Cellular Respiration Practice Test Press F5 Use the arrow buttons to navigate

1. Write the equation for cellular respiration in words and in symbols. Words Glucose + oxygen  carbon dioxide +water Symbols C 6 H 12 O 6 + O 2  CO 2 + H 2 O

2. Write the equation for photosynthesis in words and in symbols. Words Water + carbon dioxide  glucose + oxygen Symbols CO 2 + H 2 O  C 6 H 12 O 6 + O 2

3. In what part of the cell does photosynthesis take place? In a structure called a chloroplast Only plants (and other autotrophs) have chloroplasts)

4. In what part of the cell does cellular respiration take place? Cellular respiration starts just outside of the mitochondria in the cytoplasm of the cell However, most of cellular respiration takes place inside of the mitochondria

5. What does the term aerobic mean? Aerobic means a part of the process that requires oxygen

6. Which produces more ATP: glycolysis (which is anaerobic) or aerobic cellular respiration? Aerobic cellular respiration Aerobic produces 36 ATP, while glycolysis only produces 2

7. What type of energy transformation takes place in photosynthesis? Photosynthesis ultimately transforms light energy into chemical energy, which is stored in the bonds of glucose

8. What type of energy transformation takes place during cellular respiration? During cellular respiration, chemical energy in the bonds of glucose is transformed into chemical energy in the bonds of ATP

9. What is the purpose of cellular respiration? Cellular respiration is used to transform the energy in glucose into the energy of ATP, which is the form of energy that your cells can actually use.

10. Do all organisms use chloroplasts? No, only organisms that capture light energy need chloroplasts

11. Do all organisms use photosynthesis? No, only organisms that capture light energy to make their own food use photosynthesis

12. Do all organisms use cellular respiration? Yes. Even plants that make their own food (glucose) have to use cellular respiration to turn the energy in the food they make into ATP that their cells can use Of course, heterotrophs like animals and fungi use cellular respiration also

13. Do all organisms have mitochondria? All Eukaryotes (plants, animals, fungi, etc) have mitochondria because they use the process of cellular respiration Prokaryotes (like bacteria) don’t have organelles like mitochondria, so they use a different process for energy transformation

14. What is the chemical formula for glucose? C 6 H 12 O 6

15. Glucose is an example of what type of macromolecule? Carbohydrate Glucose is often called a sugar (or monosaccharide), which is a type of carbohydrate

16. Which produces the most ATP molecules for the cell to use: Photosynthesis, Glycolysis, or Aerobic Cellular Respiration? Aerobic Cellular Respiration produces 36 ATP Glycolysis produces 2 ATP Photosynthesis produces 0 ATP because all of the ATP it makes during the light- dependent reaction are used to produce the bonds in glucose during the light- independent reaction

17. Does cellular respiration create energy? No Energy is not created or destroyed The amount of energy stays the same, it is just transformed from the chemical bonds of glucose to the chemical bonds of ATP

18. Why are the processes of photosynthesis and cellular respiration considered to be directly related? The products of one reaction are used as the reactants of the other reaction In other words, the things made by photosynthesis are used for cellular respiration, and the things made by cellular respiration are used for photosynthesis

19. Why is photosynthesis considered to be a method for energy capture and storage? Light energy is captured by the chloroplasts and then eventually stored in the bonds of the glucose

20. Why is cellular respiration considered to be a form of energy release? It releases the energy in the glucose bonds and turns it into energy in the form of ATP for the cells to actually use

21. When Bromothymol Blue turns from blue to green/yellow, what product of photosynthesis is present? Bromothymol Blue turns from blue to green/yellow when in the presence of carbon dioxide Carbon dioxide is released by cellular respiration due to the break down of glucose

22. How did we measure the amount of carbon dioxide present in the Bromothymol Blue? We counted the number of drops of NaOH needed to turn the Bromothymol Blue back to its orignial color The more drops needed, the more carbon dioxide present The more carbon dioxide present, the more glucose that was burned (meaning the rate of cellular respiration was high)

23. What was the relationship between heart rate and carbon dioxide production? Exercise made the heart rate increase and required a lot of energy The energy came from cellular respiration (the breakdown of glucose) The higher the heart rate, the more carbon dioxide that was being produced

24. Do plants produce carbon dioxide? They consume carbon dioxide This means the levels of carbon dioxide would be lower in water that had plants in it They produce small amounts of carbon dioxide in the dark when they are using the process of cellular respiration to break down the glucose they made during photosynthesis

25. Do animals produce carbon dioxide? Yes, they produce carbon dioxide when they are breaking down glucose using the process of cellular respiration That means water with animals in it will have increased levels of carbon dioxide (as long as they have glucose to break down)