1 What is the chemical equation for photosynthesis? Label which are reactants & products. 2 Where does each reactant of photosynthesis come from? a b. 3 Which 2 products of photosynthesis are reactants in aerobic respiration? a b 4 What are the two types of reactions in photosynthesis? Use the terminology found in your textbook.

Human Anatomy & Physiology (11th Edition)
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Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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### Photosynthesis Educational Resource

#### Calvin Cycle Worksheet

**13.** Draw the complete pathway of the Calvin cycle reactions. Indicate where the investment of ATP, CO₂, and NADPH come into the cycle.

**14.** What is the enzyme that “fixes” carbon in the Calvin cycle?

**15.** What environmental input is necessary for the Calvin cycle reactions?

**16.** What is regenerated in the Calvin cycle reactions?

**17.** What is the primary product of the Calvin cycle reactions?

**18.** The carbons for the product above come from

---

### Additional Photosynthesis Context

**19.** In most plants, a buildup of oxygen occurs when [stomata] are closed.  
When oxygen rises in a plant, it combines with the enzyme [RuBisCO].  
This process is called [photorespiration].

**20.** Did the Calvin cycle reactions evolve when the concentration of atmospheric oxygen on earth was low or high?

**21.** What spatial and/or temporal adaptations allow C₄ and CAM plants to survive arid (dry) conditions better than C₃ plants?

- **a. C₄:**  

- **b. CAM:**  

---

This worksheet encourages students to explore the intricate details of the Calvin cycle, a pivotal component of photosynthesis, and to understand plant adaptations to environmental conditions.

---
Transcribed Image Text:--- ### Photosynthesis Educational Resource #### Calvin Cycle Worksheet **13.** Draw the complete pathway of the Calvin cycle reactions. Indicate where the investment of ATP, CO₂, and NADPH come into the cycle. **14.** What is the enzyme that “fixes” carbon in the Calvin cycle? **15.** What environmental input is necessary for the Calvin cycle reactions? **16.** What is regenerated in the Calvin cycle reactions? **17.** What is the primary product of the Calvin cycle reactions? **18.** The carbons for the product above come from --- ### Additional Photosynthesis Context **19.** In most plants, a buildup of oxygen occurs when [stomata] are closed. When oxygen rises in a plant, it combines with the enzyme [RuBisCO]. This process is called [photorespiration]. **20.** Did the Calvin cycle reactions evolve when the concentration of atmospheric oxygen on earth was low or high? **21.** What spatial and/or temporal adaptations allow C₄ and CAM plants to survive arid (dry) conditions better than C₃ plants? - **a. C₄:** - **b. CAM:** --- This worksheet encourages students to explore the intricate details of the Calvin cycle, a pivotal component of photosynthesis, and to understand plant adaptations to environmental conditions. ---
**Laboratory Exercise 7: PART B Photosynthesis Worksheet**

1. **What is the chemical equation for photosynthesis?** Label which are _reactants_ & _products_.
   
2. **Where does each reactant of photosynthesis come from?**  
   a.  
   b.  

3. **Which 2 products of photosynthesis are reactants in aerobic respiration?**  
   a.  
   b.  

4. **What are the two types of reactions in photosynthesis?** Use the terminology found in your textbook.  
   a.  
   b.  

5. **In 1882, T.W. Engelmann conducted an experiment to test which wavelengths of light are important for photosynthesis.** He placed a strand of *Spirogyra* (a filamentous green alga) across a glass slide. He illuminated the slide with a spectrum of colors created by a crystal prism. He then added a drop of water containing bacteria that use aerobic respiration. Watch the following YouTube video to see his results: [YouTube Link](https://youtu.be/Rt37Hyn4Qv4)

   Explain the significance of Engelmann's experiment and how it relates to the absorption spectra of chlorophyll a and chlorophyll b.  
   ___

6. **Label the following:** thylakoid membrane, stroma. Draw arrows where _water_ and _carbon dioxide_ enter and where _oxygen_ and _sugars_ exit. Be clear as to whether these substances are entering or exiting the thylakoid membrane or the stroma.

   *Diagram Description:*  
   A diagram of a chloroplast is shown. The inner section contains stacks of disc-like structures, representing the thylakoid membranes, and the surrounding fluid area represents the stroma.

7. **Where in the chloroplast do the light reactions occur?**  
   
8. **Where in the chloroplast do the Calvin cycle reactions occur?**  
   
9. **What 2 environmental inputs are necessary for the noncyclic light reactions?**  
   a.  
   b.  

10. **What are formed by the noncyclic light reactions?** Star* the two that are used in the Calvin cycle reactions. _Underline_ the one that is "waste."  
    a.  
    b.  
    c.  

11. **What is the initial electron donor in the noncyclic
Transcribed Image Text:**Laboratory Exercise 7: PART B Photosynthesis Worksheet** 1. **What is the chemical equation for photosynthesis?** Label which are _reactants_ & _products_. 2. **Where does each reactant of photosynthesis come from?** a. b. 3. **Which 2 products of photosynthesis are reactants in aerobic respiration?** a. b. 4. **What are the two types of reactions in photosynthesis?** Use the terminology found in your textbook. a. b. 5. **In 1882, T.W. Engelmann conducted an experiment to test which wavelengths of light are important for photosynthesis.** He placed a strand of *Spirogyra* (a filamentous green alga) across a glass slide. He illuminated the slide with a spectrum of colors created by a crystal prism. He then added a drop of water containing bacteria that use aerobic respiration. Watch the following YouTube video to see his results: [YouTube Link](https://youtu.be/Rt37Hyn4Qv4) Explain the significance of Engelmann's experiment and how it relates to the absorption spectra of chlorophyll a and chlorophyll b. ___ 6. **Label the following:** thylakoid membrane, stroma. Draw arrows where _water_ and _carbon dioxide_ enter and where _oxygen_ and _sugars_ exit. Be clear as to whether these substances are entering or exiting the thylakoid membrane or the stroma. *Diagram Description:* A diagram of a chloroplast is shown. The inner section contains stacks of disc-like structures, representing the thylakoid membranes, and the surrounding fluid area represents the stroma. 7. **Where in the chloroplast do the light reactions occur?** 8. **Where in the chloroplast do the Calvin cycle reactions occur?** 9. **What 2 environmental inputs are necessary for the noncyclic light reactions?** a. b. 10. **What are formed by the noncyclic light reactions?** Star* the two that are used in the Calvin cycle reactions. _Underline_ the one that is "waste." a. b. c. 11. **What is the initial electron donor in the noncyclic
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