Question 1.1. (TCO 4) Ammonia (NH3) accepts a proton from water. Which of the statements listed below is true according to Bronsted-Lowry definitions? (Points : 2)
Ammonia is a base. Ammonia is an acid. Ammonia produces H+ ions in aqueous solutions. Ammonia acts as a solvent. Ammonia is neutral.
Question 2.2. (TCO 4) An unknown solution has a pH of 8. This solution is (Points : 2)
extremely acidic. moderately acidic. neutral. slightly basic. extremely basic.
Question 3.3. (TCO 4) A solution contains 1 � 10-6 M [H3O+]. Which is the pH of this solution? (Points : 2)
1.0 � 10-8 M -8.0 6.0 -6.0 8.0
Question 4.4. (TCO 5) Aldehydes and ketones both contain carbonyl groups. How many atoms are bonded to the carbon of the carbonyl group? (Points : 2)
One Two Three Four
Question 5.5. (TCO 5) Which of the atoms below is found in amines? (Points : 2)
Nitrogen Sulfur Oxygen Chlorine
Question 6.6. (TCO 5) Why do carbon atoms have unique bonding abilities? (Points : 2)
Carbon has been around so long due to its inertness. Carbon is one of the most abundant elements on Earth. Carbon is able to form bonds with itself and many other elements. None of the above All of the above
Question 7.7. (TCO 5) Which one of the following statements about the functional groups of organic compounds is true? (Points : 2)
Functional groups help make organic compounds hydrophilic. Many biological molecules have two or more functional groups. Functional groups participate in chemical reactions. All of the above None of the above
Question 8.8. (TCO 6) Which of the following is paired incorrectly? (Points : 2)
Peroxisome: Catalase Mitochondria: Eukaryote Cytoskeleton: Tubulin Nucleus: Prokaryote Ribosome: Protein synthesis
Question 9.9. (TCO 6) The structural combination of RNA and protein forms _____. (Points : 2)
nucleoli nucleoplasm chromatin ribosomes ATP
Question 10.10. (TCO 6) If a cell’s cytoskeleton disappeared, the cell would _____. (Points : 2)
move more quickly divide into two cells digest itself need to manufacture more lysosomes collapse
Question 11.11. (TCO 6) Compare and contrast prokaryotic and eukaryotic cells. Be sure to list similarities and differences for full credit. (Points : 10)
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