This spread of particles through random motion from an area of high concentration to an area of lower concentration is known as diffusion. This unequal distribution of molecules is called a
concentration gradient
.
What does it mean to move from an area of high concentration to a low area of concentration?
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 high concentration and low concentration?
High concentration means
the amount of solute is high in the solution
and low concentration means it is low. Amount of solvent is high in low concentration and low in high concentration of solute.
What does area of high concentration mean?
A high concentration of a substance in a solution means
that there’s a lot of it relative to the volume
: the Great Salt Lake has very few fish because of the high concentration of salt.
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 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
.
What is a low concentration?
LCI is defined as
a critical level of emission of a single component reported in μgm−3
, below which a healthy indoor air quality for inhabitants and users during long-term continuous use is established.
What is the meaning of higher concentration of water?
Cells can gain or lose water by the process of osmosis . … The water concentration can be thought of as the
proportion of a solution that is water
. Solutions with a high concentration of solute molecules, such as sugars or salts, have a low concentration of water molecules and vice versa.
Why does water move towards high solute concentration?
Osmosis is a passive transport process during which water moves from areas where solutes are less concentrated to areas where they are more concentrated. The water level on the left is now lower than the water level on the right, and the solute concentrations in the two compartments are more equal. …
How do you determine concentration?
Divide the mass of the solute by the total volume of the solution. Write out the equation
C = m/V
, where m is the mass of the solute and V is the total volume of the solution. Plug in the values you found for the mass and volume, and divide them to find the concentration of your solution.
What is another word for high concentration?
| purity potency | concentration pureness |
|---|
What is the meaning of concentration of solution?
Concentration Defined. A solution is a homogenous (fine) mixture of a substance (called solute) dissolved in another substance (called solvent).
The amount of solute dissolved in a particular amount of the solvent is a crucial parameter
and is called the concentration of the solution.
Is movement with a concentration gradient active or passive?
When a molecule moves down its concentration gradient is it participating in
passive transport
; moving up the concentration gradient requires energy making it active transport.
What are 3 examples of passive transport?
Three common types of passive transport include
simple diffusion, osmosis, and facilitated diffusion
.
What is it called when molecules move from high to low concentration?
Diffusion
is a process of passive transport in which molecules move from an area of higher concentration to one of lower concentration.
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.
