Table of Contents
- 1 WHAT DO concentration gradient and diffusion have in common?
- 2 What is a concentration gradient similar to?
- 3 What is the major difference between facilitated diffusion and passive diffusion?
- 4 What three factors affect the concentration gradient?
- 5 What are 3 types of diffusion?
- 6 Is simple diffusion or facilitated diffusion faster?
- 7 How are concentration gradients used to keep us alive?
- 8 How are gases involved in the concentration gradient?
WHAT DO concentration gradient and diffusion have in common?
The concentration gradient therefore represents the concept that, just as a ball rolls down a slope, during diffusion molecules move down the concentration gradient. Higher concentration gradients will result in higher rates of diffusion. As the molecules move the gradient evens out until equilibrium is reached.
How is a concentration gradient related to diffusion and equilibrium?
The difference in the concentrations of the molecules in the two areas is called the concentration gradient. The kinetic energy of the molecules results in random motion, causing diffusion. At equilibrium, movement of molecules does not stop. At equilibrium, there is equal movement of materials in both directions.
What is a concentration gradient similar to?
Similar to simple diffusion, it is driven by a concentration gradient and equilibrium is attained when there is no longer a net movement of molecules between the two areas. In many cases, though, the concentration gradient is not enough factor in passive transport.
What type of diffusion is concentration gradient?
passive transport
A concentration gradient occurs when the concentration of particles is higher in one area than another. In passive transport, particles will diffuse down a concentration gradient, from areas of higher concentration to areas of lower concentration, until they are evenly spaced.
What is the major difference between facilitated diffusion and passive diffusion?
Table: Simple vs Facilitated Diffusion
| Simple Diffusion | Facilitated Diffusion |
|---|---|
| Example of simple diffusion: passive transport of small nonpolar molecules across the plasma membrane | Example of facilitated diffusion: passive transport of glucose and ions into and out of the cell |
What is the concentration of gradient?
The difference in the concentration of a substance between two areas is called the concentration gradient . The bigger the difference, the steeper the concentration gradient and the faster the molecules of a substance will diffuse.
What three factors affect the concentration gradient?
Several factors affect the rate of diffusion of a solute including the mass of the solute, the temperature of the environment, the solvent density, and the distance traveled.
How do you explain concentration gradient?
The difference in the concentration of a substance between two areas is called the concentration gradient . The bigger the difference, the steeper the concentration gradient and the faster the molecules of a substance will diffuse. The direction of diffusion is said to be ‘down’ or ‘with’ the concentration gradient.
What are 3 types of diffusion?
The three types of diffusion are – simple diffusion, osmosis and facilitated diffusion.
- (i) Simple diffusion is when ions or molecules diffuse from an area of high concentration to an area of low concentration.
- (ii) In osmosis, the particles moving are water molecules.
What are the two basic types of diffusion?
Diffusion can be classified into two main types: Simple diffusion and facilitated diffusion.
Is simple diffusion or facilitated diffusion faster?
The speed of simple diffusion is relatively low. The speed of facilitated diffusion is relatively higher. The process of simple diffusion is not solute specific. Facilitated diffusion is directed by the specificity between solute and carrier molecules.
How is diffusion related to the concentration gradient?
Diffusion is the movement of molecules from an area of high concentration of the molecules to an area with a lower concentration. The difference in the concentrations of the molecules in the two areas is called the concentration gradient. Diffusion will continue until this gradient has been eliminated.
How are concentration gradients used to keep us alive?
Human lungs and fishes’ gills both use concentration gradients to keep us alive. Because oxygen follows the rules of concentration gradients just like any other substance, it tends to diffuse from areas of high concentration into areas of low concentration. That means that it diffuses from the air into our oxygen-depleted blood.
How is osmosis similar to a concentration gradient?
Osmosis and concentration gradient Osmosis is very similar to diffusion as both involve the movement of particles along a concentration gradient. The actual difference is, which particle is moving. In osmosis, the solvent moves through the membrane while in diffusion, the solute moves through the membrane.
How are gases involved in the concentration gradient?
Gases also involve in concentration gradient similarly to particles dissolved in different liquids. Humans and other living organisms obtain oxygen from their lungs/gills as oxygen also obeys the law of the concentration gradient. Lungs contain alveoli where the air is trapped when we breathe in.