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Why respiratory surface of all organism must be moist?
Because alveoli have to be able to exchange gases freely like oxygen and get rid of carbon dioxide. Also, oxygen must have moisture to benefit breathing.
What is required in all living things in order for gas exchange to occur?
In any living organism that needs to breath, the only thing consistently required for life is the presence of moist membranes. The movement of oxygen and carbon dioxide across the membranes between the environment and the respiratory surface occurs by diffusion. Respiratory surfaces are generally thin and, since living animal cells must be wet in order to maintain their plasma membranes, these respiratory surfaces must be moist.
What are the properties for the solar system's planets?
the inner planets (Mercury, Venus, Earth, Mars) all have rocky solid surfaces. The outer planets (Jupiter, Saturn, Uranus, Neptune) all have gaseous atmospheres and liquid surfaces. Pluto is very dense and has a rocky surface.
Is Uranus a soild surface or gaseous plant?
Uranus is a gas giant planet ... it's all three.
Why is Jupiter the gaseous planet?
because all of the gas that has built up in the inner atmosphere stays close to the surface of the gaseous planet and it traps it there, therefore its called the gaseous planet.
Why respiratory surface of all organism must be moist?
Because alveoli have to be able to exchange gases freely like oxygen and get rid of carbon dioxide. Also, oxygen must have moisture to benefit breathing.
Where in the body apart from the lungs does gaseous exchange occurs?
Gaseous exchange occurs through capillaries all over the body to bring oxygen to cells and remove carbon dioxide.
What is required in all living things in order for gas exchange to occur?
In any living organism that needs to breath, the only thing consistently required for life is the presence of moist membranes. The movement of oxygen and carbon dioxide across the membranes between the environment and the respiratory surface occurs by diffusion. Respiratory surfaces are generally thin and, since living animal cells must be wet in order to maintain their plasma membranes, these respiratory surfaces must be moist.
Why must all respiratory system have a large surface area over which air can pass?
You have barile? Lungs have hierarchical structure which minimizes volume but maximises surface area Aveoli are the smallest units of structure and are the site of gaseous exchange: - They are circular = max surface area for min volume - Their most surfaces faciliate the exchange of gases - They have extensive blood supply which also faciliate the exchange
What are the properties for the solar system's planets?
the inner planets (Mercury, Venus, Earth, Mars) all have rocky solid surfaces. The outer planets (Jupiter, Saturn, Uranus, Neptune) all have gaseous atmospheres and liquid surfaces. Pluto is very dense and has a rocky surface.
Explain why large active organisms need special surface for exchange?
large organisms need larger area to exchange more substances.but large organisms have small surface area to volume ratio.this means that the surface is not large enough to enable gases and nutrients at the fast rate needed to keep all the cells alive.thus large organisms need special exchange surfaces to provide the body with the nutrients and gaseous exchange they require.
Is Uranus a soild surface or gaseous plant?
Uranus is a gas giant planet ... it's all three.
What does gas exchange across a membrane require?
Gases must first dissolve in a fluid in order to diffuse across a membrane. All gas exchange systems require a moist environment.
List four requirements for all respiratory surfaces?
The structure of organs is always relevant to function. The function of respiratory surfaces is gaseous exchange. The structure would therefore facilitate this as follows: 1. A single layer of squamous epithelial cells. 2. A large blood supply to the surface. 3. A large surface area. 4. Counter-current flow of medium to blood. (This means that the blood and air/water are flowing in opposite directions so as to increase the concentration gradient).
What is about the alveolus that makes gaseous exchange occur efficiently in the lungs?
Small volume and (relatively) large surface area. One estimate of the total surface area of all your alveoli is the area of a tennis court. (all folded up into your chest.) Also, only two layers of cells (and some interstitial fluid) between blood and air. Moist surface Close proximity to capillaries
What do all living thingshave in common?
Things common in living things. Growth, reproduction, gaseous exchange, and a limited life time.
Which gaseous element with the highest density of all gaseous elements?
Radon is the densest gaseous element.
