Γρεεκ Αμεριχανσ (Greek Americans
31 Pages
English
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Γρεεκ Αμεριχανσ (Greek Americans

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Downloading requires you to have access to the YouScribe library
Learn all about the services we offer
31 Pages
English

Description

  • leçon - matière potentielle : scriptures
Γρεεκ Αµεριχανσ (Greek Americans) Spring Moffitt Culture in Health Care Tuesday 12:30pm Fall 2004 Greek Americans by Spring Moffitt 1
  • wedding ceremony
  • blood pressure
  • woman from an older generation
  • wedding ring on the right hand
  • couple
  • food
  • woman
  • family
  • health care practices

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Reads 72
Language English

Exrait

Name: ________________________ Class: ___________________ Date: __________ ID: A
Biology 101 Lecture Exam 3 Question Pool
Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
____ 1. Plants need which of the following to carry on photosynthesis?
a. H O2
b. CO2
c. O2
d. lipid
e. H O and CO2 2.
____ 2. The text describes a long-lasting drought in the Midwestern United States. The significance of this discussion is
anchored in the concept that
a. all organisms respond to environmental conditions.
b. the balance of payments and the responding general economic conditions can be affected
by a downturn in agriculture.
c. living organisms require food if they are going to survive.
d. water is only one of a great number of environmental factors that affect living organisms.
e. starvation is one of the common forms of death in foreign countries.
____ 3. The ultimate source for food is
a. the grocery store.
b. the soil.
c. certain green plants.
d. the sun.
e. various metabolic pathways found in all living organisms.
____ 4. The conversion of solar energy to chemical energy occurs during
a. glycolysis.
b. photosynthesis.
c. respiration.
d. fermentation.
e. chemosynthesis.
____ 5. Chemosynthetic bacteria may use which element as a hydrogen donor instead of water?
a. potassium dihydrogen phosphate
b. sulfur
c. hydrogen sulfate
d. hydrogen chloride
e. hydrogen peroxide
____ 6. Chemosynthetic forms of life
a. derive energy from sunlight.
b. derive energy by stripping hydrogen from inorganic compounds such as sulfur
compounds.
c. are anaerobic forms that live in the dark.
d. are one form of heterotrophic life.
e. are unable to generate enough energy to synthesize complex food-storage molecules.
1Name: ________________________ ID: A
____ 7. Organisms that derive their chemical energy from the process of chemosynthesis are classified as
a. autotrophs.
b. parasites.
c. heterotrophs.
d. saprophytes.
e. mutualists.
____ 8. Heterotrophs are
a. self-feeding.
b. independent of other forms of life for sustenance.
c. unable to participate in the web of life.
d. animals only.
e. none of these
____ 9. Animals obtain their energy and carbon from
a. the sun and atmosphere directly.
b. chemical compounds formed by autotrophs.
c. inorganic sources.
d. chemical compounds formed by autotrophs and inorganic sources.
e. the sun and atmosphere directly, chemical compounds formed by autotrophs, and
____ 10. The carbon source for organisms that derive their energy from photosynthesis is
a. carbon monoxide.
b. carbon dioxide.
c. hydrocarbons.
d. methane.
e. glucose.
____ 11. Most carbon enters the web of life through
a. chemosynthesis.
b. aerobic respiration.
c. anaerobic respiration.
d. photosynthesis.
e. both chemosynthesis and aerobic respiration.
____ 12. The oxygen released in photosynthesis comes from
a. carbon dioxide.
b. glucose.
c. ribulose bisphosphate.
d. water.
e. atmospheric oxygen.
____ 13. The internal membrane system of the chloroplast is called a
a. thylakoid.
b. stroma.
c. lamella.
d. mitochondrion.
e. tracheid.
____ 14. Which of the following is NOT associated with the light-dependent reactions?
a. ATP
b. thylakoids
c. chlorophyll
d. stroma
e. water
2Name: ________________________ ID: A
____ 15. Thylakoid disks are stacked in groups called
a. grana.
b. stroma.
c. lamellae.
d. cristae.
e. none of these
____ 16. Actual assembly of sugars during photosynthesis
a. occurs during light-independent reactions.
b. takes place in the stroma.
c. requires chlorophyll.
d. occurs during light-independent reactions and takes place in the stroma.
e. occurs during light-independent reactions, takes place in the stroma, and requires
chlorophyll.
____ 17. Which of the following statements is NOT true?
a. Photons are packages of solar energy.
b. The longer the wavelength of light, the more energy it has.
c. Chlorophyll absorbs energy from light.
d. Photons with different energy levels produce different colors.
e. Visible light is a very small portion of the electromagnetic spectrum.
