What is a selectively permeable memberane?

1. What is meant by selectively permeable membrane?
2. How can you describe why membranes are selectively permeable?
3. What is selectively mean?
4. What is selectively permeable membrane class 9?
5. What is a selectively permeable membrane quizlet?
6. What does it mean to say that the membrane is selectively permeable rather than totally permeable?
7. Why is this called a selectively permeable membrane quizlet?
8. What is selective example?
9. What is the meaning of selective participation?
10. What is selectivity in chemistry?
11. What is a selectively permeable membrane and why is it so important that the plasma membrane is selectively permeable?
12. What is osmosis Class 9?
13. Why is plasma membrane called selectively?
14. What does it mean to be selectively or semipermeable quizlet?
15. What does selectively permeable mean where does this occur in the nephron?

What is meant by selectively permeable membrane?

A selectively-permeable membrane is a membrane that allows only some substances and molecules to pass into or leave the cell. An example of a selectively-permeable membrane is the cell membrane. It allows the passage of only certain types of molecules through diffusion and occasionally by facilitated diffusion.

How can you describe why membranes are selectively permeable?

The cell membrane is selectively permeable, meaning it only lets certain things in and out. The structure of the phospholipid bilayer prevents random things from drifting through the membrane, and proteins act like doors, letting the right stuff in and out.

What is selectively mean?

1 : of, relating to, or characterized by selection : selecting or tending to select. 2 : highly specific in activity or effect selective pesticides selective absorption. Other Words from selective Synonyms & Antonyms More Example Sentences Learn More About selective.

What is selectively permeable membrane class 9?

Answer- Plasma membrane called a selectively permeable membrane because it regulates the movement of substances from within to outside of the cell. This means that the plasma membrane allows the entry of some substances while preventing the movement of some other substance.

What is a selectively permeable membrane quizlet?

selectively permeable. -A semipermeable membrane, also termed a selectively permeable membrane, a partially permeable membrane or a differentially permeable membrane, is a membrane that will allow certain molecules or ions to pass through it by diffusion and occasionally specialized "facilitated diffusion.

What does it mean to say that the membrane is selectively permeable rather than totally permeable?

Selective Permeability

Cell membranes only allow some molecules through. This characteristic is why cell membranes are selectively permeable. They are not impermeable (not letting anything pass) nor are they freely permeable (letting everything can pass). This quality allows a cell to control what enters and exits it.

Why is this called a selectively permeable membrane quizlet?

Why is the cell membrane said to be selectively permeable? The cell membrane is said to be selectively permeable because it lets certain substances pass through while restricting the passage of others.

What is selective example?

The definition of selective is choosing carefully. An example of something selective is a college that accepts only the top candidates.

What is the meaning of selective participation?

1 of or characterized by selection. 2 tending to choose carefully or characterized by careful choice.

What is selectivity in chemistry?

Selectivity is the discrimination shown by a reagent in competitive attack on two or more substrates or on two or more positions in the same substrate. It is quantitatively expressed by ratios of rate constants of the competing reactions, or by the logarithms of these ratios.

What is a selectively permeable membrane and why is it so important that the plasma membrane is selectively permeable?

Explanation: Cell membranes are also called selectively permeable membranes, because they are selective in allowing entry of particles into the cell. This property of selective permeability is important because it ensures the survival of the cell.

What is osmosis Class 9?

Osmosis is the passage ot water from a region of high water concentration through a semi-permeable membrane to a region of low water concentration. ... If the medium has a lower water concentration then the cell will lose water by osmosis.

Why is plasma membrane called selectively?

Complete answer:

The plasma membrane is known as a selectively permeable membrane because it has the ability to decide whether to allow substances inside and outside the cell or not. The plasma membrane is able to regulate the movement of substances across the cell because of its phospholipid structure.

What does it mean to be selectively or semipermeable quizlet?

What does selectively permeable (semi-permeable) mean? It is a property of cell membranes that allows some substances to pass through, while others cannot.

What does selectively permeable mean where does this occur in the nephron?

Selective permeability is a property of cellular membranes that only allows certain molecules to enter or exit the cell. ... For example, cells in the kidney expend energy to reabsorb all the glucose, amino acids and vitamins from the glomerular filtrate even against the concentration gradient.