Very short answer questions 1×1=1M
1. What is the other name of windpipe?
Short answer questions 3×3=9M
2. How is oxygen and carbon dioxide transported in human beings?
3. How are lungs design in human beings to maximize the area for exchange of gases?
4. What are the steps of respiration? Explain.
Long answer questions 2×5=10M
5. What are the different ways in which glucose is oxidised to release energy?
6. Explain mechanism of human respiration?
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Answers
Answer:
6. mechanism of humam respiration
Mechanism of respiration in man takes place in two phases, namely inspiration and expiration. Inspiration is the process of inhaling air into the lungs. During inspiration, the muscles of diaphragm contract and the diaphragm moves downward. This results in the increase in the volume of the chest cavity, The air pressure inside the chest cavity decreases. The oxygenated air present outside the body being at high-pressure flow rapidly into the lungs. In the lungs, oxygenated air reaches the alveoli. Alveoli are thin walled and are surrounded by a network of blood capillaries. The oxygen passes through the walls of the alveoli into the blood present in blood capillaries. The oxygen is then supplied to all the tissues of the body. From the tissues, the waste product, carbon dioxide is absorbed by blood and carried to the alveoli of lungs for expiration. Expiration is the process of exhaling air from lungs. During expiration, the muscles of diaphragm relax and diaphragm moves upward. This results in the decrease in the volume of the chest cavity. The air pressure inside the chest cavity increases. This pushes out carbon dioxide outside the body.
Answer:
trachea, pharynx, throat, , are the another name of windpipe
The transport of gases during respiration, both oxygen and carbon dioxide are carried out by the blood cells. ... The transportation of gases is a very efficient process.
A pair of lungs are designed in humans in such a way that they are lined by a thin membrane where the smaller tubes called bronchioles a balloon-like structure and the surface area for the exchange of gases have been increased by the alveoli and network of blood capillaries
Cellular respiration is a metabolic pathway that breaks down glucose and produces ATP. The stages of cellular respiration include glycolysis, pyruvate oxidation, the citric acid or Krebs cycle, and oxidative phosphorylation.
1) Aerobic respiration : In this case pyruvate is broken down into water and carbon dioxide along with release of energy. It commonly occurs in mitochondria of cells. 2) Anaerobic respiration in yeast : In yeast cells during fermentation pyruvate is converted into ethanol and C02 in the absence of 02
Mechanism of respiration in man takes place in two phases, namely inspiration and expiration. Inspiration is the process of inhaling air into the lungs. During inspiration, the muscles of diaphragm contract and the diaphragm moves downward. ... During expiration, the muscles of diaphragm relax and diaphragm moves upward.
Explanation:
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