____ 18. Which of the following statements about the electromagnetic spectrum is true?
a. Infrared energy is sufficient to produce ionization.
b. Infrared radiation has more energy than red radiation.
c. Visible light has more energy than ultraviolet radiation.
d. Chlorophyll absorbs some visible wavelengths, but not all.
e. Chloroplasts absorb all wavelengths of light equally.
____ 19. Which of the following colors of light has the greatest energy?
a. red
b. yellow
c. orange
d. blue
e. green
____ 20. When light excites chlorophyll, the chlorophyll molecule
a. changes to carotene.
b. becomes agitated and moves rapidly.
c. becomes radioactive.
d. absorbs the energy and moves an electron to a higher energy state.
e. becomes ionized.
____ 21. The first event of photosynthesis is the
a. hydrolysis of water.
b. synthesis of sugar.
c. transfer of an electron from chlorophyll.
d. manufacture of ATP.
e. synthesis of NADPH.
____ 22. When a molecule is excited by heat or light,
a. it may lose an electron.
b. it may gain an electron.
c. an electron from an inner energy level may move to another level.
d. an electron from an outer energy level may move to an inner level.
e. an electron may be ejected from the nucleus of the atom.
3Name: ________________________ ID: A
____ 23. The first event in photosynthesis is the
a. formation of phosphoglyceric acid.
b. donation of an electron from the photosystem to an acceptor.
c. fixation of carbon dioxide.
d. breakdown of the thylakoid membrane.
e. formation of phosphoglyceraldehyde.
____ 24. Chlorophyll reflects (does not absorb) which color of light?
a. red
b. yellow
c. orange
d. green
e. blue
____ 25. Carotenoid pigments reflect (do not absorb) which color of light?
a. red
b. yellow
c. orange
d. green
e. blue
____ 26. Which of the following choices is NOT true?
a. Carotenoid pigments use yellow and red light to carry on photosynthesis.
b. Carotenoids are accessory pigments that capture certain energy from light and transfer it
into chlorophyll.
c. The presence of carotenoid pigments in a leaf is masked by the presence of chlorophyll.
d. Carotenoid pigments absorb blue and violet wavelengths and reflect red, orange, and
yellow.
____ 27. Where in a plant cell is chlorophyll found?
a. on the outer chloroplast membrane
b. inside the mitochondria
c. in the stroma
d. in the thylakoids
e. none of these
____ 28. Photosystems are mainly
a. light-trapping molecules.
b. enzymes for splitting water.
c. clusters of ATP molecules.
d. sugar assembly sites.
____ 29. Which of the following is most descriptive of an electron transfer chain?
a. It generates energy from nothing.
b. It is a mechanism used by cells to dispose of unused electrons.
c. It utilizes ATP in the synthesis of nutrients.
d. It transfers energy, stepwise, from one compound to another.
e. It requires activation by sunlight.
____ 30. The photosystem with P700 is designated "I" (Roman numeral one) because
a. it is the first to react.
b. it is assumed to have evolved first.
c. it is primary.
d. a and b are correct
e. b and c are correct
4Name: ________________________ ID: A
____ 31. The cyclic pathway functions mainly to
a. fix CO .2
b. produce O .2
c. make ATP.
d. reduce NADP.
e. split H O.2
____ 32. In the cyclic pathway,
a. ATP alone forms.
b. ATP and NADPH form.
c. oxygen is a by-product.
d. water participates in the process.
e. two photosystems are involved.
____ 33. The final hydrogen acceptor in the noncyclic pathway of ATP formation is
a. FAD.
b. PGA.
+c. NADP .
d. FMN.
e. PEP.
+____ 34. The electrons that are passed to NADP during the noncyclic pathway were obtained from
a. chlorophyll.
b. CO .2
c. glucose.
d. sunlight.
e. ATP.
____ 35. An important electron and hydrogen acceptor in the noncyclic pathway is
+a. NADP .
b. ADP.
c. O .2
d. H O.2
e. none of these
____ 36. Photolysis involves
a. the cyclic pathway of ATP formation.
b. photosystem I.
c. carotenoid pigments.
d. the noncyclic pathway of ATP formation.
e. both the cyclic pathway of ATP formation and photosystem I.
____ 37. The products of the light-dependent reactions of photosynthesis
a. are used in the light-independent reactions.
b. are complex carbohydrates and proteins.
c. are stored in the vacuoles of the cell.
d. are oxygen and glucose.
e. are used in the light-independent reactions and are stored in the vacuoles of the cell.
