Class 7 Science - UP
Life Processes in Plants
The chapter 'Life Processes in Plants' in UP Board Class 7 Science explores how plants sustain life, grow, and reproduce. Students will learn about essential biological processes such as nutrition, respiration, transportation of water and minerals through xylem and phloem, and reproduction in plants including pollination and seed dispersal. This chapter forms the foundation of plant biology, which is crucial for higher science classes. In board-pattern assessments, questions from this chapter test both factual knowledge and conceptual understanding through diagrams, fill-in-the-blanks, and short descriptive answers, making it a high-scoring section.
Start Learning FreeKey Concepts
Photosynthesis
The process by which green plants make their own food using sunlight, carbon dioxide, and water in the presence of chlorophyll.
Transportation in Plants
The movement of water and minerals through xylem tissue and food through phloem tissue from one part of the plant to another.
Respiration in Plants
The process by which plants break down food to release energy using oxygen, taking place through tiny pores called stomata.
Transpiration
The evaporation of excess water from the aerial parts of plants, mainly through stomata on the leaves, creating a suction pull for water absorption.
Reproduction in Plants
The process of producing new plants, which can occur through vegetative propagation, sexual reproduction involving flowers, or spore formation.
Important Formulas
Board Exam Info
In UP Board Class 7 Science examinations, this chapter typically carries around 6 to 8 marks. Common question types include labeling plant transport tissues, defining key terms like transpiration and photosynthesis, differentiating between xylem and phloem, and short descriptive questions about plant reproduction.
Frequently Asked Questions
How do plants breathe if they do not have a nose or lungs?
Plants breathe through tiny pores called stomata present on their leaves and through lenticels on their stems, which allow the exchange of oxygen and carbon dioxide with the air.
What is the difference between xylem and phloem?
Xylem is the vascular tissue responsible for transporting water and minerals from the roots to the leaves, while phloem transports prepared food from the leaves to other parts of the plant.
Why is transpiration important for plants?
Transpiration helps in cooling the plant and creates an upward suction pull that helps roots absorb water and essential minerals from the soil.
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