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Capillery walls need to be thin so oxygen, nutrients and otherthings including hormones can diffuse into cells, also thin capilleries are needed for waste products such as carbon dioxide and urea to diffuse out of cells.
What else can I help you with?
What is a thin walled vein?
a capillary
How is the wall of a capillary suited for the exchange of materials in tissues?
The wall of a capillary is extremely thin.
What is the function of capillary net?
to spread the blood cells so thin that the oxygen can be taken into cells or transferred to other cells.
How does the thick capillary wall help blood move slowly?
Capillaries do not vary in thickness, they are very thin. The thin wall permits the exchange between the blood in the capillary and the adjacent tissue cells.
Describe the structure of a capillary wall?
capillary walls are very thin, often a cell thick. artery walls have two thick layers.
What is a capillary features?
A capillary has a very narrow lumn and very thin wall. These features maximize diffusion of nutrients, wastes, and oxygen.
How does the capillary help substanances pass through it?
Slow flow speed in the capillary increases the efficiency of diffusion. In addition, the thin wall of the capillary helps substances to pass through efficiently.
Why must air sacs have thin walls?
The air sac must have thin walls so that air passes easily through it.
When water is placed in a thin glass tube it tends to climb up the walls of the tube This effect is known as capillary action What causes this capillary action?
Hydrogen Bonding
When water is placed in a thin glass tube it tends to climb up the walls of the tube. This effect is known as capillary action. What causes this capillary action?
Hydrogen Bonding
Why are capillary tubes good models for xylem vessels?
The capillary tube is continuous and unbroken (like the xylem), which is essential to the cohesion-tension theory. Both are also 'dead' and thin.
What is the relationships cohesion and capillary action?
Cohesion is the attraction between molecules of the same substance. Capillary action is the tendency of water to rise in a thin tube. As one molecule of water is pulled up the plant's capillary, it pulls the other molecules up because of cohesion.
