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Chapter 3 Resource: Interactions of Human Systems

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Name Date Class<br />

Laboratory Activity 2 (continued)<br />

2. What can you conclude about how some cells in your body get some <strong>of</strong> their nutrition<br />

3. In the experiment with the corn syrup, did the water enter the bag<br />

Hands-On Activities<br />

4. Did the corn syrup appear to leave the bag<br />

5. Which substance do you think has larger molecules—water or corn syrup Why<br />

Copyright © Glencoe/McGraw-Hill, a division <strong>of</strong> the McGraw-Hill Companies, Inc.<br />

6. This type <strong>of</strong> barrier is called a semipermeable membrane. What does it mean when the<br />

membrane <strong>of</strong> a human cell is called semipermeable<br />

Strategy Check<br />

Can you observe diffusion<br />

Can you observe and describe how a semipermeable membrane works<br />

<strong>Interactions</strong> <strong>of</strong> <strong>Human</strong> <strong>Systems</strong> 17

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