Class 7 Science - KERALA
Life Processes in Plants
The chapter 'Life Processes in Plants' in Class 7 Science explores the fascinating ways plants survive, grow, and maintain life. Kerala (SCERT) students will learn about the vital processes that keep plants alive, including photosynthesis for food production, transportation of water and nutrients through xylem and phloem, and respiration. Understanding how plants breathe through stomota and prepare their own food is essential for upcoming school exams and builds a strong foundation in biological sciences.
Start Learning FreeKey Concepts
Photosynthesis
The process by which green plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.
Transportation in Plants
The movement of water and minerals from roots to leaves through specialized tissue called xylem, and food from leaves to other parts through phloem.
Respiration in Plants
The process by which plants take in oxygen and release carbon dioxide to break down food and release energy for growth.
Transpiration
The loss of water vapor from plant leaves through tiny pores called stomota, which helps in cooling and pulling water up from the roots.
Stomata
Tiny microscopic openings mostly on the underside of leaves that allow plants to exchange gases with the atmosphere.
Important Formulas
Board Exam Info
In Kerala (SCERT) Class 7 Science exams, this chapter typically carries around 6 to 10 marks. Common question types include diagram labeling (like stomota or plant transport), differentiate between questions (xylem vs phloem), and short answer questions explaining photosynthesis and transpiration.
Frequently Asked Questions
What is the difference between xylem and phloem?
Xylem transports water and minerals from the roots to the leaves, while phloem transports prepared food from the leaves to other parts of the plant.
Why do plants need stomota?
Stomata act as respiratory pores that allow plants to take in carbon dioxide for photosynthesis and release oxygen, as well as release excess water during transpiration.
Do plants respire only at night?
No, plants respire 24 hours a day, just like humans and animals, taking in oxygen and releasing carbon dioxide continuously.
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