Gain a deeper understanding of nutrition in plants with this detailed worksheet for Class 7 students! This guide covers various topics such as photosynthesis, absorption of minerals and other essential nutrients, making it perfect for deepening your knowledge on the vital process of nutrition in plants.
What is Photosynthesis?
Photosynthesis is a process in which green plants use energy from the sun to convert carbon dioxide and water into sugar or other energy-rich molecules. This sugar can then be used as an energy source for plant growth, making photosynthesis essential for plant health. During this process, oxygen is also produced, acting as an important byproduct that's vital to life on earth.
What are the Processes Involved in Photosynthesis?
Photosynthesis is broken down into two phases: the light-dependent reactions and the Calvin cycle (light-independent reactions). In the light-dependent reactions, energy from sunlight is captured by pigments such as chlorophyll and converted into a form of chemical energy called ATP. This process happens in the thylakoid membrane of the organelle known as a chloroplast. In the light-independent phase, ATP and other molecules from the light-dependent phase are used to synthesize sugar from carbon dioxide. This process takes place in the stroma of the chloroplast.
How do Plants Absorb Minerals?
Plants absorb minerals through their roots, which means they can obtain the necessary elements to grow and survive. To do this, roots take in minerals from the soil via osmosis and diffusion, then transport them to other parts of the plant. This process involves using root hairs and other specialized root structures to take up water efficiently, often via active transport where energy is expended in order to move minerals into the cell.
What Role do Water, Sunlight and Carbon Dioxide Play in Plant Nutrition?
Water, sunlight and carbon dioxide all play an important role in the nutrition of plants. Water is essential for the uptake of minerals by the roots and is transported throughout the plant via a process called translocation. Meanwhile, photosynthesis requires both light and carbon dioxide to drive the conversion of sunlight into chemical energy stored as sugar. This sugar is then used as fuel for growth or respiration, or can be stored in specialised structures like fruits and seeds.
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In conclusion, if you're looking to improve your understanding of nutrition in plants or want to revise concepts from Chapter 1 of Class 7 Science, solving worksheets is an excellent strategy. With so many resources available on witknowlearn, you can easily find a Class 7 Science Chapter 1 Worksheet with Answers PDF or a Nutrition in Plants for Class 7 PDF Worksheet. Furthermore, if you want to explore related topics such as plants, their parts and functions, and the products we derive from them, you can find specific worksheets that cover those too. By regularly solving these worksheets, you can build your confidence and enhance your learning experience.
Class 7th Nutrition in plants important extra questions for revision
- What is the process by which green plants make their food?
- Name the pigment present in green plants that helps in photosynthesis.
- What are the raw materials required for photosynthesis?
- What are the products of photosynthesis?
- What is the function of chlorophyll in photosynthesis?
- How do non-green plants obtain their food?
- What are the modes of nutrition in plants?
- What is saprophytic nutrition?
- Give an example of a parasitic plant.
- What are insectivorous plants? Give an example.
- What is a chloroplast?
- What is the role of stomata in plants?
- What is transpiration?
- What is the importance of water in plants?
- What are the different types of roots in plants?
FAQs on Nutrition in Plants
What is Nutrition in Plants?
Nutrition in Plants is the process by which plants make their food by utilizing sunlight, carbon dioxide, water, and mineral salts from the soil.
What is photosynthesis?
Photosynthesis is the process by which green plants make their food by using sunlight, water, and carbon dioxide to produce glucose and oxygen.
What are chloroplasts?
Chloroplasts are specialized organelles present in green plant cells that contain chlorophyll and other pigments that are responsible for trapping light energy for photosynthesis.
How do non-green plants obtain their food?
Non-green plants obtain their food by parasitism, saprophytism, or by forming associations with other plants.
What are the different modes of nutrition in plants?
The different modes of nutrition in plants are Autotrophic, Heterotrophic, Parasitic, and Saprophytic.
What is transpiration?
Transpiration is the process by which water is lost from the leaves of the plant in the form of water vapour.
What are the different types of roots in plants?
The different types of roots in plants are Taproots, Fibrous roots, and Adventitious roots.
What is the role of stomata in plants?
Stomata are tiny pores present on the leaves of plants that allow for the exchange of gases, such as carbon dioxide and oxygen.
What is the importance of water in plants?
Water is essential for plants as it helps in the absorption of minerals from the soil and the transportation of nutrients throughout the plant.
It also helps in maintaining the turgidity of the plant cells.
What are the products of photosynthesis?
The products of photosynthesis are glucose and oxygen