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Why is it important capillary cells have channels between them?
for difussion
Why is it important capillary cells channels between them?
for difussion
Do exchanges between blood and tissue cells occur in capillary beds?
yes
Which term refers to the movement of white blood cells between endothelial cells lining capillary walls to enter the tissue?
Diapedesis
The vessels that permit exchange of materials between the cells and the blood are termed?
Capillary: A tiny blood vessel where substances are exchanged between the blood and the body cells.
What is intersitial fluid?
It's a kind of fluid which is the plasma seep up from the capillary to the interstitial of the cells as it is found between (inter)cells (stitial).
How are glucose and oxygen passed from the blood through the capillary walls to the cells?
Glucose and oxygen are transported from the blood to cells through capillary walls by a process called diffusion. The concentration gradient between the blood and the cells allows these molecules to passively move across the capillary walls. Once inside the cells, glucose and oxygen are used for energy production through cellular respiration.
What is the most important force causing net water flow across capillary walls?
The most important force causing net water flow across capillary walls is the pressure difference between the hydrostatic pressure inside the capillaries and the oncotic pressure due to proteins in the blood. This pressure difference, known as the Starling forces, drives the movement of water out of the capillaries into the interstitial space.
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.
The respiratory membrane consists of what cells?
Alveolar squamous cells and Capillary endothelial cells.
The cell junctions in plant cells that provide channels between adjacent cells are generally?
Plasmodesmata are the channels that traverse plant cell walls, which enables molecular exchange between the cells. They are analogous to gap junctions in animal cells. There are two forms of plasmodesmata: primary ones are formed during cell division and secondary ones can form between mature cells.Plasmodesmata provide a simple route for the movement of ions and macromolecules. Larger molecules use actin filaments to traverse the cells.
Which of the following would not move by diffusion across a capillary into the surrounding tissue?
Large proteins and cells like red blood cells would not move by diffusion across a capillary into the surrounding tissue. Diffusion is limited to small molecules and ions that can pass through the tiny gaps between endothelial cells.
