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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

Some people may falsely assume plants to be weaker than animals. However, plants and a few other organisms harness light energy from the sun to feed the rest of us. This lesson will introduce you to how they do it.

Chloroplast: Definition, Structure, Function & Examples

2. Chloroplast: Definition, Structure, Function & Examples

A chloroplast is a basic organelle that in a sense is one of the most important organelles to us, and we don't even have them! In this lesson, we will be looking where chloroplasts are found and what their role and function is in cells.

Carbon Fixation in Photosynthesis: Definition & Reactions

3. Carbon Fixation in Photosynthesis: Definition & Reactions

In this lesson, you will discover what carbon fixation means, when it occurs and what enzyme is involved. The lesson will discuss where the process of carbon fixation falls in photosynthesis as well as give a brief idea of a process by which carbon can be freed from fixation.

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

In this lesson, we'll learn how electrons get excited during the light-dependent reactions of photosynthesis, jumping off photosystem reaction centers like they were trampolines! In addition, we'll learn how the splitting of water creates reactants for this part of photosynthesis while creating a little fresh air for us.

Phosphorylation: Definition, Types & Steps

7. Phosphorylation: Definition, Types & Steps

Phosphorylation, or the addition of inorganic phosphate, is an important process within a biological system. In this article we will define phosphorylation, explore several types, and go over the steps involved in each.

Chemiosmosis in Photosynthesis & Respiration

8. Chemiosmosis in Photosynthesis & Respiration

Cells need energy to survive, but they can't use the energy from nutrients or light unless processed into certain molecules. In this lesson, we are going to explore the process of creating these molecules both in cells that rely on respiration as well as those that rely on photosynthesis.

C3 Plants: Definition, Types & Examples

9. C3 Plants: Definition, Types & Examples

Plants have evolved specific adaptations to allow them to survive in harsh climates. One of these adaptations is the way in which the plant undergoes photosynthesis. This lesson will focus on C3 plants, which use the most basic type of photosynthesis.

C4 Plants: Definition, Types & Examples

10. C4 Plants: Definition, Types & Examples

After exploring this lesson, you'll be able to define and identify C4 plants. Learn about what a C4 plant is and what makes C4 plants unique. Then you can test your knowledge with a quiz.

Limiting Factors of Photosynthesis

11. Limiting Factors of Photosynthesis

In this lesson, you'll learn about the major factors that can limit the rate of photosynthesis: carbon dioxide level, light intensity, and temperature. Test what you learned with the quiz following the lesson.

Photosynthesis: Biology Lab

12. Photosynthesis: Biology Lab

Plants and other organisms that have the pigment chlorophyll can do something that no other living creature can - capture light energy from the sun and use it to make chemical energy through photosynthesis. In this lab, we'll see how we can set up an experiment to measure the rate of this important process.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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