Photosynthesis & Cellular Respiration

1. Photosynthesis & Cellular Respiration Hot Seat

2. Hot Seat Instructions • You are competing against classmates in your row (across the classroom). The hot seat is the seat in each row closest to the outside windows. • Your answer must be written and you must stop writing when the teacher says, “pencils down” • After hearing the correct answer you will check your answer with the person to your left and the person to your right. • If your answer is correct and the person to your right answered incorrectly you move into their seat (towards the hot seat) and they will move into yours. • If your answer is incorrect and the person to your left answered correctly, you move into their seat (away from the hot seat) and they will move into yours. • Remember you may only move one seat at a time! If you get it right and two people in front of your get it wrong you still can only move one seat!

3. What is the monomer of carbohydrates? • Monosaccharide

4. What is the function of carbohydrates? • They are the primary energy source for living organisms.

5. Starch is made up of… • A chain of glucose molecules.

6. Which of these equations best summarize photosynthesis? • C6H12O6 + 6 O2 —> 6 CO2 + 12 H2O • C6H12O6 + 6 O2 —> 6 CO2 + 6 H2O + Energy • 6 CO2 + 6 O2 —> C6H12O6 + 6 H2O • 6 CO2 + 6 H2O —> C6H12O6 + 6 O2

7. Where does most of a plant’s mass come from? • from the soil • from carbon dioxide from the air and water from the soil • from nutrients in the soil • from water

8. At midday, what is happening in the leaf of a plant? • Respiration • Photosynthesis • Mainly photosynthesis and some respiration • None of the above

9. At midnight, what is happening in the leaf of a plant • Respiration • Photosynthesis • Photosynthesis and respiration • None of the above

10. In which organisms does photosynthesis happen? • Plants • Animals • Plants and animals • None of the above

11. Which of the following need oxygen to survive? • Plants • Animals • Plants and animals • None of the above

12. Which of these best explains the difference between the way animals and plants exchange gases with their environments? • Animals use only photosynthesis, while plants use both photosynthesis and respiration. • Animals use only respiration, while plants use both photosynthesis and respiration. • Animals use both photosynthesis and respiration, while plants use only respiration. • Animals use both photosynthesis and respiration, while plants use only photosynthesis.

13. Which of the following i the source of the carbon in sugar produced during photosynthesis? • Carbon dioxide • Water • Oxygen • ATP

14. Most animals make energy available for cell activity by transferring the energy of glucose to ATP. This process occurs during • Anaerobic respiration only • Aerobic respiration only • Both aerobic and anaerobic respiration • Neither aerobic and anaerobic respiration

15. In animal cells, the energy to convert ADP to ATP comes directly from • hormones • Sunlight • food • heat

16. The organelles in which most of the reactions of aerobic cellular respiration take place are the • ribosomes • chloroplasts • lysosomes • mitochondria

17. Which product is of the greatest benefit to the organisms in which cellular respiration occurs? • glucose • carbon dioxides • ATP molecules • water molecules

18. A plant is placed in a closed chamber in the light. Why is the [CO2] decreasing? • The cells of the plant are removing CO2 from the environment as they perform photosynthesis.

19. An animal is placed in a closed chamber in the light. Why is the [CO2] increasing? • The cells of the animal are adding CO2 to the environment as they perform cellular respiration.

20. A plant and animal are placed in a closed chamber in the light. Why is the [CO2] staying the same? • The CO2 produced by the animal during cellular respiration is used by the plant to perform photosynthesis.

21. When during a 24 hour period does a plant perform cellular respiration ? • All the time

22. A plant is placed in a closed chamber in the dark. Why is the [CO2] increasing? • The plant is performing cellular respiration and adding CO2 to the environment.

23. An animal is placed in a closed chamber in the dark. Does light intensity affect the rate of cellular respiration? • No, light is not necessary for cellular respiration.