____ 38. The enzymes associated with the light-dependent reactions of photosynthesis are located
a. on the outer membranes of the chloroplast.
b. in the liquid portion of the chloroplast.
c. on the thylakoid membrane.
d. throughout the cytoplasm.
e. on the plasma membrane.
5Name: ________________________ ID: A
____ 39. The light-dependent reactions of photosynthesis
a. involve photolysis of water.
b. occur in mitochondria.
c. consist of the fixation of carbon dioxide.
d. produce phosphoglyceric acid as their first stable compound.
e. none of these
____ 40. The products of the light-dependent reactions in photosynthesis
a. are complex carbohydrates.
b. are not used in the light-independent reactions.
c. include ATP molecules and oxygen.
d. are phosphoglyceraldehyde molecules that may be converted into glucose and/or ribulose
bisphosphate.
e. are complex carbohydrates and are phosphoglyceraldehyde molecules that may be
converted into glucose and/or ribulose bisphosphate.
____ 41. Plant cells produce one molecule of O2
a. by splitting carbon dioxide.
b. during respiration.
c. by splitting ribulose bisphosphate.
d. by splitting two molecules of water.
e. by breaking down glucose.
____ 42. In the noncyclic pathway of ATP formation, which event occurs last?
a. excitation of P700
b. photolysis of water
c. formation of NADPH
d. ATP synthesis
e. transfer of electron to P680
____ 43. The transition of the early earth's atmosphere from one rich in hydrogen to one rich in oxygen may be attributed
to
a. photolysis.
b. photophosphorylation.
c. cyclic AMP.
d. chlorophyll breakdown.
e. all of these
____ 44. If P700 were replaced by a molecule that merely trapped electrons,
a. photolysis would cease.
b. NADPH synthesis would stop.
c. ATP synthesis would continue.
d. photolysis would cease and NADPH synthesis would stop.
e. NADPH synthesis would stop and ATP synthesis would continue.
____ 45. In the noncyclic pathways,
a. there is a one-way flow of electrons from photosystem I to photosystem II.
b. ATP alone is produced.
c. hydrogen ions accumulate in the thylakoid compartments.
d. only electrons are transferred to hydrogen acceptors.
e. water is not involved in any of the reactions.
6Name: ________________________ ID: A
____ 46. Which of the following is formed last in the transfer of solar energy?
a. P680 molecules
b. electron transfer system
c. photosystem II
d. photosystem I
e. NADPH
____ 47. The chlorophyll molecules that give up electrons used in photosynthesis are
a. the chlorophyll molecules that receive the energy in sunlight.
b. the molecules that transfer energy from one chlorophyll molecule to another.
c. the chlorophyll molecules that respond to the longest wavelengths of light to which
chlorophyll is sensitive.
d. the chlorophyll molecules that are sensitive to the shortest, most energetic wavelengths of
light.
e. the chlorophyll acceptor molecules in the thylakoid membrane.
____ 48. Hydrogen ion flow in the thylakoid compartments
a. occurs between photosystems I and II.
b. is called the hydrogen transfer system.
c. provides energy to produce ATP molecules.
d. causes excitation of chlorophyll molecules.
e. requires the intermediary action of acceptor molecules.
____ 49. ATP is formed when __________ the thylakoid compartment.
a. hydrogen ions enter
b. electrons leave
c. hydrogen ions leave
d. electrons enter
e. water is split in
____ 50. The chemiosmotic model is based upon
a. the use of two photosystems in photosynthesis.
b. the idea that concentration and hydrogen ion gradients drive ATP production.
c. the cyclic pathway as the oldest method to produce ATP.
d. the use of light to split water molecules in the noncyclic pathway.
e. the polarity and high specific heat of water.
+____ 51. The concept that concentration differences in H and electric gradients across a membrane are responsible for
ATP formation is known as
a. the chemiosmotic model.
b. the photosystem mechanism.
c. the process of photolysis.
d. the electron transfer system.
e. the cyclic pathway.
____ 52. Which of the following is NOT one of the chemicals produced in the synthesis (light-independent) reactions?
a. NADPH
b. phosphoglyceric acid (PGA)
c. phosphoglyceraldehyde (PGAL)
d. glucose
e. ribulose bisphosphate
7Name: ________________________ ID: A
____ 53. All but which condition must be present for light-independent reactions to occur?
a. presence of carbon dioxide
b. exposure of the plant to light
c. presence of ribulose bisphosphate
d. presence of ATP and NADPH
e. presence of required enzymes
____ 54. The light-independent reactions were discovered by
a. M. D. Hatch.
b. Andrew Benson.
c. Melvin Calvin.
d. Robert Hill.
e. both Andrew Benson and Melvin Calvin.
