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Chapter 26 – Life Processes

The following Topics and Sub-Topics are covered in this chapter and are available on MSVgo:

Introduction

Have you ever wondered how our body functions? What are the processes that take place in our body even while we are sleeping or sitting still? Most of the activities that take place in our body are involuntary. It means that we cannot control them. It keeps on working on its own. 

For example, our heart keeps on pumping blood, and the stomach keeps digesting food, we breathe even while we are asleep, and many other activities never stop till the time we are alive. These are known as life processes. Let us learn about these in detail.

Before moving forward, let us first understand the meaning of life processes. They are activities that are important for the survival of our body. In simple words, our body performs certain functions that help us live, like digestion, respiration, excretion, and more. Unicellular organisms have a single cell that performs all the life processes, whereas multicellular organisms have multiple organs. They carry out life processes. Now, we will study each process in detail.

We have already discussed that our body never stops working. It needs energy to keep functioning. How does our body gain energy? The food that we take is the source of it. However, it does not directly provide power to our bodies. It is complex and is broken down by enzymes into smaller substances such as proteins, carbohydrates, and fat. This is known as nutrition. It is the process by which the organisms break down food into simpler substances so that the body can absorb it. There are generally two types of nutrition, namely, autotrophic nutrition and heterotrophic nutrition. 

When we eat the food, it gets dissolved into smaller pieces through saliva secreted by the salivary glands. It then passes through the esophagus and reaches the stomach. It contains certain enzymes and hydrochloric acid that dissolves the food. The food then goes to the small intestine, where it gets digested completely.

You must know that we require oxygen to survive. The air that we breathe in comprises both oxygen and carbon dioxide. Our bodies absorb oxygen, and carbon dioxide gets removed during exhalation. This process is called respiration. Oxygen also helps the cells to break down into glucose and water. It is known as cellular respiration.

The respiration process in human beings is quite complex. We breathe through our nostrils. The air gets filtered through the hair present in the nostrils. It then passes through the throat and reaches the lungs. The air then passes through small sacs present in the lungs known as alveoli. It helps in the exchange of gases. The entire body’s carbon dioxide is released into the alveoli, and the oxygen is absorbed through the blood vessels. It later gets distributed throughout the body.

Now that you know that the oxygen and the food get distributed throughout the body. It takes place with the help of blood. But, how does the blood flow all over the body? The heart is responsible for the transportation of blood.  It is connected to the different organs of the body through blood vessels. The process is known as circulation. It has two chambers where the blood is stored. Arteries transfer the oxygen-rich blood to the organs. It is stored in the upper chamber of the heart called the left atrium. The veins carry the blood containing carbon dioxide. It gets collected in the right atrium. When the left atrium receives blood, it expands. On contraction, it transfers the blood to the left ventricle. From here, the blood goes to the body. When the right atrium contracts, the right ventricle expands. The blood then reaches the lungs to receive oxygen. The process keeps on repeating.

As we have already studied above, our body breaks down the food we eat into smaller substances. It absorbs the necessary elements and distributes it throughout the body. However, the body leaves a large portion of the food as waste and removes it. This is known as excretion. It is a process by which the body removes the extra waste and harmful substances from our body. Our body’s excretory system comprises a pair of kidneys that absorb toxic substances from the blood, such as nitrogen waste and urea. It then produces urine. The ureter attached to each kidney transfers the urine from the kidney to the urinary bladder. It stores the urine. When it gets filled, the urethra excretes the urine from the body.

What are the seven life processes?

The seven life processes are nutrition, respiration, transportation, excretion, reproduction, growth, and digestion.

What is the life process Class 10?

Every living organism continues to grow throughout its life. The functions performed by the cells and the organs during their lifetime are known as life processes. You will learn this chapter in detail in class 10.

What are life processes examples?

There are several examples of life processes, including growth, metabolism, transfer of blood from the heart to all parts of the body, inhaling oxygen and exhaling carbon dioxide, and removing waste from our body.

What is the life process?

The functions performed by our body to help us live are known as life processes. The body performs these functions even while you are asleep.

To learn more about life processes and other concepts in detail, you should check out the MSVGo website. You can also download the MSVGo app, where you will understand the chapters through animated videos and graphics. It has a vast video library. You will find plenty of videos on other chapters as well.

High School Physics

  • Alternating Current
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High School Chemistry

  • Acids, Bases and Salts
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High School Biology

  • Absorption and Movement of Water in Plants
  • Adolescent Issues
  • Anatomy of Flowering Plants
  • Animal Kingdom
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  • Cell Cycle and Cell Division
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  • Circulation
  • Control And Coordination
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  • Ecosystem
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  • Excretory Products and their Elimination
  • Flowering Plants
  • Genes and Chromosomes
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  • Life Processes
  • Locomotion and Movement
  • Microbes in Human Welfare
  • Mineral Nutrition
  • Molecular Basis of Inheritance
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  • Neural Control And Coordination
  • Nutrition in Human Beings
  • Organism and Population
  • Photosynthesis
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  • Plant Growth and Development
  • Plant Kingdom
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  • Principles of Inheritance and Variation
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High School Math

  • Algebra – Arithmatic Progressions
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Middle School Science

  • Acids, Bases And Salts
  • Air and Its Constituents
  • Basic Biology
  • Body Movements
  • Carbon and Its Compounds
  • Cell – Structure And Functions
  • Changes Around Us
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  • Fibre To Fabric
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  • Fun With Magnets
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  • Getting To Know Plants
  • Health and Hygiene
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  • Light, Shadows And Reflections
  • Materials: Metals And Non-Metals
  • Matter and Its States
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  • Micro Organisms: Friend And Foe
  • Motion And Measurement Of Distances
  • Motion And Time
  • Nutrition In Animals
  • Nutrition In Plants
  • Organization in Living Things
  • Our Environment
  • Physical And Chemical Changes
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  • Pollution Of Air And Water
  • Reaching The Age Of Adolescence
  • Reproduction In Animals
  • Reproduction In Plants
  • Respiration In Organisms
  • Rocks and Minerals
  • Separation Of Substances
  • Simple Machines
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  • Some Natural Phenomena
  • Sorting Materials Into Groups
  • Sound
  • Stars And The Solar System
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  • Synthetic Fibers And Plastics
  • The Living Organisms And Their Surroundings
  • Transfer of Heat
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  • Transportation In Animals And Plants
  • Universe
  • Waste-water Story
  • Water: A Precious Resource
  • Weather, Climate And Adaptations Of Animals To Climate
  • Winds, Storms And Cyclones

Middle School Math

  • Addition
  • Area and Its Boundary
  • Boxes and Sketches
  • Data Handling
  • Fun With Numbers
  • Heavy and Light
  • How Many
  • Long And Short
  • Mapping
  • Measurement
  • Money
  • Multiplication and Factors
  • Multiply and Divide
  • Numbers
  • Parts and Wholes
  • Pattern Recognition
  • Patterns
  • Play With Patterns
  • Rupees And Paise
  • Shapes And Angles
  • Shapes And Designs
  • Shapes and Space
  • Similarity
  • Smart Charts
  • Squares
  • Subtraction
  • Tables And Shares
  • Tenths and Hundredths
  • Time
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