Emphysema is a condition resulting from
- cigarette smoking
- liquor consumption
- drug addiction
- reduced oxygen carrying capacity of blood
The Correct Option is A
Approach Solution - 1
Approach Solution -2
Emphysema is a lung condition that is primarily caused by cigarette smoking. This is caused after a long exposure of the irritants. In this there is a destruction in the alveoli in the lungs thus reducing the function of lungs and difficulty in breathing. Some of the causes of emphysema are:
The diseases can also be caused due to genetic defects, if there is a deficiency in alpha-1 antitrypsin protein. These proteins are synthesised by the liver and protect the lungs from damage. Exposure to air pollutants for a long period of time can lead to emphysema. It cannot be reversed, it is a chronic disorder. Smoking and exposure to irritants should be avoided to prevent further damage.
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Top Questions on Exchange Of Gases
Which of the following statements about the pharynx and larynx is/are correct?
(1) The pharynx serves as a pathway for both food and air.
(2) The larynx is involved in the production of sound.
(3) The pharynx contains the vocal cords.
(4) The larynx prevents food from entering the trachea.
Choose the correct options from the given below:- MHT CET - 2024
- Biology
- Exchange Of Gases
- Under normal physical conditions in human beings every 100 ml oxygenated blood can deliver____ml of O2 to the tissues.
- NEET (UG) - 2023
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- Given below are two statements:
Statement I: Greenhouse gases are increasing due to industrial development, exponential increase in energy production and use
Statement II: Increase in the concentration of greenhouse gases is directly dependent upon anthropogenic activities.
In the light of the above statements, choose the most appropriate answer from the options given below- CUET (PG) - 2023
- Agroforestry
- Exchange Of Gases
- Which of the following is not the function of the conducting part of the respiratory system?
- NEET (UG) - 2022
- Biology
- Exchange Of Gases
- The partial pressures (in mm Hg) of oxygen (O2 ) and carbon dioxide (CO2 ) at alveoli (the site of diffusion) are
- NEET (UG) - 2021
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- Exchange Of Gases
Concepts Used:
Breathing and Exchange of Gases
A metabolic process, which is carried out by all living organisms including plants, animals, and humans for the production of energy and to stay alive is Respiration. Except for required anaerobes, every other organism from amoeba to humans needs oxygen for survival. And evolution has reported a number of systems that allows the exchange of gases in organisms.
There are two types of respiration such as;
- Aerobic respiration — to produce energy, it occurs in the presence of oxygen
- Anaerobic respiration — to produce energy, occurs in the absence of oxygen
Breathing can be simply derived as the process of inhaling oxygen gas from the atmosphere and exhaling the carbon dioxide gas back into the atmosphere is termed breathing and the process is commonly known as respiration.
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