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The alveoli are tiny little sacs with walls only one cell thick, and they fill all but the conducting portion of the lungs.
Think about a single balloon filled with 1 liter of air. Now take 4 small balloons and fill them each with 250mL of air. The same amount of space will be taken up by the 4 smaller balloons as the 1 larger balloon, i.e. 1L, but the 4 smaller balloons have much greater surface area for gas diffusion.
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Are roots adapted to take in water because they have a small surface area?
No.Plant roots have large surface area,roots have root hairs to increase the surface area so that large amounts of water can be absorbed easily.
What Gives roots a large surface area to absorb minerals?
the root hairs attached to the root give the root cell a large surface area so that they can take minerals and water in more efficiently
Why do large particles in a rock layer cause less friction?
Large particles have less total surface area, so caused less friction then the smaller particles do...!!
Why are groups of a small cells better than one large cell at moving material in and out?
they have a greater surface-to-volume ratio
Why can a cell get only so large?
There is a surface area to volume ratio, as a cell gets larger it becomes harder and harder to transport materials inand out of the cell. There has to be enough surface area to supply the cell with all of the materials that it needs for survival.
Why do radiators have a large surface area?
They have a large surface area so there is enough area for heat radiation.
Three ways in which the lungs are adapted for gas exchange?
Many alveoli-increases surface area for gas exchange Thin alveolar wall-allows gases to diffuse easily and fast Thin capillary wall-easy diffusion Inner wall of alveoli-allows gases to dissolve, which they need to enter the capillary
Are roots adapted to take in water because they have a small surface area?
No.Plant roots have large surface area,roots have root hairs to increase the surface area so that large amounts of water can be absorbed easily.
Why are red giants so bright?
Because they have such a large surface area.
Why should skis have a large surface area?
I believe it has something to do with the large surface area resulting in lower pressure on the snow (or whatever your skiing on, if not snow) so you don't fall into the snow.
Why is it important that the surface of the solar panel has a large area?
so it can get more sun
Why is a catalyst spread over a large surface area?
So it is more efficient.
What Gives roots a large surface area to absorb minerals?
the root hairs attached to the root give the root cell a large surface area so that they can take minerals and water in more efficiently
How does the structure of gills allow for the production of so many spore?
large surface area.
Why do gills have a large surface area and are rich in blood?
because in many organisms like fish etc it is an organ for respiration the gills are supplied with capillaries so that the oxygen absorbed can diffuse into the blood it has large surface area so that more oxygen can be diffused in and more co2 can be removed
Why is surface area of alveoli in lungs is greater than the surface area of the skin?
The surface area of the alveoli is where oxygen and carbon dioxide are exchanged across membranes. A large surface area enables a greater amount of gas transfer. The skin has two main functions: one is holding all our bits in one place and the other is to maintain body temerature. In the latter role, a large surface area is good for cooling the body but bad for keeping warm. So it is a compromise.
Why doesn't it hurt so much if you sit on a seat made of a lot of pin?
your weight is spread on a large surface area so the pressure will not be as large as if you sat on one pin.
