Download Bio200 POGIL Cell Biology Activity 1 – Biological Molecules Schivell

Bio200 POGIL Cell Biology Activity 1 – Biological Molecules
Schivell
STUDENT KEY
NOTE: Only some of the answers have been posted! This is to make sure you do the work
yourself. You can check with other students or your TA for confirmation.
4. Yes – CO2 is a good example – the symmetry of the partial negative charges renders the overall
molecule nonpolar.
5. Polar
Nonpolar
Polar
6. Methanol and water
7. Ethane
8. Ethane
9. Methanol
10. In general, nonpolar molecules are hydrophobic.
11.
Hydrophilic
Hydrophilic
Hydrophilic
Hydrophobic
14. The hydrogen has a partial positive charge which is attracted to the partial negative charge of the
oxygen.
17.
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Bio200 POGIL Cell Biology Activity 1 – Biological Molecules
18. Only some of the possible H-bonds are shown in A and C.
A: Protein structure
B: DNA base pairing
C: Plant cell wall (cellulose)
Oxygen
(dark gray)
Carbon
(light gray)
Hydrogen
(white)
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