0
What else can I help you with?
When some substances can pass across them but others cannot biological membranes are said to have?
They are said to have semi-permeable membranes.That is,they allow some substances to pass through & prevent others due to the nature & composition of that substance.
When some substances can pass across them but others can not what are biological membranes said to have?
selective permeability or semi-permeability
What does it mean to say most biological membranes are selectively permeable?
It means that biological membranes allow only specific substances to pass through while blocking others. This selectivity is achieved through the presence of different types of transport proteins and lipid components in the membrane. This property is crucial for maintaining cell integrity and regulating the flow of materials in and out of the cell.
State one possible reason a certain substance cannot pass across a cellmembrane?
One possible reason behind the inability of a certain substances to pass across a cell membrane is molecule size.
Why does the walls of the capillaries and the alveoli have to be thin?
If their walls are too thick, substances like oxygen and nutrients and waste cannot pass across the cells into or out of the body.
When some substances can pass across them but others cannot?
membrane
Biological membranes are said to have what When some substances can pass across them but others cannot?
Biological membranes are said to have selectively permeable properties. This means that they allow certain substances to pass through while blocking the passage of others, based on their size, charge, and solubility. This selective permeability is crucial for maintaining cellular homeostasis and regulating the internal environment of cells.
What does it mean for a membrane to be semipermeable and how does this property affect the movement of substances across it?
A semipermeable membrane allows certain substances to pass through while blocking others. This property affects the movement of substances across the membrane by selectively allowing only certain molecules or ions to pass through, based on their size, charge, or other properties. This helps regulate the flow of substances in and out of cells or compartments, maintaining balance and allowing for essential processes to occur.
Does a permeable membrane will let substances pass through it?
Yes, a permeable membrane allows certain substances to pass through while blocking others based on their size and chemical properties. It enables the selective transport of molecules, ions, or particles across a barrier, such as in biological systems or in water filtration processes.
Do all substances pass freely between the intracellular and extracellular fluids through a phospholipid bilayer?
No, not all substances can pass freely through the phospholipid bilayer of a cell membrane. Small, non-polar molecules like oxygen and carbon dioxide can diffuse across easily, while larger molecules and charged ions require specialized transport mechanisms such as channels or carriers to move in and out of cells.
What is the skin of the cell body acts like a screen letting some substances pass in and out while blocking others?
The skin of the cell bodyl; acts like a screen,letting some substances pass in and out while blocking others
What characteristics of cell membrane allows for some substances to pass through but not others?
wwww
