Homeostasis refers to the maintenance of a stable internal environment in an organism. The permeability of the plasma membrane allows for the selective movement of substances like oxygen and glucose into cells to help maintain homeostasis by regulating internal conditions.
Plasma membrane
Oxygen molecules are small and nonpolar, which allows them to easily pass through the hydrophobic lipid bilayer of the cell membrane via simple diffusion. Glucose molecules, on the other hand, are larger and polar, making it more difficult for them to move through the nonpolar interior of the lipid bilayer. They require specific transport proteins or channels to facilitate their movement across the membrane.
Glucose is diffused through facilitated diffusion in the cell membrane. It is oxidised by glycolysis in the cytoplasm and then the products either go through the mitochondria if oxygen is present or goes through fermentation in the cytosoplasm if no oxygen.
A semipermeable membrane is a large glucose molecule that requires facilitated diffusion but an oxygen molecule does not.
Homeostasis refers to the maintenance of a stable internal environment in an organism. The permeability of the plasma membrane allows for the selective movement of substances like oxygen and glucose into cells to help maintain homeostasis by regulating internal conditions.
The membrane is selectively permeable if it only allows certain substances like water, oxygen, carbon dioxide, and glucose to pass through while blocking others based on size, charge, or other properties.
A large glucose molecule requires facilitated diffusion but an oxygen molecule does not is a semipermeable membrane.
Plasma membrane
Oxygen molecules are small and nonpolar, which allows them to easily pass through the hydrophobic lipid bilayer of the cell membrane via simple diffusion. Glucose molecules, on the other hand, are larger and polar, making it more difficult for them to move through the nonpolar interior of the lipid bilayer. They require specific transport proteins or channels to facilitate their movement across the membrane.
Glucose is too big to pass throught.
Glucose is too big to pass through.
Glucose
Glucose is diffused through facilitated diffusion in the cell membrane. It is oxidised by glycolysis in the cytoplasm and then the products either go through the mitochondria if oxygen is present or goes through fermentation in the cytosoplasm if no oxygen.
Glucose is too big to pass throught.
A semipermeable membrane is a large glucose molecule that requires facilitated diffusion but an oxygen molecule does not.
The Plasma membrane.