____ 55. The first stable compound produced from CO in the light-independent reaction is2
a. phosphoglycerate (PGA).
b. ribulose bisphosphate (RuBP).
c. phosphoglyceraldehyde (PGAL).
d. glucose.
e. phosphoenol pyruvate.
____ 56. The carbon dioxide acceptor in the Calvin-Benson cycle is
a. phosphoglycerate (PGA).
b. ribulose bisphosphate (RuBP).
c. phosphoglyceraldehyde (PGAL).
d. glucose.
e. phosphoenol pyruvate.
____ 57. Which of the following chemicals has five carbon atoms?
a. phosphoglycerate (PGA)
b. ribulose bisphosphate (RuBP)
c. phosphoglyceraldehyde (PGAL)
d. glucose
e. phosphoenol pyruvate
____ 58. The light-independent reactions of photosynthesis
a. fix carbon dioxide.
b. involve the liberation of oxygen.
c. cannot occur in light.
d. are known as photolysis.
e. all of these
____ 59. For each six atoms of carbon dioxide fixed in the light-independent reaction, how many molecules of PGAL
(phosphoglyceraldehyde) are produced?
a. 2
b. 3
c. 6
d. 12
e. 15
8Name: ________________________ ID: A
____ 60. How many molecules of PGAL (phosphoglyceraldehyde) are used to regenerate the six molecules of RuBP
(ribulose bisphosphate)?
a. 3
b. 6
c. 10
d. 12
e. 18
____ 61. In the Calvin-Benson cycle, which of the following can donate phosphate?
a. NADPH
b. ATP
c. RuBP
d. ATP and RuBP only
e. NADPH, ATP, and RuBP.
____ 62. Which of the following chemicals has six carbon atoms?
a. phosphoglycerate (PGA)
b. ribulose bisphosphate (RuBP)
c. phosphoglyceraldehyde (PGAL)
d. glucose
e. oxaloacetate
____ 63. Which of the following chemicals has the most energy?
a. phosphoglycerate (PGA)
b. ribulose bisphosphate (RuBP)
c. phosphoglyceraldehyde (PGAL)
d. glucose
e. oxaloacetate
____ 64. In most complex plants, the excess glucose is stored as
a. glucose.
b. starch.
c. sucrose.
d. glycogen.
e. cellulose.
____ 65. Plants manufacture glucose
a. for exclusive use by animals.
b. to function as the beginning of more complex molecules.
c. as a by-product produced as the plant manufactures oxygen.
d. during the process known as photorespiration.
e. via the tricarboxylic acid cycle.
____ 66. Which of the following chemicals has four carbon atoms?
a. phosphoglycerate (PGA)
b. ribulose bisphosphate (RuBP)
c. phosphoglyceraldehyde (PGAL)
d. glucose
e. oxaloacetate
____ 67. Photosynthesis takes place in which of the following cells?
a. mesophyll
b. epidermal
c. sclerenchyma
d. xylem
e. phloem
9Name: ________________________ ID: A
____ 68. Which is a C plant?4
a. corn
b. pine
c. sugarcane
d. crabgrass
e. all except pine
____ 69. The C pathway involves4
a. RuBP.
b. FAD.
c. oxaloacetate.
d. ATP.
e. water.
____ 70. The process in which oxygen, not carbon dioxide, becomes attached to RuBP is
a. the Calvin-Benson cycle.
b. photolysis.
c. photophosphorylation.
d. chemiosmosis.
e. photorespiration.
____ 71. Which of the following would NOT be true of CAM plants?
a. fix carbon only once
b. live in desert environments
c. fix carbon mostly during the day
d. open stomata only at night
e. grow slowly
____ 72. Plants need which of the following to carry on photosynthesis?
a. carbon dioxide and water
b. nitrogen and hydrogen
c. oxygen and carbon dioxide
d. water and oxygen
e. ribose and carbon dioxide
____ 73. Four of the five answers listed below are heterotrophs. Select the exception.
a. fungus
b. carrot
c. earthworm
d. lobster
e. parasite
____ 74. Four of the five answers listed below are autotrophic. Select the exception.
a. self-nourishing organisms
b. organisms whose carbon source is CO2
c. chemosynthetic organisms
d. most bacteria
e. sulfur bacteria
____ 75. Four of the five answers listed below are part of the light-independent reactions. Select the exception.
a. water
b. carbon dioxide
c. ribulose bisphosphate
d. phosphoglyceraldehyde
e. phosphoglycerate
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