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Announcements &
Assignments
Lecture Objectives
Web Resources
DNA
Chromosomes
Cell Cycle
Control of
the Cell Cycle
Stem Cells
Cancer Cells
Lecture
Syllabus
IB 100/101 Home
Page
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Announcements
Text Readings
in Lewis, et. al. |
Testing Your Knowledge |
Thinking Scientifically |
Chapter 8,
Chapter 12
DNA Structure and Replication
pgs. 225-227 and fig. 12.1
pgs. 235-236 |
Page 155, Questions 1-7
Page 240, question 1
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Page 156, Questions 1-5
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The "Mastering Concepts" boxes are valuable summaries of the main
ideas in these sections of the text.
Answers to many of these questions can be found at the Text On-Line Learning Center
You may also ask questions and see answers to your classmates'
questions in Web Crossing in the "Talk to Jim, Ross and Ed" discussion.
Lecture Activity: Coupling of photosynthesis and
respiration Biomass accumulation in bean plants:
Seeds
germinated in dark and light
Germination
Data Table How do you explain the biomass decrease of
bean plants in the dark versus the light? - PRINT your name
in one corner of a sheet of paper
- SIGN your name in the same corner
of the paper
- Hand in the sheet when asked to do so.
Objectives:
After studying this material you should be able to:
- Draw a diagram, create a concept map, or write a paragraph that
explains the relationships among these terms;
| chromosomes |
sister chromatids |
centromeres |
| telomeres |
DNA |
nucleotides |
| bases (A, C, G, T) |
complementary base pairing |
sugar (deoxyribose) |
| phosphate group |
semi-conservative
DNA replication |
cell cycle |
- Use common objects such as pencils or paper clips to model the
replication and movement of chromosomes in a cell through all stages of
the cell cycle.
- Using your body as a model organism, describe where we would find
cells undergoing mitosis and where we would find cells that are not
likely to be dividing.
- Describe the mechanisms by which cell division is controlled in your
body.
- Define the term, apoptosis, and describe the role of this process in
normal human development.
- Describe the special characteristics and functions of stem
cells.
What is DNA, Why do we need it, and Where does it come from?
Lewis, et. al., pg 236, figure 12.14
What are Chromosomes?
The Life of a Cell:
Cell Division, Cell Maturation, and Cell
Death (Apoptosis)
Control of Cell Division
Stem Cells
Text, Pg. 150, fig. 814
- Cell Populations
- Renewal Cell Populations (digestive tract)
- Expanding Cell Populations (Repair, young organisms, some adult
kidney, liver, pancreas, and bone marrow)
- Static Cell Populations (Nerve & Muscle cells - stuck in
G1)
- Cell Death- Apoptosis Text Pg. 151, fig 8.15
The Stem Cell Institute
Cancer Treatments Concentrate on Control of Cell Cycle
See OncoLink, Cancer Causes, Screening, and Prevention
from the University of Pennsylvania.
Informtion
about cancer and cancer treatments from the U.S. Food and Drug
Administration - Center for Drug Evaluation and Research
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