About This Chapter
In this chapter, we'll explore the process of cellular respiration, along with glycolysis, the citric acid cycle and the electron transport chain to demonstrate the steps that keep your body going. Our lessons will also cover photosynthesis, the biochemical process that supplies energy to plant cells. We'll examine how chlorophyll absorbs light energy to accomplish this process. Biochemical reactions and their accompanying enzymes make life possible - they move quickly and occur every day, but our lessons will make sure you stay ahead. By the end of this chapter, you'll have learned about:
- The process of cellular respiration
- The steps of the glycolysis cycle
- The steps of the Krebs cycle
- How lactic acid and alcoholic fermentation are the same and different
- How plants absorb light and turn it into energy
- What the Calvin-Benson cycle is
|Cellular Respiration: Energy||Find out how cellular respiration equals energy.|
|Redox Reactions & Electron Carriers in Cellular Respiration: Definitions and Examples||Study redox reactions and electron carriers during the cellular respiration process.|
|Glycolysis Cycle: Steps, Products & Importance||Explore the glycolysis cycle.|
|The Citric Acid (Kreb) Cycle: Products and Steps||Examine the citric acid cycle.|
|The Electron Transport Chain: Products and Steps||Analyze the steps of the electron transport chain.|
|Lactic Acid & Alcoholic Fermentation: Comparison, Contrast & Examples||Compare and contrast lactic acid and alcoholic fermentation.|
|Chlorophyll: Absorbing Light Energy for Photosynthesis||Discover how light energy is absorbed to begin photosynthesis.|
|Photolysis and the Light Reactions: Definitions, Steps, Recants & Products||Take a look at photolysis and light reactions.|
|Dark Reactions of Photosynthesis: The Calvin-Benson Cycle||Study the Calvin-Benson cycle.|
1. Cellular Respiration: Energy Transfer in Cells
Watch this short video to learn the basics about converting organic compounds into ATP, also known as cellular respiration. We'll look at an overview of the process.
2. Redox Reactions & Electron Carriers in Cellular Respiration: Definitions and Examples
Redox reactions play an important role in cellular respiration. In this lesson, you will see how NAD and FAD are used as electron carriers to temporarily store energy during cellular respiration.
3. Glycolysis Pathway: Steps, Products & Importance
Cellular respiration creates chemical energy in the form of ATP from the food we eat and the air we breathe. In this lesson, we'll learn about the first part of this process, glycolysis.
4. The Citric Acid (Krebs) Cycle: Products and Steps
In this lesson, we return to the process of cellular respiration for the second act of creating energy from food. In this act, products from glycolysis feed into the next stage, the citric acid cycle.
5. The Electron Transport Chain: Products and Steps
In this lesson, we'll learn about the finale of cellular respiration. The electron transport chain uses products from the first two acts of glycolysis and the citric acid cycle to complete the chemical reaction that turns our food into usable cellular energy.
6. Lactic Acid & Alcoholic Fermentation: Comparison, Contrast & Examples
When in an anaerobic environment, some cells can use glycolysis and fermentation to keep producing ATP. Lactic acid fermentation happens in our muscle cells when we are exercising feverishly, while alcoholic fermentation is used in yeast cells and is what leads to beer, bread, and wine.
7. Chlorophyll: Absorbing Light Energy for Photosynthesis
Plants are clean, green, photosynthesizing machines. Using a specialized pigment called chlorophyll, plants are able to soak up energy from the sun and turn it into food. In this lesson, we'll start to learn why chlorophyll literally gets excited about a sunny day!
8. 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.
9. Dark Reactions of Photosynthesis: The Calvin-Benson Cycle
Photosynthesis starts out using the energy from sunlight to get things started, but it ends with the dark reactions, which don't need sunshine to complete sugar production. In the Calvin cycle, ATP and NADPH from the light reactions are used to produce sugars.
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Other chapters within the Biology 101: Intro to Biology course
- Basic Terms & Skills in Biological Science
- Inorganic Chemistry Review for Biology
- Introduction to Organic Molecules & Heterotrophs
- The Nucleotide Structure of DNA & RNA
- Enzyme Function, Interactions & Regulation
- Cell Membrane Model, Components & Transport
- Cell Structure, Organelles & Organelle Functions
- Processes & Steps of DNA Replication
- Transcription, Translation & Protein Synthesis
- Types & Effects of Genetic Mutations
- Cell Growth & The Process of Cell Division
- The Musculoskeletal, Circulatory, Respiratory, Digestive & Excretory Systems
- The Nervous System & Endocrine System
- Reproduction, Development & Survival in Animals
- Mendelian Genetics & Mechanisms of Heredity
- Ecology Principles & Community Ecology
- Evolutionary Principles & Natural Selection
- Earth's Timeline & Geological Evolution
- Taxonomic Classification & Phylogeny
- Genetic Engineering & DNA Sequencing
- Studying for Biology 101