Class 10 Science - ODISHA
Life Processes
The Chapter 'Life Processes' in Class 10 Science under the Odisha BSE board explores the basic maintenance functions essential for living organisms to stay alive. Students will study four main life processes: Nutrition, Respiration, Transportation, and Excretion in both plants and animals. This chapter is fundamental for understanding human physiology and plant biology, holding high weightage in the annual board examination. Questions frequently test diagrams, functional differences between aerobic and anaerobic respiration, and the mechanism of urine formation or blood circulation.
Start Learning FreeKey Concepts
Autotrophic Nutrition
The mode of nutrition where organisms like green plants prepare their own food from simple inorganic substances using sunlight and chlorophyll.
Heterotrophic Nutrition
The mode of nutrition where organisms depend directly or indirectly on other organisms for food, categorized into holozoic, saprophytic, and parasitic types.
Aerobic and Anaerobic Respiration
Aerobic respiration breaks down glucose in the presence of oxygen to release large amounts of energy, whereas anaerobic respiration occurs in the absence of oxygen producing less energy.
Transportation in Human Beings
The circulatory system, driven by the heart, transports oxygen, carbon dioxide, nutrients, and waste products through blood vessels using a double circulation pathway.
Excretion in Humans
The biological process of removing metabolic nitrogenous wastes from the body using specialized filtration units called nephrons within the kidneys.
Important Formulas
Board Exam Info
In the Odisha BSE Class 10 Science board exam, 'Life Processes' carries approximately 8 to 12 marks. Questions usually include multiple-choice questions (MCQs), short-answer reasoning questions, and 5-mark long-answer questions that often require labeled diagrams of the human digestive system, respiratory system, heart, or nephron.
Frequently Asked Questions
What is the difference between breathing and respiration?
Breathing is a physical process of inhaling oxygen and exhaling carbon dioxide, while respiration is a biochemical process where glucose is oxidized inside cells to release energy.
Why is double circulation necessary in humans?
It ensures complete separation of oxygenated and deoxygenated blood, providing a high supply of oxygen to maintain body temperature and energy demands.
What is the role of stomata in plants?
Stomata are tiny pores on leaves that facilitate the exchange of gases (carbon dioxide and oxygen) and help in transpiration of water.
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