Respiration in Organisms || Full Chapter in 1 Video || Class 7th Science || Junoon Batch

PW Little Champs 6th, 7th & 8th・2 minutes read

The text discusses various aspects of respiration in organisms, including different breathing patterns, the respiratory system, and the importance of understanding respiration versus breathing. It also explains how different organisms, such as fish, earthworms, and plants, engage in respiration through various methods.

Insights

  • Not everyone's blood is red, there are exceptions.
  • Autotrophs are organisms that prepare their own food, emphasizing the importance of understanding the differences between respiration and breathing, as well as the various breathing patterns in different organisms.

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Recent questions

  • What is the process of photosynthesis?

    Photosynthesis is the process by which plants, algae, and some bacteria convert light energy into chemical energy stored in glucose. This process involves the absorption of sunlight by chlorophyll in plant cells, which is used to convert carbon dioxide and water into glucose and oxygen. The energy from sunlight is used to power the chemical reactions that produce glucose, which serves as food for the plant and releases oxygen as a byproduct. Photosynthesis is crucial for the survival of plants and the production of oxygen in the atmosphere.

  • What is the difference between respiration and breathing?

    Respiration is the overall process of exchanging gases to release energy from food, while breathing is just one part of that process involving the inhalation and exhalation of air. Respiration includes breathing, but also encompasses the utilization of oxygen by cells to produce energy through processes like aerobic and anaerobic respiration. Breathing specifically refers to the mechanical process of inhaling oxygen and exhaling carbon dioxide to facilitate gas exchange in the lungs.

  • How does the circulatory system function?

    The circulatory system is responsible for transporting oxygen, nutrients, hormones, and waste products throughout the body. It consists of the heart, blood vessels, and blood. The heart acts as a pump to circulate blood through arteries, veins, and capillaries. Arteries carry oxygen-rich blood away from the heart, while veins return oxygen-poor blood back to the heart. Capillaries facilitate the exchange of nutrients and waste products between the blood and tissues. This system ensures that all cells in the body receive the necessary oxygen and nutrients while removing waste products for elimination.

  • What is cellular respiration?

    Cellular respiration is the process by which cells break down glucose and other nutrients to produce energy in the form of adenosine triphosphate (ATP). This process occurs in the mitochondria of cells and involves the consumption of oxygen and the release of carbon dioxide as a byproduct. Cellular respiration can be aerobic, requiring oxygen, or anaerobic, occurring without oxygen. Aerobic respiration is more efficient and produces more ATP, while anaerobic respiration is less efficient and produces lactic acid in humans.

  • How do different organisms breathe?

    Different organisms have varying respiratory systems adapted to their environments and lifestyles. For example, humans breathe through lungs, extracting oxygen from the air and releasing carbon dioxide. Insects like cockroaches and grasshoppers breathe through spiracles, allowing gas exchange. Earthworms and leeches absorb oxygen through their skin. Fish extract oxygen from water through gills. Plants undergo respiration by taking in oxygen through tiny openings in their leaves and releasing carbon dioxide. Each organism has evolved unique respiratory adaptations to meet their specific needs for gas exchange and survival.

Related videos

Summary

00:00

"Exploring Respiration and Breathing in Organisms"

  • Not everyone's blood is red, there are exceptions.
  • The speaker reminisces about a childhood game involving colors and grooming.
  • The audience is asked about their familiarity with a game called Tippi Tippi Tap.
  • The speaker discusses the process of photosynthesis, mentioning the sources of energy and gases involved.
  • Autotrophs are defined as organisms that prepare their own food.
  • The chapter being studied is about respiration and organisms.
  • Different organisms have varying breathing patterns.
  • The speaker emphasizes the importance of understanding the differences between respiration and breathing.
  • The respiratory system is detailed, starting from the nose and moving through the windpipe and food pipe.
  • The digestive system is compared to the respiratory system in terms of structure and function.

16:48

"Body's Circulatory System: Transportation and Respiration"

  • Packing clothes on top and jeep below for a demonstration.
  • Applying pressure from below causes the object to come down.
  • Introduction to the circulatory system as transportation.
  • Circulatory system explained as the body's transportation system.
  • Heart compared to a motor, veins to pipes, and blood as flowing water.
  • Metabolism defined as the sum of all chemical reactions in the body.
  • Cell explained as the basic unit of life, capable of performing all life processes.
  • Energy requirement for cell functions and the importance of respiration.
  • Cellular respiration detailed as the breakdown of nutrients in cells to produce energy.
  • Types of respiration: aerobic with oxygen and anaerobic without oxygen.

37:24

Respiration: Aerobic vs Anaerobic, Breathing, Health

  • Glucose breakdown is compared in aerobic and anaerobic conditions, with anaerobic respiration occurring without oxygen.
  • In anaerobic respiration, glucose breaks down into lactic acid, while in aerobic respiration, it breaks down into carbon dioxide and water.
  • Lactic acid fermentation takes place in muscular cells during anaerobic respiration, such as during heavy exercise.
  • Breathing involves taking oxygen from the air and releasing carbon dioxide, with the average human breathing rate being 15 to 18 times per minute.
  • Breathing rate can vary based on factors like oxygen requirements, such as during illnesses like COVID-19.
  • Lungs are located in the chest cavity and are protected by ribs and a muscular sheet below them.
  • Smoking is harmful to health, causing damage to the lungs and leading to diseases like difficulty in breathing.
  • Inhalation involves air entering the lungs, expanding them, while exhalation sees air leaving the lungs through the nostrils.
  • The diaphragm plays a crucial role in the breathing process, moving downwards during inhalation and upwards during exhalation.
  • Microorganisms and dust particles can enter the body through breathing, highlighting the importance of respiratory health.

57:55

"Respiration in Organisms: Breathing and Exchange"

  • The body has a defense mechanism against harmful external elements, preventing them from entering.
  • Minute hairs inside the body cavity trap foreign particles, leading to sneezing as a response.
  • The process of respiration begins with breathing and involves various organisms, including humans, animals, and plants.
  • Hemoglobin is responsible for the red color of blood, and its absence results in a different color.
  • Cockroaches and grasshoppers breathe through spiracles, allowing oxygen to enter and carbon dioxide to exit.
  • Earthworms and leeches absorb atmospheric oxygen through their skin, which is thin and allows gas exchange.
  • Fish breathe through gills, extracting oxygen from water and releasing carbon dioxide.
  • Plants undergo respiration, taking in oxygen and releasing carbon dioxide, with roots absorbing water and minerals from the soil.
  • The lecture covers various aspects of respiration in organisms, including humans, animals, and plants, emphasizing the importance of understanding the processes involved.
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