzyme modulators” (theory will be covered in class).
6.Distinguish between and give an example of local control vs. a reflex control system.
7.State factors in the internal environment that are regulated by homeostatic control systems.
8.Explain how physiological control systems monitor and regulate the composition of the ECF (both plasma
and the interstitial fluid) by monitoring and regulating plasma composition and volume.
9.State the characteristics of a homeostatic control system and apply these components to control of a variable
such as blood glucose. (This will require you to do some research and apply what you looked up)
10.Describe a negative feedback system for the endocrine system.
11.Define and give an example of a positive feedback system
12.Distinguish between and give examples of:
a.passive and active transport
b.non-carrier mediated and carrier-mediated transport
13.Describe the structure and function of channel proteins.
14.Describe the types of gating of channel proteins.
15.List and explain the steps in carrier-mediated transport.
16.Apply these characteristics :saturation, competition, and specificity-to the function of carrier proteins.
17.Compare and contrast:2
a.facilitated diffusion and primary active transport
b.primary and secondary active transport
18.Given the size, polarity, and concentrations of a molecule predict the way it will move (or be moved) across the cell membrane.
19.What is the purpose of a cellular membrane and how does this membrane play a role in cell signaling and
homeostasis?
20.How can membrane composition lend to the function of a particular cell?
21.What types of proteins can be found in the cell membrane and why would they be placed there?
22.Predict what type of transport a molecule would need in order to cross a plasma membrane and explain your
answer.
23.How does water contribute to the weight and physiology of a human?
24.Why does the body keep certain solutes at “disequilibrium”?
25.What are major pathways that cells will use to communicate with each other?
a.Give an example of each.
26.Why are receptors and signal transduction pathways important to cell communication?
27.Why does the body have set points and in what ways will the body maintain them?
28.Discuss how hormones may be classified.
29.Describe the mechanism of control and action of certain hormones, including given clinical pathologies from
lecture.
30.Give an example of each transmembrane transport process. Be sure to include energy/protein requirements
(a table may help).
31.What would happen to a cell’s metabolism if it could not do active transport? Why?
32.What may happen to a person if the body went into complete chemical and electr
ical equilibrium?a.Why?
33.Considering that signaling pathways may use the same proteins for different functions, how can the cell
make sure the appropriate response is made?
34.What is obesity?
a.How does it affect human physiology in general? Why?
b.Why is it a growing health concern for allied health fields?
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