Table of Contents
- 1 Is reached when molecules continue to move and collide but no change in concentration occurs?
- 2 What is it called when concentration is equal but molecules are still moving?
- 3 What is it called when particles move from high concentration to low concentration?
- 4 What determines the net direction of any diffusion process?
- 5 Does the net movement of molecules slow down as equilibrium is reached?
- 6 Is the movement of molecules from high to low concentration?
- 7 What is the continuous movement of particles but no overall change in concentration?
- 8 Is high to low concentration active or passive?
Is reached when molecules continue to move and collide but no change in concentration occurs?
Molecules are in constant movement and collide with each other. The equilibrium is said to be dynamic because molecules continue to move, but despite this change, there is no net change in concentration over time. Both living and nonliving systems experience the process of diffusion.
What is it called when concentration is equal but molecules are still moving?
Since diffusion moves materials from an area of higher concentration to the lower, it is described as moving solutes “down the concentration gradient.” The end result of diffusion is an equal concentration, or equilibrium, of molecules on both sides of the membrane. At equilibrium, movement of molecules does not stop.
Do molecules still move even when there is no concentration difference?
Even when equilibrium is reached, particles do not stop moving across the cell membrane. Although it may seem as if the concentrations are not changing, nearly equal numbers of particles cross the membrane in both directions. This means that there is no net change in the concentration of the substances.
What is it called when particles move from high concentration to low concentration?
Diffusion is the movement of particles from regions of high concentration towards regions of lower concentration.
What determines the net direction of any diffusion process?
What determines the direction of any diffusion process? The relative concentration of the substance in different areas determines the direction of diffusion. Diffusion occurs from regions of high concentrations to regions of low concentration.
Where is the low concentration of dye?
Answer: The correct answer will be option-at the bottom of the cup. Explanation: In the given figure, the mixing of the dye in water has been shown which shows that dye in water gets mixes slowly.
Does the net movement of molecules slow down as equilibrium is reached?
At equilibrium, movement of molecules does not stop. At equilibrium, there is equal movement of materials in both directions.
Is the movement of molecules from high to low concentration?
Diffusion is the movement of molecules from an area of high concentration of the molecules to an area with a lower concentration. Since diffusion moves materials from an area of higher concentration to the lower, it is described as moving solutes “down the concentration gradient”.
How will a person know if the transport mechanism is not working?
Answer: when he/she has no longer strenght to release when he/she/’s riding a bike or when he wants to carry something like things or groceries.
What is the continuous movement of particles but no overall change in concentration?
Chapter 7 VOCABULARY
| A | B |
|---|---|
| DYNAMIC EQUIIBRIUM | A CONDITION WHERE THERE IS CONTINUOUS MOVEMENT OF PARTICLES BUT NO OVERALL CHANGE |
| FACILITATED DIFFUSION | A FORM OF PASSIVE TRANSPORT THAT USES PROTEINS TO MOVE IONS OR SMALL MOLECULES ACROSS THE PLASMA MEMBRANE |
| OSMOSIS | THE DIFFUSION OF WATER |
Is high to low concentration active or passive?
During active transport, substances move against the concentration gradient, from an area of low concentration to an area of high concentration. This process is “active” because it requires the use of energy (usually in the form of ATP). It is the opposite of passive transport.
What is called Brownian motion?
Brownian motion, also called Brownian movement, any of various physical phenomena in which some quantity is constantly undergoing small, random fluctuations. It was named for the Scottish botanist Robert Brown, the first to study such fluctuations (1827).