CSS Botany Notes PDF
CSS Botany Notes
CSS Botany Notes are very helpful for students who want to prepare well for the CSS exam. They explain the study of plants, their parts, growth, and importance in simple words. Moreover, these notes cover many useful topics such as plant structure, functions, types, and their role in the environment. In addition, they include information about how plants are used in food, medicine, and industry. As a result, students can understand concepts more clearly and remember them easily for the exam. Therefore, reading and revising these notes regularly can help you write better answers and score higher marks in the CSS Botany paper.
Photosynthesis in Plants – Sample
1. Introduction
- Photosynthesis is the way green plants prepare their food by using energy from sunlight along with water and carbon dioxide.
- It produces glucose (a type of sugar) and releases oxygen into the air.
- This process is very important for life on Earth because it provides food and oxygen.
2. Requirements for Photosynthesis
- Sunlight energy is a source for the process.
- Chlorophyll Green pigment in leaves that absorbs light.
- Water is taken from the soil through the roots.
- Small openings in leaves (stomata) take in carbon dioxide from the air.
3. Steps in Photosynthesis
- Light Reaction, sunlight is absorbed by chlorophyll, and energy is stored.
- Dark Reaction (Calvin Cycle) Carbon dioxide is converted into glucose using stored energy.
4. Importance of Photosynthesis
- Produces food for plants and other living things.
- Provides oxygen for breathing.
- Maintains the balance of oxygen and carbon dioxide in the atmosphere.
- Supports the food chain.
5. Factors Affecting Photosynthesis
- Amount of light.
- Availability of water.
- Carbon dioxide level.
- Temperature.
6. Conclusion
- Photosynthesis is the basis of life on Earth.
- Protecting plants ensures the survival of humans and animals.
