Nutrition in Plants Class 7 Notes: CBSE Science Chapter 1

• Nutrition refers to how an organism consumes food and how the body processes it.

• Nutrients are the components of food that give the body nutrition.

• All creatures consume food and use it to obtain energy for body growth and upkeep.

• Photosynthesis is the mechanism through which green plants produce their own food. They are autotrophic organisms.

• Photosynthesis: In the presence of sunshine, green plants prepare their own food using chlorophyll (found in green plants), carbon dioxide, and water absorbed from the environment. Photosynthesis is the name for this process. For food synthesis, plants use simple chemical ingredients such as carbon dioxide, water, and minerals.

• For photosynthesis to occur, chlorophyll and sunshine are required. Photosynthesis produces complex chemical compounds such as sugars.

• With the help of chlorophyll, solar energy is stored in the form of food in the leaves. During photosynthesis, oxygen is created.

• Living species use the oxygen generated during photosynthesis to survive.

• Fungi get their food from rotting, dead things. They are saprotrophs or saprotrophic organisms. Cuscuta plants are parasitic. They eat the host plant's food.

• Heterotrophs are plants and animals that rely on others for their nutrition.

• Parasitic Creatures are parasitic organisms that live on the bodies of other organisms.

• All parasitic plants eat other plants in one of two ways:

1. Partial Parasites: They get some of their sustenance from the host, for example, a painted cup.

2. Total Parasites, such as mistletoe, are fully reliant on the host for nourishment.

• Saprophytic organisms are those that feed on dead and decaying plant and animal debris.

Mushrooms, molds, and some fungi and bacteria are examples.

• Insectivorous Plants: Green plants that get their nutrition from both the soil and the atmosphere, as well as small insects. Pitcher plant, bladderwort, and Venus flytrap, for example.

• Symbiosis is a type of nutrition in which two or more individuals work together to meet their nutritional needs.

• The relationship between algae and fungus can be seen in the form of lichens on tree trunks. The fungus provides water to algae, and algae provide food to fungus.

Important Topics of Class 7 Chapter 1 Science You Shouldn’t Miss!

• Photosynthesis: Understanding the process by which plants make their own food using sunlight, water, and carbon dioxide.

• Types of Nutrition in Plants: Learn about autotrophic and heterotrophic nutrition and how plants obtain nutrients.

• Role of Chlorophyll: Discover the importance of chlorophyll in photosynthesis and its role in giving plants their green colour.

• Nutrients Required by Plants: Study the essential nutrients that plants need for growth and how they absorb these from the soil.

• Symbiotic Relationships: Explore how some plants form symbiotic relationships to obtain nutrients, such as in the case of legumes and nitrogen-fixing bacteria.

Importance of Chapter 1 Nutrition in Plants Class 7 Notes

• Provides clear explanations of key concepts like photosynthesis and modes of nutrition.

• Simplifies complex topics, making them easier to understand and retain.

• Aligns with the CBSE syllabus for comprehensive exam preparation.

• It is ideal for quick revisions before exams, ensuring students grasp fundamental concepts.

• Lays a strong foundation for future science studies by reinforcing essential knowledge.

Tips for Learning the Class 7 Science Chapter 1 Nutrition in Plants

1. Understand the Basics First: Start by grasping the fundamental concepts like photosynthesis and the types of nutrition in plants. This will make it easier to build on more complex topics.

2. Use Diagrams: Visual aids like diagrams of the photosynthesis process can help reinforce your understanding. Try to label and explain these diagrams in your own words.

3. Break Down Concepts: Divide the chapter into smaller sections, focusing on one topic at a time. For example, study autotrophic and heterotrophic nutrition separately.

4. Review Regularly: Revisit the notes and key points regularly to reinforce your memory. Repetition is key to retaining information.

5. Practice Questions: Solve the end-of-chapter questions and additional practice problems to test your understanding and identify areas that need more focus.

Conclusion

Chapter 1 of Class 7 Science, Nutrition in Plants, is fundamental for understanding how plants produce their food and sustain life on Earth. By learning about photosynthesis, different types of plant nutrition, and the role of nutrients, students gain a strong foundation in biology. These concepts are not only important for exams, but also for appreciating the vital processes that support life in our environment. With the help of these notes, students can confidently grasp these topics and apply their knowledge in future studies.

Related Study Materials for Class 7 Science Chapter 1 Nutrition in Plants

Students can also download additional study materials provided by Vedantu for Class 7 Science Chapter 1 Nutrition in Plants.

Revision Notes Links for Class 7 Science

Important Study Materials for Class 7 Science