Cellular Respiration Reading

University:
University of North Texas
Course:
BIOL 1700 | Biology
Academic year:

2023
Views:

0

Pages:

1
Author:

Memer Godboi

Cellular Respiration Pre-Reading Photosynthesis occurs in the chloroplasts of plant cells. Cellular respiration occurs in the mitochondria of both plant AND animal cells. Photosynthesis and cellular respiration are connected through an important relationship. This relationship enables life to survive as we know it. The products of one process are the reactants (ingredients) of the other. Notice that the equation for cellular respiration is the direct opposite of photosynthesis:   Cellular Respiration: C6H12O6 + 6O2 → 6CO2 + 6H2O + ATP Photosynthesis: Sun’s energy + 6CO2 + 6H2O → C6H12O6+ 6O2 Photosynthesis makes the glucose (sugar) that is used in cellular respiration to make ATP (energy). The glucose is then turned back into carbon dioxide, which is used in photosynthesis. While water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water. While photosynthesis requires carbon dioxide and releases oxygen, cellular respiration requires oxygen and releases carbon dioxide. It is the released oxygen that is used by us and most other organisms for cellular respiration. We breathe in that oxygen, which is carried through our blood to all our cells. In our cells, oxygen allows cellular respiration to proceed. Cellular respiration works best in the presence of oxygen. Without oxygen, much less ATP (energy) would be produced. Cellular respiration and photosynthesis form an important cycle. While cellular respiration releases carbon dioxide into the environment, photosynthesis pulls carbon dioxide out of the atmosphere. The exchange of carbon dioxide and oxygen during photosynthesis (Figure below) and cellular respiration worldwide helps to keep oxygen and carbon dioxide at stable levels. Cellular Respiration Reading Questions Use the reading and diagram on the bottom flip to complete this page. 1. 2. 3. 4. Where does photosynthesis occur? Where does cellular respiration occur? Glucose is another name for ______________________ Photosynthesis and cellular respiration form direct ___________________ reactions. 5. List two of the reactants (ingredients) on the left side of the cellular respiration equation. _____________________ & ______________________ 6. What gas do we (animals) breathe in? 7. Why do we breathe in that gas? _____________________________________________ 8. List two products on the right side of the cellular respiration equation. _____________________ & ______________________ 9. The exchange of carbon dioxide and oxygen during photosynthesis and cellular respiration helps to keep oxygen and carbon dioxide at _________________________________________. 10. What are the similarities / differences in Photosynthesis and cellular respiration? Construct a Venn diagram with 3 differences (3 unique characteristics of each) and 3 similarities.

Cellular Respiration Reading

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