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Beta cells in the pancreas sense extracellular glucose concentration primarily through the glucose transporter GLUT2, which facilitates glucose uptake. Once inside the cell, glucose is metabolized to produce ATP, leading to the closure of ATP-sensitive potassium channels (K_ATP channels). This depolarization triggers the opening of voltage-gated calcium channels, resulting in an influx of calcium ions and subsequent insulin secretion. This process allows beta cells to respond dynamically to changes in blood glucose levels.
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Where are the receptors in the body that senses the change in glucose in the blood?
The receptors that sense changes in blood glucose levels are primarily located in the pancreas, specifically in the islets of Langerhans. Beta cells in these islets detect elevated glucose levels and respond by secreting insulin, while alpha cells sense low glucose levels and release glucagon. Additionally, glucose-sensing neurons in the hypothalamus also play a role in regulating energy balance and glucose metabolism.
What event makes the hypothalamus sense that body cells need more energy?
A decrease in glucose levels in the blood signals the hypothalamus that body cells need more energy. This triggers the release of hormones that regulate appetite, metabolism, and energy expenditure to maintain energy balance.
What do neurons eat?
Neurons do not eat in the traditional sense like other cells. They rely on glucose and oxygen for energy, which they obtain from the bloodstream. Additionally, neurons require nutrients and minerals for their structure and function, which are also delivered through the bloodstream.
Which feedback mechanism is used to regulate blood glucose?
Negative feedback systems are processes that sense changes in the body and activate mechanisms that reverse the changes in order to restore conditions to their normal levels.Glucose levels are regulated by hormones including insulin, glucagon, amylin, GLP-1, glucose-dependent insulinotropic peptide (GIP), epinephrine, cortisol, and growth hormone. Of these, insulin and amylin are derived from the beta-cells, glucagon from the alpha-cells of the pancreas, and GLP-1 and GIP from the L-cells of the intestine.
Do animal cells have plant cells?
This question makes little to no sense. The answer is no, definitely not.
What is the glucose sensor in B-cells Why?
glucokinase. glucokinase has a high km(low affinity for glucose) so glucokinase only phosphorylates glucose when blood glucose is high, such as after a meal. As such, it makes sense that this would be sensor for B-cells
Where are the receptors in the body that senses the change in glucose in the blood?
The receptors that sense changes in blood glucose levels are primarily located in the pancreas, specifically in the islets of Langerhans. Beta cells in these islets detect elevated glucose levels and respond by secreting insulin, while alpha cells sense low glucose levels and release glucagon. Additionally, glucose-sensing neurons in the hypothalamus also play a role in regulating energy balance and glucose metabolism.
A concentration of sense organs and nerve cells in anterior end of the body known as?
Cephalization
Why did we can concentration camps?
Isn't that common sense...
The vapour pressure of pure water is 30mm the vapour pressure of 10 glucose solution?
The vapor pressure of a 10% glucose solution will be lower than that of pure water because the presence of the solute (glucose) lowers the vapor pressure of the solution compared to the pure solvent (water). The exact vapor pressure will depend on the concentration of the solution and the nature of the solute.
Where are the receptors that sense changes in blood glucose?
the pancreas
Can fungi eat food or engulf food?
Fungi absorb nutrients from their surroundings through a process called extracellular digestion. They release enzymes to break down organic matter outside of their cells, then absorb the digested nutrients into their cells. So, while fungi do not "eat" food in the traditional sense, they do acquire nutrients by breaking down and absorbing organic matter.
What osmometer cell sense?
chages in the concentration of blood plasma
Are cells in water?
In a sense. Many cells are surrounded by water.
What event makes the hypothalamus sense that body cells need more energy?
A decrease in glucose levels in the blood signals the hypothalamus that body cells need more energy. This triggers the release of hormones that regulate appetite, metabolism, and energy expenditure to maintain energy balance.
What cells are present in animal cells that are not present in plant cells?
Cells are not part of cells, your question makes no sense.
How do earthworms demonstrate cephalization?
Cephalization is the concentration of nerve cells at one end of the body. All of an earthworms sensory organs, including the nerve cells are in one part of the body. This can be proven through dissection.
