Which of the following does not affect diffusion rates across a membrane?
The factor that does not affect the rate of diffusion are the electrical charges of the diffusion particles.
Why is there no pressure change?
Why do you think there was no pressure change? There is no net movement of water because the solute concentrations are the same.
What happens if a membrane is impermeable to solutes?
If a membrane is impermeable to solutes, which of the following is true? Osmosis will not occur. Water will move toward the more concentrated solutes.
Is osmotic pressure generated if solutes diffuse freely?
A reflection coefficient of 0 means a solute can freely permeable, and the solute can no generate osmotic pressure across the membrane. The compartment with the greatest osmotic pressure will pull water in and tend to equalize the solute concentration difference between the compartments.
Which of the following conditions does not affected by diffusion?
Answer and Explanation: C. The amount of energy available for transport molecules does not affect the rate of diffusion.
On which of the following does diffusion not depend on?
1. On which of the following does diffusion not depend on? Explanation: Diffusion depends on the temperature, concentration difference as atoms diffuse from higher concentration region to lower concentration region, diffusion distance. It does not depend on pressure.
Why did the sodium transport stop?
Why did the sodium transport stop before the transport was completed? You correctly answered: The ATP was depleted.
Which of the following would not affect the rate of facilitated diffusion?
You correctly answered: Movement is passive and down a concentration gradient. You correctly answered: all of the above. Which of the following would not affect the rate of facilitated diffusion? You correctly answered: the amount of intracellular ATP.
What substance can move across a barrier by osmosis?
Water Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ).
How does pressure affect osmosis?
Factors Affecting the Rate of Osmosis Pressure – The more the pressure, the faster the molecules will move for they are being pushed faster across a low concentration.
What affects osmotic pressure?
Osmotic pressure is affected by concentration and temperature. Concentration of solute and temperature each affect the amount of pressure created by the movement of water across a membrane. Higher concentrations and higher temperatures increase osmotic pressure.
Which one of the following is not a result of osmosis?
So the correct answer is 'Gravitational potential'.
What factors affect osmosis?
The factors affecting the rate of osmosis include:
- Pressure.
- Temperature.
- Surface Area.
- Water Potential.
- Concentration gradient.
What causes the osmosis process to stop?
If the membrane is highly permeable to solute as well as to water, no water flow will occur and, therefore, the externally applied pressure required to stop osmosis is zero.
Which factors does not affect the rate of diffusion?
The electrical charges of the diffusion particles are the only factor that does not have an effect on the rate at which diffusion occurs.
What are the 4 factors that affect the rate of diffusion?
The rate of diffusion is affected by the concentration gradient, membrane permeability, temperature, and pressure.
Which of the following enables ions such as sodium to cross a plasma membrane?
Answer is A: the glycocalyx refers to molecules in the plasma membrane thathave a carbohydrate chain attached (prefix “glyco-”).
Why did the addition of glucose carriers have no effect on sodium or potassium transport?
In other words, potassium needs to be present in order for sodium to be transported. Explain why the addition of glucose carriers had no effect on sodium or potassium transport. This is because the glucose carriers behave independently of the sodium/potassium pump.
Which of the following is not needed in facilitated diffusion?
Facilitated diffusion is the transport of substances across a biological membrane from an area of higher concentration to an area of lower concentration with the help of a transport molecule. Since substances move along the direction of their concentration gradient, chemical energy is not directly required.
Which of the following would not diffuse through the plasma membrane by means of simple diffusion?
Which of the following would NOT diffuse through the plasma membrane by means of simple diffusion? Glucose, a small polar solute, uses a membrane transporter (a protein carrier) to cross the plasma membrane via facilitated diffusion.
What affects osmosis?
The factors affecting the rate of osmosis include: Pressure. Temperature. Surface Area. Water Potential.
What factors affect osmotic pressure?
The factors affecting the rate of osmosis include:
- Pressure.
- Temperature.
- Surface Area.
- Water Potential.
- Concentration gradient.
What causes a decrease in osmotic pressure?
Decreased intravascular osmotic pressure most commonly results from decreased concentrations of plasma proteins, particularly albumin. Hypoalbuminemia reduces the intravascular colloidal osmotic pressure, resulting in increased fluid filtration and decreased absorption and culminating in edema.
What causes osmotic pressure to increase or decrease?
Osmotic pressure is the pressure created by water moving across a membrane due to osmosis. The more water moving across the membrane, the higher the osmotic pressure.
Which of the following statement is incorrect about osmosis?
The incorrect statement about osmosis is- i. It occurs only in plants. In osmosis, the diffusion of water molecules takes place from a solution of higher concentration to a solution of lower concentration through a semi-permeable membrane. Thus, a concentration gradient should be present for the osmosis to happen.
What does not affect the rate of reaction?
One of the factors which do not affect the rate of the reaction is temperature. One of the factors which do not affect the rate of the reaction is temperature.
What are the factors affecting osmosis?
The factors affecting the rate of osmosis include:
- Pressure.
- Temperature.
- Surface Area.
- Water Potential.
- Concentration gradient.
Which of the following factor does not affect the rate of simple diffusion?
Complete answer: The electrical charges of the diffusion particles are the only factor that does not have an effect on the rate at which diffusion occurs.
Which of the following molecules can pass through the plasma membrane by simple diffusion check all that apply?
Oxygen and carbon dioxide and most lipids enter and leave cells by simple diffusion.
What are the four main factors involved in the movement of ions across the cell membrane in the steady state condition?
Passive and active transport are vital for the movement of nutrients and other substances in a cell. Discover the tiny world of cell transport with the concentration gradient, simple diffusion, facilitated diffusion, osmosis, and the sodium-potassium pump.