Chemistry Human Activity, Chemical Reactivity International Edition by Paul Treichel - Test Bank
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Chemistry Human Activity, Chemical Reactivity International Edition by Paul Treichel - Test Bank

Chemistry Human Activity, Chemical Reactivity International Edition by Paul Treichel - Test Bank   Instant Download - Complete Test Bank With Answers     Sample Questions Are Posted Below   Chapter 1 Mahaffy International 2e TBCopyright © 2015 Nelson Education Limited 1-213. All compounds found in wood smoke are beneficial.ANS: F PTS: 1 REF: p. …

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Chemistry Human Activity, Chemical Reactivity International Edition by Paul Treichel – Test Bank

 

Instant Download – Complete Test Bank With Answers

 

 

Sample Questions Are Posted Below

 


13. All compounds found in wood smoke are beneficial.
ANS: F PTS: 1 REF: p. 13 BLM: Remember
14. A cup of coffee contains toxic natural substances.
ANS: T PTS: 1 REF: p. 13 BLM: Remember
15. The World Health Organization estimates that less than 70% of the world’s population uses medicines
made from plants and herbs.
ANS: F PTS: 1 REF: p. 13 BLM: Remember
16. Most modern drugs are modified from chemicals originally found in plants and herbs.
ANS: T PTS: 1 REF: p. 13 BLM: Remember
MULTIPLE CHOICE
1. Which of the following techniques could be used to separate compounds in a mixture?
a. spectroscopy
b. chromatography
c. chemotherapy
d. photodynamic therapy
ANS: B PTS: 1 REF: p. 2 BLM: Remember
2. Which of the following can be determined by spectroscopy?
a. the structure of molecules
b. the natural abundance of isotopes
c. the biological activity of ions
d. the toxicity of compounds
ANS: A PTS: 1 REF: p. 2 BLM: Remember
3. The earth’s crust is made primarily of which element?
a. silicon
b. nitrogen
c. sulfur
d. oxygen
ANS: D PTS: 1 REF: p. 2 BLM: Remember
4. Which of the following can spectroscopy tell us about a molecule?
a. its name
b. its history
c. its location
d. its structure
ANS: D PTS: 1 REF: p. 2 BLM: Higher Order

5. Which of the following is used in spectroscopy to elucidate the structure of molecules?
a. triplet oxygen
b. photosensitizers
c. energy
d. neutrons
ANS: C PTS: 1 REF: p. 2 BLM: Higher Order
6. Which of the following oxygen containing chemical species is toxic to human cells?
a. dihydrogen monoxide (water)
b. heme
c. triplet oxygen
d. singlet oxygen
ANS: D PTS: 1 REF: p. 3–4 BLM: Remember
7. There are three components required for the use of photodynamic therapy in the treatment of skin
cancer. Which of the following is NOT one of those components?
a. a photosensitizer
b. red light
c. lipoproteins
d. triplet oxygen
ANS: C PTS: 1 REF: p. 4 BLM: Remember
8. Which of the following techniques uses electromagnetic radiation to kill cancer cells?
a. spectroscopy
b. chromatography
c. chemotherapy
d. photodynamic therapy
ANS: D PTS: 1 REF: p. 4 BLM: Remember
9. The porphyrin ring in heme is bound to which metal?
a. iron
b. magnesium
c. cobalt
d. copper
ANS: A PTS: 1 REF: p. 4 BLM: Remember

10. The structure of the porphyrin ring matches which of the following chemical representations?
a. structure a
b. structure b
c. structure c
d. structure d
ANS: C PTS: 1 REF: p. 4 BLM: Remember
11. What porphyrin-containing substance that absorbs light and transfers energy is found in plants?
a. hemoglobin
b. Visudyne
c. Gavinone
d. chlorophyll
ANS: D PTS: 1 REF: p. 4 BLM: Remember
12. There are two different energy states for oxygen. Which of the following is the energy state for singlet
oxygen?
a. ground state
b. normal state
c. excited state
d. absorbed state
ANS: C PTS: 1 REF: p. 4 BLM: Remember

