Cellular Respiration Cellular Respiration Practice TestPractice TestPress F5Use the arrow buttons to navigate

1. 1. Write the equation for cellular

respiration in words and in symbols.

WordsGlucose + oxygen carbon dioxide

+water

SymbolsC6H12O6 + O2 CO2 + H2O

2. 2. Write the equation for

photosynthesis in words and in symbols.

WordsWater + carbon dioxide glucose +

oxygen

SymbolsCO2 + H2O C6H12O6 + O2

3. 3. In what part of the cell does

photosynthesis take place?

In a structure called a chloroplastOnly plants (and other

autotrophs) have chloroplasts)

4. 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. 5. What does the term aerobic

mean?

Aerobic means a part of the process that requires oxygen

6. 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. 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. 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. 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.

10.10.Do all organisms use

chloroplasts?

No, only organisms that capture light energy need chloroplasts

11.11.Do all organisms use

photosynthesis?

No, only organisms that capture light energy to make their own food use photosynthesis

12.12.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. 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. 14. What is the chemical formula for

glucose?

C6H12O6

15.15.Glucose is an example of what

type of macromolecule?

CarbohydrateGlucose is often called a sugar

(or monosaccharide), which is a type of carbohydrate

16. 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 ATPPhotosynthesis 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

17.17.Does cellular respiration create

energy?

NoEnergy is not created or destroyedThe amount of energy stays the

same, it is just transformed from the chemical bonds of glucose to the chemical bonds of ATP

18. 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. 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. 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. 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. 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. 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. 24. Do plants produce carbon dioxide?

They consume carbon dioxideThis 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

25.25.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)