Class 7 Science - ODISHA
Life Processes in Plants
The chapter 'Life Processes in Plants' for Class 7 students under the Odisha Board (BSE) explores the essential biological activities that keep plants alive and growing. Students will learn about how plants prepare their own food through photosynthesis, how water and minerals are transported from roots to leaves through xylem, and how food is distributed via phloem. Additionally, the chapter covers plant respiration and excretion. Understanding these vital processes is crucial for board exams as it forms the foundation of plant biology, frequently appearing in both objective and short-answer questions.
Start Learning FreeKey Concepts
Photosynthesis
The process by which green plants prepare their own food using carbon dioxide and water in the presence of sunlight and chlorophyll.
Transportation in Plants
The movement of water, minerals, and prepared food throughout the plant body using specialized vascular tissues called xylem and phloem.
Xylem
A plant tissue responsible for transporting water and dissolved minerals upward from the roots to the leaves and other parts.
Phloem
A plant tissue that transports food prepared by the leaves to all other parts of the plant.
Transpiration
The loss of excess water in the form of water vapor from the aerial parts of the plant, mainly through tiny pores called stomata.
Important Formulas
Board Exam Info
Under the Odisha (BSE) curriculum, this chapter typically carries around 6 to 8 marks in the annual science examination. Questions generally include fill-in-the-blanks, true/false, differentiating between xylem and phloem, and short descriptive questions explaining photosynthesis or transpiration.
Frequently Asked Questions
What is the difference between xylem and phloem?
Xylem transports water and minerals from the roots to the rest of the plant, while phloem transports food made by the leaves to other parts of the plant.
Why is photosynthesis important for living organisms?
Photosynthesis provides food for plants and releases oxygen into the atmosphere, which is essential for the respiration of almost all living organisms.
What are stomata and what is their function?
Stomata are tiny pores usually found on the underside of leaves that help in the exchange of gases and the process of transpiration.
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