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Ch 12: Mechanisms of Photosynthesis

About This Chapter

Further your understanding of mechanisms of photosynthesis, including carbon fixation and accessory pigments in photosynthesis. If you are preparing for an exam or class discussion, these lessons and quizzes will help raise your confidence by testing your knowledge of concepts covered in advance.

Mechanisms of Photosynthesis - Chapter Summary

In these lessons on mechanisms of photosynthesis, you will review where chloroplasts are found and how they function in cells. There are also discussions that can help you understand light-dependent reactions of photosynthesis. By the end of the chapter, you should be positioned to:

  • Explain how plants harness light energy from the sun
  • Discuss the structure and function of chloroplast
  • Define carbon fixation and absorption spectrum in photosynthesis
  • Recall the role of chlorophyll in photosynthesis
  • List different types of phosphorylation
  • Discuss chemiosmosis in photosynthesis and respiration
  • Provide examples of C3 and C4 plants
  • Recount limiting factors of photosynthesis

A brief quiz is available for each lesson to see if you understand mechanisms of photosynthesis. The lessons only take around five minutes to complete, and you can print the quiz to study offline. You can also send questions to instructors if you need help.

12 Lessons in Chapter 12: Mechanisms of Photosynthesis
Test your knowledge with a 30-question chapter practice test
Photosynthesis: Definition & Reactions

1. Photosynthesis: Definition & Reactions

Photosynthesis is the process used by plants and some bacteria/protists to convert solar energy into sugar molecules. Learn about the definition, process, reactions, and products of photosynthesis.

Chloroplast: Definition, Structure, Function & Examples

2. Chloroplast: Definition, Structure, Function & Examples

Chloroplasts facilitate the process of photosynthesis in plant cells. Learn the definition, function, and structure of this organelle and its role in the process of obtaining energy from sunlight. See examples of different types of chloroplasts and variations of chlorophyll.

Carbon Fixation in Photosynthesis: Definition & Reactions

3. Carbon Fixation in Photosynthesis: Definition & Reactions

The process of photosynthesis involves carbon fixation, where an inorganic carbon molecule like CO2, is 'fixed' to an organic molecule. Discover carbon fixation through the Calvin Cycle, the distinction between C3 and C4 cycles, and the details of photosynthesis.

Action & Absorption Spectra in Photosynthesis

4. Action & Absorption Spectra in Photosynthesis

Learn about the action spectrum in plants; that is, what colors of light they use for photosynthesis. We will then discuss the absorption spectrum; that is, what colors of light they absorb, and whether they use them for photosynthesis or not.

Accessory Pigments in Photosynthesis: Definition & Function

5. Accessory Pigments in Photosynthesis: Definition & Function

In this lesson we will explore what a pigment is and the role of chlorophyll in photosynthesis. We will explore how accessory pigments increase a photosynthetic organism's ability to capture sunlight.

Photolysis and the Light Reactions: Definitions, Steps, Reactants & Products

6. Photolysis and the Light Reactions: Definitions, Steps, Reactants & Products

The process of photosynthesis includes photolysis, the light reactions that use energy from sunlight to split water molecules. Learn about the steps, reactants, and products involved in photolysis and understand how to define this oxygen-producing process.

Phosphorylation: Definition, Types & Steps

7. Phosphorylation: Definition, Types & Steps

In chemistry, phosphorylation is the process in which a phosphate group is added to a molecule. Learn how to define phosphorylation, review its types and steps, explore substrate-level and oxidative phosphorylation, and discover how glucose is prepared for glycolysis.

Chemiosmosis in Photosynthesis & Respiration

8. Chemiosmosis in Photosynthesis & Respiration

Examine the process of chemiosmosis in photosynthesis and respiration to understand how organisms generate energy. Review adenosine triphosphate and molecular currency before understanding chemiosmosis, cellular respiration, and photosynthesis.

C3 Plants: Definition, Types & Examples

9. C3 Plants: Definition, Types & Examples

C3 plants are those that thrive, and undergo photosynthesis most effectively in a low temperature, high moisture environment. Learn the process of the Calvin Cycle, the three types of photosynthesis, and examples of these plants in nature.

C4 Plants: Definition, Types & Examples

10. C4 Plants: Definition, Types & Examples

C4 plants use a specific type of photosynthesis to avoid wasteful photorespiration. Define C4 plants and discover the C4 photosynthesis process and examples of types of C4 plants.

Limiting Factors of Photosynthesis

11. Limiting Factors of Photosynthesis

Limiting factors of photosynthesis include different factors, such as light intensity, temperature, and carbon dioxide concentration. Understand how these factors and their interactions limit photosynthesis.

Photosynthesis: Biology Lab

12. Photosynthesis: Biology Lab

Photosynthesis is the process in which plants capture light from the sun and transform it into energy. Break down the photosynthesis reaction, learn how to test the reaction rate for photosynthesis in a biology lab, and analyze the results.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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More Exams
There are even more practice exams available in Mechanisms of Photosynthesis.

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