Introduction
What is photosynthesis?
Photosynthesis is the process in which light energy is converted to chemical energy in the form of sugars. In a process driven by light energy, glucose molecules (or other sugars) are constructed from water and carbon dioxide, and oxygen is released as a byproduct. The glucose molecules provide organisms with two crucial resources: energy and fixed—organic—carbon.
Most photosynthetic organisms generate oxygen gas as a byproduct, and the advent of photosynthesis—over 333 billion years ago, in bacteria resembling modern cyanobacteria—forever changed life on Earth^11start superscript, 1, end superscript. These bacteria gradually released oxygen into Earth’s oxygen-poor atmosphere, and the increase in oxygen concentration is thought to have influenced the evolution of aerobic life forms—organisms that use oxygen for cellular respiration. If it hadn’t been for those ancient photosynthesizers, we, like many other species, wouldn't be here today!
Photosynthetic organisms also remove large quantities of carbon dioxide from the atmosphere and use the carbon atoms to build organic molecules. Without Earth’s abundance of plants and algae to continually suck up carbon dioxide, the gas would build up in the atmosphere. Although photosynthetic organisms remove some of the carbon dioxide produced by human activities, rising atmospheric levels are trapping heat and causing the climate to change. Many scientists believe that preserving forests and other expanses of vegetation is increasingly important to combat this rise in carbon dioxide levels.
Task
1.) Search and explain the photosynthesis formula using a one paragraph essay .
2.) Search for the important elements in photosynthesis and give your understanding.
3.) Conduct a research about the overall process of photosynthesis and compose a two paragraph essay about the significance of photosynthesis to all living organism.
Process
1. Read about the process of Photosynthesis.
2. Look into how Photosynthesis take place.
3. Answer the given tasks.
4. Research for additional information.
Evaluation
| 4 | 3 | 2 | 1 | |
| Quality of work |
Piece was written in an extraordinary style and voice Very informative and well-organized |
Piece was written in an interesting style and voice Somewhat informative and organized |
Piece had little style or voice Gives some new information but poorly organized |
Piece had no style or voice Gives no new information and very poorly organized |
| Understanding | Writing shows strong understanding | Writing shows a clear understanding | Writing shows adequate understanding | Writing shows little understanding |
| Ideas | Presents ideas in an original manner | Presents ideas in a consistent manner | Ideas are too general | Ideas are vague or unclear |
Conclusion
At the end of this activity the students are expected to:
- Understand the process of photosynthesis.
- Understand the significance of photosynthesis in every living organisms.
- Cite the overall product of photosynthesis.