24. A plant and animal are placed in a closed chamber in the dark. Why is the CO2 concentration increasing? • Both the plant and animal are performing cellular respiration and adding CO2 to the environment.

25. By which process are carbon dioxide and water converted to carbohydrates? • transpiration • respiration • fermentation • photosynthesis

26. The conversion of light energy into chemical energy occurs within the cells of • molds • yeasts • algae • grasshoppers

27. Glucose molecules may be stored in plants in the form of • oxygen • starch • Nucleic acids • Amino acids

28. The basic raw materials (inputs) for photosynthesis are • Water and carbon dioxides • Oxygen and water • Sugar and carbon dioxide • Carbon dioxide and oxygen

29. Which word equation represents the process of photosynthesis? • Carbon dioxide + water  glucose + oxygen • Glucose  alcohol + carbon dioxide • Maltose + water  glucose + glucose • Glucose + oxygen  carbon dioxide + water

30. In terms of nutrition, the functional difference between animals and plants is that green plants are able to • Synthesize (make) glucose • Break down carbohydrates • Carry on aerobic respiration • Form ATP molecules

31. The production of energy-rich ATP molecules is the direct result of • Recycling light energy to be used in the process of photosynthesis • Releasing the stored energy of carbohydrates by the process of cellular respiration • Breaking down starch by the process of digestion • Copying coded information during the process of protein synthesis

32. The green aquatic plant represented in the diagram below was expose to light for several hours. Which gas would most likely be found in the bubbles? • oxygen • nitrogen • Ozone • carbon dioxide

33.  Energy is released from ATP when • phosphate group is added • Adenine bonds to ribose • ATP is exposed to sunlight • A phosphate group is removed

34. If carbon dioxide is removed from a plant’s environment, what would you expect to happen to the plant’s production of high-energy sugars? • More sugars will be produced • Fewer sugars will be produced • The same number of sugars will be produced but without carbon dioxide • Carbon dioxide does not affect the production of high-energy sugars in plants.

35. Muscle cells in athletes often have more mitochondria than muscles cells in nonathletes. Based on this observation, it can be inferred that the muscle cells in athletes • Have a smaller demand for cell proteins than the muscle cells of nonathletes • Reproduce less frequently than the muscle cells of nonathletes • Have nuclei containing more DNA than nuclei in the muscle cells of nonathletes • Have a greater demand for energy than the muscle cells of nonathletes

36. An experimental setup is shown below. Which hypothesis would most likely be tested using this setup? • Light is needed for the process of reproduction • Glucose is not synthesized by plants in the dark • Protein synthesis takes place in leaves • Plants need fertilizers for proper growth

37. Which cell organelle is the site of photosynthesis? • Chloroplast

38. What is the purpose of photosynthesis? • To make glucose or • to convert light energy into chemical energy

39. What is the chemical formula for glucose? • C6H12O6

40. Where is the energy stored in a molecule of ATP? • In the bond between the phosphates

41. What are the reactants of Photosynthesis • 6CO2 + 6H2O

42. What are the products of Photosynthesis • 6O2 + C6H12O6

43. Where do plants obtain the carbon necessary for growth? • From Carbon Dioxide (CO2)

44. Where in a cell does cellular respiration occur? • Mitochondria

45. What is the purpose of cellular respiration? • Release energy stored in glucose to generate ATP!

46. What are the products of Cellular Respiration • 6CO2 + 6H2O

47. What are the reactants of Cellular Respiration • 6O2 + C6H12O6

48. Under what condition would your muscle cells perform lactic acid fermentation? • A shortage of Oxygen (O2)

49. Which type of respiration generates more ATP, aerobic or anaerobic? • Aerobic – 36 ATP per glucose molecule! • Anaerobic – Only 2 ATP per glucose molecule

50. In terms of oxygen, what is the difference between anaerobic respiration and aerobic respiration? • Aerobic respiration uses oxygen • Anaerobic respiration do not use oxygen