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Gluconeogenesis, the production of glucose, occurs only in the liver and the kidney cortex. The process begins in the mitochondria, but a majority of the biosynthetic reactions take place in the cytoplasm. The ultimate metabolite of the pathway produces glucose 6 phosphate, which is transported into the lumen of the endoplasmic reticulum and converted into glucose via the enzyme Glucose 6 Phosphatase. (Glucose is maintained as Glucose 6 phosphate to prevent it escaping from the cell.)
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Glucose and no other sugar is transported into cells by protein carrier molecules in the cell surface membrane. How do carrier molecules specifically recognize glucose?
Carrier molecules have specific binding sites that are complementary to the structure of glucose molecules. This allows the carrier molecules to selectively recognize and transport glucose across the cell membrane while excluding other sugars. The specificity of recognition is determined by the shape, size, and chemical properties of both the carrier molecule and the glucose molecule.
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.
Glucose is a molecule that can move across the cell membrane if the concentration of glucose is high or inside the cell than outside the cell then what will happen by the process of diffusion?
glucose molecules will diffuse out of the cell. apex
How can a cell speed up its intake of glucose from the environment?
A cell can speed up its intake of glucose from the environment by increasing the number of glucose transporters on its cell membrane. This allows more glucose molecules to enter the cell at a faster rate. Additionally, the cell can increase its energy consumption to create a higher demand for glucose, driving the need for faster uptake.
If the concentration of glucose is higher inside the cell than the cell then outside the cell then what will happen by the process of diffusion?
Water will move out of the cell. Glucose will not move into the cell without the help of a helper molecule. Glucose molecules will diffuse into the cell.(APEX)
Glucose and no other sugar is transported into cells by protein carrier molecules in the cell surface membrane. How do carrier molecules specifically recognize glucose?
Carrier molecules have specific binding sites that are complementary to the structure of glucose molecules. This allows the carrier molecules to selectively recognize and transport glucose across the cell membrane while excluding other sugars. The specificity of recognition is determined by the shape, size, and chemical properties of both the carrier molecule and the glucose molecule.
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.
Glucose is a molecule that can move across the cell membrane if the concentration of glucose is high or inside the cell than outside the cell then what will happen by the process of diffusion?
glucose molecules will diffuse out of the cell. apex
What are the substances that the cell membrane does not allows to pass?
Usually Ions and charged molecules (salts dissolved in water), large polar molecules (glucose), and macromolecules.
How can a cell speed up its intake of glucose from the environment?
A cell can speed up its intake of glucose from the environment by increasing the number of glucose transporters on its cell membrane. This allows more glucose molecules to enter the cell at a faster rate. Additionally, the cell can increase its energy consumption to create a higher demand for glucose, driving the need for faster uptake.
Describe how glucose molecules enter a cell by facilitated diffusion?
protein
If the concentration of glucose is higher inside the cell than the cell then outside the cell then what will happen by the process of diffusion?
Water will move out of the cell. Glucose will not move into the cell without the help of a helper molecule. Glucose molecules will diffuse into the cell.(APEX)
Why oxygen molecules do not across a cell membrane while glucose molecules do not?
Glucose is too big to pass throught.
Why do molecules easily diffuse across a cell membrane while glucose molecules do not?
Glucose is too big to pass throught.
In order for a cell in a culture to obtain glucose the concentration of glucose must be?
In order for a cell in a culture to obtain glucose, the concentration of glucose must be higher outside the cell than inside. This concentration gradient allows for the process of diffusion, where glucose molecules move passively into the cell. Additionally, if the glucose concentration outside the cell is low, cells may require active transport mechanisms to uptake glucose against the gradient. Overall, maintaining an adequate external glucose concentration is crucial for cellular metabolism and energy production.
How can a cell that consumes glucose speed up its intake of glucose from the environment?
A cell can speed up its intake of glucose by increasing the number of glucose transporters on its membrane. This allows more glucose molecules to enter the cell in a shorter amount of time, facilitating faster uptake. Additionally, cells can also activate signaling pathways to enhance the activity of existing glucose transporters, further increasing the rate of glucose uptake.
What explains why oxygen molecules diffuse across a cell membrane while glucose molecules do not?
Glucose is too big to pass through.
