Chapter 6


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Chapter 6

  1. 1. Mader's Concepts in Biology, First Edition Copyright © The McGraw-Hill Companies, InC) Permission required for reproduction or display. Sylvia S. Mader Chapter 6
  2. 2. Question 1 <ul><li>Which component of white light is not necessary for photosynthesis? </li></ul><ul><li>A. red </li></ul><ul><li>B. orange </li></ul><ul><li>C. green </li></ul><ul><li>D. blue </li></ul><ul><li>E. yellow </li></ul>
  3. 3. Question 2 <ul><li>Which of the following statements is not true of autotrophs? </li></ul><ul><li>A. they must take in organic matter to make energy </li></ul><ul><li>B. they produce their own food </li></ul><ul><li>C. plants are autotrophs </li></ul><ul><li>D. they convert light energy into chemical energy </li></ul><ul><li>E. cyanobacteria are autotrophs </li></ul>
  4. 4. Question 3 <ul><li>Autotrophs produce only enough carbohydrates to feed themselves. </li></ul><ul><li>A. true </li></ul><ul><li>B. false </li></ul>
  5. 5. Question 4 <ul><li>A biologist wants to study organisms which are heterotrophic. Which of the following organisms would he or she be most interested in studying? </li></ul><ul><li>A. producers </li></ul><ul><li>B. autotrophs </li></ul><ul><li>C. plants </li></ul><ul><li>D. algae </li></ul><ul><li>E. consumers </li></ul>
  6. 6. Question 5 <ul><li>Which of the following organisms use molecules produced in photosynthesis? </li></ul><ul><li>A. autotrophs only </li></ul><ul><li>B. heterotrophs only </li></ul><ul><li>C. heterotrophs and autotrophs </li></ul><ul><li>D. only plants and algae </li></ul><ul><li>E. only animals </li></ul>
  7. 7. Question 6 <ul><li>Which of the following plant tissues is specialized for photosynthesis? </li></ul><ul><li>A. the cuticle </li></ul><ul><li>B. the upper epidermis </li></ul><ul><li>C. the lower epidermis </li></ul><ul><li>D. the mesophyll </li></ul><ul><li>E. the vascular tissue </li></ul>
  8. 8. Question 7 <ul><li>If the stomata of the plant were blocked up, what would the plant be unable to do? </li></ul><ul><li>A. absorb water </li></ul><ul><li>B. exchange gases </li></ul><ul><li>C. give off liquid water </li></ul><ul><li>D. absorb sunlight </li></ul><ul><li>E. make chlorophyll </li></ul>
  9. 9. Question 8 <ul><li>Flattened sacs within the chloroplast are known as: </li></ul><ul><li>A. chlorophyll </li></ul><ul><li>B. stomata </li></ul><ul><li>C. thylakoids </li></ul><ul><li>D. stroma </li></ul><ul><li>E. mesophyll </li></ul>
  10. 10. Question 9 <ul><li>What is the significance of the stoma of the chloroplast? </li></ul><ul><li>A. it contains metabolic enzymes used to grab carbon dioxide </li></ul><ul><li>B. it is where the pigment is stored </li></ul><ul><li>C. it is where oxygen leaves the plant </li></ul><ul><li>D. it helps plants absorb water </li></ul><ul><li>E. it is where carbon dioxide enters the leaf </li></ul>
  11. 11. Question 10 <ul><li>Where does the light reaction begin in photosynthesis? </li></ul><ul><li>A. the electron transport chain </li></ul><ul><li>B. photosystem I </li></ul><ul><li>C. the Calvin cycle </li></ul><ul><li>D. photo system II </li></ul><ul><li>E. the electron acceptor </li></ul>
  12. 12. Question 11 <ul><li>Which of the following have the shortest wavelength? </li></ul><ul><li>A. radio waves </li></ul><ul><li>B. X rays </li></ul><ul><li>C. microwaves </li></ul><ul><li>D. gamma rays </li></ul><ul><li>E. ultraviolet rays </li></ul>
  13. 13. Question 12 <ul><li>The substance that initially traps solar energy in photosynthesis is: </li></ul><ul><li>A. chlorophyll </li></ul><ul><li>B. RuBP </li></ul><ul><li>C. water </li></ul><ul><li>D. glucose </li></ul><ul><li>E. pyruvate </li></ul>
  14. 14. Question 13 <ul><li>The chief energy source for most organisms is glucose. </li></ul><ul><li>A. true </li></ul><ul><li>B. false </li></ul>
  15. 15. Question 14 <ul><li>If a molecule has been reduced, which of the following statements would be true? </li></ul><ul><li>A. it has lost electrons </li></ul><ul><li>B. the electrons have stayed the same </li></ul><ul><li>C. it has lost oxygen </li></ul><ul><li>D. it has gained electrons </li></ul><ul><li>E. it has gained oxygen </li></ul>
  16. 16. Question 15 <ul><li>During the process of photosynthesis, which of the following products are formed? </li></ul><ul><li>A. glucose and oxygen </li></ul><ul><li>B. glucose, water, and oxygen </li></ul><ul><li>C. glucose and water </li></ul><ul><li>D. glucose, water, and carbon dioxide </li></ul><ul><li>E. glucose and carbon dioxide </li></ul>
  17. 17. Question 16 <ul><li>Because oxidation and reduction go hand in hand, the entire reaction is called a synthesis reaction. </li></ul><ul><li>A. true </li></ul><ul><li>B. false </li></ul>
  18. 18. Question 17 <ul><li>A biologist is studying the raw materials that plants use to conduct photosynthesis. Which of the following molecules would he or she not be studying? </li></ul><ul><li>A. glucose and oxygen </li></ul><ul><li>B. carbon dioxide and glucose </li></ul><ul><li>C. carbon dioxide and water </li></ul><ul><li>D. carbon dioxide and oxygen </li></ul><ul><li>E. glucose and water </li></ul>
  19. 19. Question 18 <ul><li>Which of the following statements is untrue of the light reaction in photosynthesis? </li></ul><ul><li>A. it needs light to work </li></ul><ul><li>B. it occurs on the surface of the thylakoid membrane </li></ul><ul><li>C. it uses water and pigments </li></ul><ul><li>D. it happens in the chloroplast </li></ul><ul><li>E. it occurs in the stroma </li></ul>
  20. 20. Question 19 <ul><li>For the Calvin cycle to take place, which of the following must be added? </li></ul><ul><li>A. carbon dioxide </li></ul><ul><li>B. oxygen </li></ul><ul><li>C. light </li></ul><ul><li>D. water </li></ul><ul><li>E. glucose </li></ul>
  21. 21. Question 20 <ul><li>The reason that deciduous leaves turn colors of red and yellow in the fall is: </li></ul><ul><li>A. chlorophyll is converted into bright carotenoid pigments </li></ul><ul><li>B. when chlorophyll breaks down, bright pigments (already there) show through </li></ul><ul><li>C. it is a chemical reaction involving the formation of ice crystals </li></ul><ul><li>D. bright pigments are shifted up from the roots while chlorophyll moves down </li></ul><ul><li>E. red and yellow pigments can only be made during cool temperatures </li></ul>