What is The Difference Between Breathing And Respiration With Example ?
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| The Difference Between Breathing And Respiration |
Breathing and respiration are often used interchangeably, but they refer to different physiological processes.
1. Breathing:
Breathing, also known as ventilation, refers to the process of inhaling and exhaling air into and out of the lungs.
It primarily involves the movement of air in and out of the respiratory system, including the nose, trachea, bronchi, and lungs.
Breathing is a mechanical process driven by the contraction and relaxation of respiratory muscles, such as the diaphragm and intercostal muscles.
It is essential for gas exchange, where oxygen is taken in and carbon dioxide is expelled.
Example of breathing: When you take a deep breath in through your nose and then exhale slowly through your mouth, you're engaging in the process of breathing.
2. Respiration:
Respiration is a broader term that encompasses multiple biochemical processes involved in the exchange of gases (oxygen and carbon dioxide) at the cellular level.
It includes external respiration, which is the exchange of gases between the lungs and the blood, and internal respiration, which is the exchange of gases between the blood and the body's tissues.
Cellular respiration is a crucial part of metabolism, where oxygen is used to generate energy (ATP) by oxidizing glucose or other organic molecules, and carbon dioxide is produced as a byproduct.
Example of respiration: In the cells of your body, oxygen is utilized to break down glucose molecules, releasing energy in the form of ATP and producing carbon dioxide as a waste product. This cellular process is known as cellular respiration.
In summary, breathing is the mechanical process of inhaling and exhaling air, while respiration refers to the biochemical processes involving the exchange of gases at both the pulmonary (lung) and cellular levels.
both breathing and respiration:
1. Breathing:
Involves two main phases: inhalation (inspiration) and exhalation (expiration).
During inhalation, the diaphragm contracts and moves downward, while the intercostal muscles between the ribs contract, expanding the chest cavity. This expansion lowers the air pressure in the lungs, causing air to rush in.
During exhalation, the diaphragm and intercostal muscles relax, allowing the chest cavity to decrease in size. This increases the air pressure in the lungs, forcing air to be expelled.
Breathing is regulated by the respiratory center in the brainstem, which responds to changes in blood pH, carbon dioxide levels, and oxygen levels.
2. Respiration:
External respiration occurs in the lungs, where oxygen from inhaled air diffuses into the bloodstream and carbon dioxide from the blood diffuses into the alveoli to be exhaled.
Internal respiration occurs at the cellular level, where oxygen diffuses from the bloodstream into cells, and carbon dioxide produced by cellular metabolism diffuses from cells into the bloodstream.
Cellular respiration involves three main stages: glycolysis, the citric acid cycle (Krebs cycle), and oxidative phosphorylation (electron transport chain). These processes occur in the mitochondria of cells and result in the production of ATP, which provides energy for cellular functions.
Example of breathing:
Imagine you're running a race. As you exert yourself, your muscles require more oxygen to generate energy. To meet this demand, your breathing rate increases, allowing more oxygen to enter your lungs and be delivered to your muscles. This increased breathing rate helps remove carbon dioxide, a waste product of cellular metabolism, from your body.
Example of respiration:
Think about a plant undergoing photosynthesis. During this process, plants use carbon dioxide from the air, water from the soil, and energy from sunlight to produce glucose and oxygen.
This oxygen is then released into the atmosphere, where it can be used by animals for cellular respiration to produce energy. Meanwhile, animals consume oxygen and produce carbon dioxide, which is used by plants in photosynthesis, completing the cycle.
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