Pogil Photosynthesis and Respiration

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In what cell organelle does photosynthesis occur?


What are the three reactants needed for photosynthesis?

CO2, H2O, energy

What are two products of photosynthesis?

O2, C6H12O6

In what cell organelle does cellular respiration occur?


What are the two reactants needed for cellular respiration?

C6H12O6 and O2

What are the three products of cellular respiration?

CO2, H2O, energy

What four substances are recycled during photosynthesis and respiration?

CO2, H2O, C6H12O6, energy

What is the one component in photosynthesis that is not recycled and must be constantly available?

sunlight energy

Are chloroplasts found in most plant cells? Explain.

yes because plant cells carry out photosynthesis

Are mitochondria found in most plant cells? Explain.

yes because all plant cells carry out cellular respiration

Are chloroplasts found in animal cells? Explain.

no because animals do not go through photosynthesis

Are mitochondria found in animal cells? Explain.

yes because animals go through cellular respiration

Write a grammatically correct sentence that compares the reactants and products of photosynthesis with the reactants and products of respiration.

the reactants needed for respiration are produced during the photosynthesis process, while the products of the respiration process are used during photosynthesis

"Plants can survive on their own, because they make their own food. Animals can’t survive on their own but need plants for survival." Do you agree with this statement? Why or why not?

yes because plants go through photosynthesis and cellular respiration, but animals are only capable of cellular respiration, not photosynthesis

In the Model 2 diagram, place a green star by each process (A,B,C, or D) that represents photosynthesis, and a red star by each process (A,B,C, or D) that represents cellular respiration.

red star next to A,B, and C green star next to D

Write and label equations for cellular respiration and photosynthesis below. Circle the carbon dioxide in each. If you need help, see Model 1.

photosynthesis: 6CO2+6H2O+energy–> 6O2+C6H12O6 respiration: 6O2+C6H12O6–> 6CO2+6H2O

When matter form plants and animals decay (rot), microorganisms responsible for the decomposition process respire. Knowing this information, do you need to add any red stars to Model 2? Explain and add the stars if needed.

there should be a red star on A,B, and C because CO2 is being added into the atmosphere

List any chemical processes other than photosynthesis and respiration that are taking place in Model 2.

fossil fuel formation and combustion

Are any of your answers from Question 16 due to human activity? Explain.

yes. bother because humans go through processes to require it

Ignoring the human actions of auto and factory emissions, what generalization can you make about the balance of the carbon dioxide in Model 2 over a long period of time?

over a long period of time, the carbon dioxide will balance out without human activities. human activities are the cause of the overproduction of carbon dioxide

How would the burning of fossil fuels upset the balance of the carbon dioxide cycle?

the burning of fossil fuels would increase the amount of carbon dioxide

Deforestation is another example of human activities that affect the carbon dioxide cycle. Explain how the cutting down and burning of trees would affect this cycle.

trees produce oxygen has that human need ti breathe with. if the oxygen levels decrease, then the output of carbon dioxide also decreases.

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