About This Chapter
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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Other chapters within the ISC Biology: Study Guide & Syllabus course
- Microscopes Basics & Techniques
- Classification & Diversity of Life
- Kingdom Monera, Protista & Fungi
- Classification in the Animal Kingdom
- Overview of Vertebrates
- Classification in the Plant Kingdom
- Plant Physiology: Growth & Nutrition
- Plant Tissue: Structure & Function
- Absorption & Movement of Water in Plants
- Plant Morphology
- Reproduction of Flowering Plants
- Mechanisms of Cellular Respiration
- Cell Structure Overview
- Cell Membrane Basics
- DNA Basics
- Recombinant DNA & Its Applications
- Overview of Basic Genetic Principles
- Chromosomes & Genetics
- The Cell Cycle, Mitosis & Meiosis
- Overview of Biomolecules
- Enzyme Mechanisms
- Animal Tissue: Structure & Function
- Nutrition & the Digestive System
- Human Respiratory System Overview
- Basics of the Circulatory System
- Excretory System Overview
- Endocrine System Overview
- Basics of the Nervous System
- The Musculoskeletal System
- Human Reproduction & Development Basics
- Human Disease & Defense
- Origin & Evolution of Life
- Overview of Ecosystems
- Community Ecology Overview
- Overview of Biodiversity
- Environmental Biology Overview
- Biological Applications in Agriculture
- ISC Biology Flashcards