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How do nutrients carried in the blood reach the cells?
Blood is carried from the heart to various parts of the body in tubes called blood vessels. Capillaries are tiny blood vessels in almost every tissue in the body. Capillaries as so small they only allow one blood cell at a time to go through them. They are the only blood vessels with walls thin enough to allow diffusion. Nutrients in the blood diffuse directly across the thin capillary walls and into the cells of the tissues.
How is epithelial tissue adapted for gas exchange?
Epithelial lining between the alveoli wall and the blood capillaries is thin to provide a shorter diffusion distance for easy gaseous exchange.
What vessels of the body are thin and small enough to allow materials to pass over the membrane?
Capillaries
A type of epithelium consisting of a single layer of flat cells which allow diffusion to occur is?
This is referred to as the simple squamous epithelium. These cells contact the basement membrane and they are flat and thin.
What is the most abundant plant tissue with thin cell walls and intercellular spaces?
The most abundant plant tissue with thin cell walls and intercellular spaces
What are the thin walled blood vessels that allow the exchange of gases and nutrients between the blood and cells?
Capillaries - The endometrium (epithelial lining/wall) of the capillaries is only one cell thick optimizing diffusion/osmosis between it and the tissue cells of the body
How do nutrients carried in the blood reach the cells?
Blood is carried from the heart to various parts of the body in tubes called blood vessels. Capillaries are tiny blood vessels in almost every tissue in the body. Capillaries as so small they only allow one blood cell at a time to go through them. They are the only blood vessels with walls thin enough to allow diffusion. Nutrients in the blood diffuse directly across the thin capillary walls and into the cells of the tissues.
How is Alveoli well adapted to diffusion?
The alveoli have very thin walls, which allow for rapid diffusion into the surrounding capillaries. There are also many alevoli in the lung, and that increases the surface area dramatically, allowing for more diffusion to occur
What blood vessel exchanges substances with a nephron?
Capillary. The thin walls allow diffusion of materials to pass from the blood flow into the nephron.
How do jellyfish respire?
Jellyfish respire through their body surface.
Whats the sacs of lung tissue?
alveoli are the little sacks in the lungs which expand to allow air in. they are very thin to allow gaseous exchanges to occur =)
Why do the walls of the capillaries and aveoli need to be thin?
The walls of alveoli are thin to allow the exchange of gases (Co2 and O2) between blood capillaries and the aveoli in the lungs.
How is epithelial tissue adapted for gas exchange?
Epithelial lining between the alveoli wall and the blood capillaries is thin to provide a shorter diffusion distance for easy gaseous exchange.
What tissue is the walls of the alveoli composed of?
the walls of the alveoli are very thin but strong layers of elastic tissue lines with a single layer of flattened epithelium.
Where in the respiratory system does gas exhcange occur?
Gas exchange occurs in the alveoli in the respiratory system. The thin-walled structures allow diffusion of gases into and out of the capillaries.
What vessels of the body are thin and small enough to allow materials to pass over the membrane?
Capillaries
Why are the membraines in the alveoli thin?
membranes must be thin for efficient diffusion of gasses.
