CH 3 HW - Homework N0. 3. (40 points) CH 3. Molecules of...

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Homework N0. 3. (40 points) CH 3. Molecules of Life . I. Multiple Choices (0.5 points each). Select the one alternative that best completes the statement or answers the question then fill the corresponding box-square on the Scantron sheet. 1. Organisms that use methane as an energy source usually produce ____ as a byproduct. a. carbon dioxide b. hydrogen c. oxygen d. both carbon dioxide and hydrogen e. both hydrogen and oxygen 2. Massive release of methane hydrate from the ocean floor would cause which atmospheric gas to decrease in concentration in the atmosphere? a. carbon dioxide b. hydrogen c. oxygen d. both carbon dioxide and hydrogen e. both hydrogen and oxygen 3. The three most common atoms in your body are a. hydrogen, oxygen, and carbon b. carbon, hydrogen, and nitrogen c. carbon, nitrogen, and oxygen d. nitrogen, hydrogen, and oxygen e. carbon, oxygen, and sulfur 4. Carbon forms bonds with a maximum of how many other atoms? a. 2 b. 3 c. 4 d. 5 e. 6 5. The atom diagnostically associated with organic compounds is a. carbon b. oxygen c. nitrogen d. sulfur e. hydrogen 6. Which compound is hydrophobic? a. ethyl alcohol b. simple sugar c. hydrocarbon d. glycerol e. amino acid 7. A - CH 3 group is a(n) ____ group. a. carboxyl b. hydroxyl c. amino d. methyl e. carbonyl 8. An - NH 2 group is a(n) ____ group. a. carboxyl b. hydroxyl c. amino d. methyl e. carbonyl 9. All alcohols have a(n) ____ group. a. carboxyl b. hydroxyl c. amino d. methyl e. carbonyl 10. All organic acids have a(n) ____ group. a.
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This note was uploaded on 12/21/2010 for the course BIO 03 taught by Professor Garcia during the Fall '08 term at Los Angeles City College.

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CH 3 HW - Homework N0. 3. (40 points) CH 3. Molecules of...

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