Today's
Learning Objective(s):
Explain
the effect of surface area-to-volume ratios on the exchange of materials
between cells or organisms and the environment
Tasks:
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1 |
Pre-Lab Read about the phenomenon that cells are small
(page 1). Then, answer the questions on page 2 with your lab mates. |
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2 |
Conduct
the lab Follow directions on pages 3-4 to item #4. The cubes
need to soak in NaOH for 10 minutes. CAUTION: NAOH is a strong base. It is corrosive.
It can cause chemical burns and damage eyes. Wear goggles, gloves and take precautionary
actions. |
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3 |
Cell Size is Limited by Surface Area (worksheet) Go over the answers to the homework. |
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4 |
Lab results Complete
items 4-9 on page 4. Complete
analysis pages 5-6 items #1-7 |
Homework
Complete MCQs 2.2
Read & Review Textbook 5.1
Upcoming
Assessments
Quiz:
Cellular Structure and Functions – Monday, October 6