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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.
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.
How do glucose molecules cross a plasma membrane on the apical side of epithelial cells?
Glucose molecules cross the plasma membrane on the apical side of epithelial cells through facilitated diffusion using glucose transporters such as GLUT1 and GLUT2. These transporter proteins help the glucose molecules move down their concentration gradient into the cell.
Does urea and glucose stay in the capillaries while blood cells and protein molecules move into the capsule of a nephron?
Yes, urea and glucose remain in the capillaries, while blood cells and protein molecules are filtered out and move into the capsule of a nephron during the process of renal filtration. This filtration is part of the first step in the formation of urine in the kidneys.
What are the round cells that move in the blood capillary called?
The round cells that move in the blood capillaries are called RED BLOOD CELLS.
How does a glucose molecule move from the heart to a capillary next to a body cell?
LOL read the textbook
What is the tendency of water molecules to move up tiny tubes called?
Capillary action.
How is glucose absorbed into the bloodstream?
Glucose is absorbed into the bloodstream through a process called facilitated diffusion in the small intestine. Specialized proteins called glucose transporters help move glucose molecules from the intestine into the bloodstream, where it can be used for energy by the body's cells.
How does active transport facilitate the movement of glucose into muscle cells?
Active transport is a process that requires energy to move molecules across a cell membrane. In the case of glucose entering muscle cells, active transport proteins use energy to pump glucose molecules against their concentration gradient, allowing them to enter the cell even when there is a higher concentration of glucose outside the cell. This process ensures that muscle cells have a constant supply of glucose for energy production and muscle function.
How does glucose get into the cell and what is the process involved in its transportation?
Glucose enters the cell through a process called facilitated diffusion. This involves the use of specific proteins called glucose transporters, which help move glucose molecules across the cell membrane. The transporters bind to glucose molecules on one side of the membrane and then change shape to carry the glucose into the cell. This process does not require energy and allows cells to take in glucose efficiently for energy production.
What does serum insulin do?
Insulin allows glucose to move into cells. It thereby maintains glucose homeostasis.
How are glucose molecules moved into cell?
Glucose can move into cells by active or passive transport, in both cases membrane-spanning proteins are required. Active transport (SGLT) uses the concentration gradient of Sodium ions to move glucose against its concentration gradient. Passive transporters (GLUT) are only effective if the concentration of glucose in the cell is lower than outside the cell.
