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What is the mechanism for absorption of water across the intestinal epithelium?
Wiki User
∙ 11y ago
Osmotic gradients control the inflow and outflow of water across any membrane, whether epithelium or phospholipid barrier.
Wiki User
∙ 11y ago
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How do avascular tissue receive nutreints?
By diffusion or absorption across the apical or basal surfaces of Epithelium.
What happens if intact proteins are transported across the villus epithelium?
Absorption occurs when intact proteins are transported across the villus epithelium. This process occurs through either diffusion or active transport.
What type of epithelial membrane has variable types of epithelium depending on where it is located?
This is true with all the epithelial tissue. You have different type of epithelium on your palm and sole. You have different type of epithelium in your nose than trachea and bronchial tree. You have different type of epithelium across the GI tract.
Wall of alveolar is made of what epithelium?
Simple, squamous epithelium which makes it easy for respiratory gases to diffuse across.
The surface area for diffusion across the membranes of cells in simple columnar epithelium is increased by the presence of?
microvilli
What is color absorption?
Absorption spectroscopy refers to spectroscopic techniques that measure the absorption of radiation, as a function of frequency or wavelength, due to its interaction with a sample. The sample absorbs energy, i.e., photons, from the radiating field. The intensity of the absorption varies as a function of frequency, and this variation is the absorption spectrum. Absorption spectroscopy is performed across the electromagnetic spectrum.
The transport mechanism for a neurotransmitter across the synaptic cleft is called?
simple diffusion
The primary mechanism for exchange of substances across the capillary wall is?
Diffusion
What enables absorption of b12 across small intestine wall?
Intrinsic factor, which is made in the stomach.
Explain why osmosis is important to cells?
Because it regulates the absorption and movement of water across the cells.
Stratified squamous epithelium lines blood vessels?
If stratified squamous epithelium lined the blood vessels, gas and nutrient exchange across the vessel walls would become much more complex, requiring multiple transports and making the process much more energy intensive.
What are the only two substances that are absorbed across the stomach's mucosal epithelium?
alcohol, some drugs, some salts, and water