13. What do photosensitizers do?
a. They energize porphyrin.
b. They transfer energy to triplet oxygen and convert it to singlet oxygen.
c. They make cancer cells sensitive to light.
d. They convert singlet oxygen into triplet oxygen.
ANS: B PTS: 1 REF: p. 4 BLM: Remember
14. People with a medical disorder known as porphyria are required to avoid bright sunlight and wear
long-sleeve shirts, hats, and gloves. Considering the name of the disorder, which of the following
chemical substances would you expect to be involved in porphyria?
a. chlorophyll
b. hemoglobin
c. testosterone
d. pyran
ANS: B PTS: 1 REF: p. 4 BLM: Higher Order
15. Which of the following medical conditions is currently being treated by photodynamic therapy?
a. cataracts
b. macular degeneration
c. astigmatism
d. arthritis
ANS: B PTS: 1 REF: p. 5 BLM: Remember
16. Approximately how long does singlet oxygen exist?
a. 10–6 seconds
b. 10–3 seconds
c. 100 seconds
d. 101 seconds
ANS: A PTS: 1 REF: p. 5 BLM: Remember
17. Why is the location of a tumour important in determining whether photodynamic therapy (PDT) may
be an effective method of treatment?
a. PDT works only on certain types of tumours.
b. Photosensitizers will only go to certain locations in the body.
c. The red light from the laser cannot penetrate very far below the skin.
d. Triplet oxygen is found only in certain parts of the body.
ANS: C PTS: 1 REF: p. 5 BLM: Higher Order
18. What feature describes two molecules that are isomers?
a. They have the same number of protons but different number of neutrons.
b. They have the same molecular weight but different types of atoms.
c. They have the same chemical reactivity in solution but different in the human body.
d. They have the same formula but different arrangement of atoms.
ANS: D PTS: 1 REF: p. 6 BLM: Remember

19. Research groups are trying to use the light-absorbing ability of porphyrins to do many new things.
Which one of the following research projects involves the use of porphyrins?
a. treatment of age-related macular degeneration
b. generation of heat resistant crops
c. conversion of nitrogen gas to ammonia
d. transmutation of bismuth into gold
ANS: C PTS: 1 REF: p. 6 BLM: Remember
20. Why would a compound that causes seed germination be useful to the agricultural industry?
a. Plants could be grown at reclaimed mine sites.
b. Endangered native species of plants could be regenerated.
c. Weeds could be made to germinate before a crop is sown.
d. Seeds could be kept dormant until planting is convenient for the farmer.
ANS: C PTS: 1 REF: p. 7 BLM: Higher Order
21. What is NOT a possible source of natural products?
a. flowers
b. insects
c. minerals
d. animals
ANS: C PTS: 1 REF: p. 7 BLM: Higher Order
22. Seeds can remain dormant until suitable for the growth of a plant. Which of the following
environmental conditions is necessary for seed germination?
a. good soil
b. sufficient moisture
c. low levels of weeds
d. low temperatures
ANS: B PTS: 1 REF: p. 7 BLM: Remember
23. What is a bioactive compound?
a. a compound that is found in biological systems
b. a compound that is produced by a living organism
c. a compound that is used to test for biological activity
d. a compound that has an effect on living tissue
ANS: D PTS: 1 REF: p. 7–10 BLM: Higher Order
24. What reproducible source of smoke did Flematti use for his experiments?
a. smoke from a forest fire
b. smoke from a bush fire
c. smoke from filter paper
d. smoke from leaf lettuce
ANS: C PTS: 1 REF: p. 8 BLM: Remember

