SCI 230 Week 3 Assignment

SCI 230 Associate Program Material

Cell Energy Worksheet

Answer the following questions:

Cellular respiration: 

•	What is cellular respiration and what are its three stages? 

	

•	What is the role of glycolysis? Include the reactants and the products. Where does it occur?



•	What is the role of the citric acid cycle? Include the reactants and the products. Where does it occur?



•	What is the role of the electron transport system? Include the reactants and the products.  Where does it occur?

Photosynthesis: 

•	What is the overall goal of photosynthesis?



•	Because photosynthesis only occurs in plants, why is it essential to animal life?



•	What is the role of the light reactions? Include the reactants and the products. Where does it occur?



•	What is the role of the Calvin cycle? Include the reactants and the products. Where does it occur?

Summary:

•	Explain how photosynthesis and cellular respiration are linked within ecosystems. 



•	Visit the NASA website  (http://data.giss.nasa.gov/gistemp/graphs_v3/)  and research global temperature changes. How has global warming affected overall temperatures? What effects do cellular respiration and photosynthesis have on global warming?

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