25. What is a bioassay?
a. a measure of optical activity
b. a test for biological activity
c. an extraction technique
d. a type of spectroscopy
ANS: B PTS: 1 REF: p. 8 BLM: Remember
26. Which of the following would NOT be appropriate to use in a bioassay?
a. mice
b. insects
c. fish
d. fossils
ANS: D PTS: 1 REF: p. 8 BLM: Higher Order
27. Which of the following is NOT a structural determination method?
a. mass spectroscopy
b. nuclear magnetic resonance
c. x-ray crystallography
d. bioassay
ANS: D PTS: 1 REF: p. 8 BLM: Remember
28. Why did Flematti and his co-workers burn filter paper?
a. to obtain a reproducible source of smoke water
b. because it is illegal to start forest or bush fires
c. to calculate the amount of smoke produced per gram
d. because they did not have a reliable source of wood
ANS: A PTS: 1 REF: p. 8 BLM: Higher Order
29. When trying to determine the structure of a compound, how does knowledge of the molecular weight
help?
a. It reveals which isotopes are present in the molecule.
b. It tells you about the solubility of the molecule.
c. It is needed to determine the molecular formula.
d. It is equal to the number of carbons and hydrogens in the molecule.
ANS: C PTS: 1 REF: p. 9 BLM: Higher Order
30. Extraction techniques are based on differences in physical or chemical properties. Which physical
property was used in the extraction of Gavinone?
a. solubility
b. colour
c. odour
d. viscosity
ANS: A PTS: 1 REF: p. 9 BLM: Remember

31. Many organic compounds are detected in the gas chromatogram of smoke. Which of the following
processes should be used to isolate one compound?
a. separate the mixture into smaller groups by extraction
b. run the gas chromatogram with smaller amounts of smoke
c. use a mass spectrometer to determine the molar mass of the mixture
d. separate the mixture into smaller groups using a bioassay
ANS: A PTS: 1 REF: p. 9 BLM: Higher Order
32. What is a major difference between Gavinone and the model compound shown below?
a. the location of the CH3
b. the number of atoms
c. the size of the rings
d. the way the rings are connected
ANS: A PTS: 1 REF: p. 10 BLM: Higher Order
33. Why was the name “Gavinone” problematic?
a. It did not give enough information about the structure.
b. It is not appropriate to name compounds after people.
c. It wasn’t considered to be sufficiently formal.
d. It implied a functional group not present in the structure.
ANS: D PTS: 1 REF: p. 10 BLM: Remember
34. The systematic name for “Gavinone” is based on rules from what organization?
a. IUPAC: International Union of Pure and Applied Chemistry
b. USFDA: United States Food and Drug Administration
c. CSC: Canadian Society for Chemistry
d. RACI: Royal Australian Chemical Institute
ANS: A PTS: 1 REF: p. 10 BLM: Remember
35. The seed germination trigger compound karrikinolide was originally named after which scientist?
a. Gavin Flematti
b. Emilio Ghisalberti
c. David Dolphin
d. Guilio Natta
ANS: A PTS: 1 REF: p. 11 BLM: Remember

36. Which of the following is the name for the class of compounds that trigger germination?
a. gavinones
b. karrikinolides
c. KAR1
d. porphyrins
ANS: B PTS: 1 REF: p. 11 BLM: Remember
37. What do the Northern Lights or Southern Lights and “neon” lights have in common?
a. being caused by magnetic flux
b. atoms in the ground state
c. atoms in the excited state
d. their colour
ANS: C PTS: 1 REF: p. 12 BLM: Higher Order
38. Why is it sometimes preferable in research to use a pure synthetic substance rather than the natural
product?
a. It is easier to obtain the pure substance.
b. Research wastes natural products that we should be conserving.
c. Natural products are not better than synthetic substances.
d. Natural products can contain toxic components.
ANS: D PTS: 1 REF: p. 13 BLM: Higher Order
39. What is the definition of an organic compound?
a. a compound containing no pesticides or herbicides
b. a compound containing carbon
c. a compound not made synthetically
d. a compound that occurs only in nature
ANS: B PTS: 1 REF: p. 13 BLM: Higher Order
40. What approach to learning was illustrated in the stories of Gavinone and photodynamic therapy?
a. the discovery method
b. the investigative method
c. the scientific method
d. the Suzuki method
ANS: C PTS: 1 REF: p. 13 BLM: Higher Order

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