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What condition exists when you have a high concentration of molecules in one place and a low concentration in an adjacent place?
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∙ 16y ago
Concentration Gradient
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∙ 16y ago
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What type of transport is faciliated diffusion?
Neither of these require energy. Diffusion occurs naturally when a higher concentration of a substance exists on one side of a membrane than the other; molecules will enter into the area of lesser concentration until there is an equilibrium on both sides. Active transport requires the energy of the cell.
What is the a major difference between facilitated diffusion and active transport?
Simple diffusion moves molecules from an area of higher concentration to an area of lower concentration without an input of energy. Facilitated diffusion follows the same rules as regular diffusion (higher to lower concentration and no energy input), but uses protein carrier molecules to allow substances that are fat soluble to diffuse through the cell membrane.
What conditions does gas exchange occur?
When the partial pressure between the alveoli and the blood, or between the blood and the tissues, is different - i.e. when a concentration gradient exists.
What are two important passive processes for membrane transport?
Diffusion is a method of natural movement of gas molecules from a region of higher concentration to a region of lower concentration. The difference in concentration is called a concentration gradient.Osmosis is the diffusion of water through a biological membrane. Water molecules move along the concentration gradient from the area of higher water concentration to lower concentration.Facilitated diffusion is when proteins within the cell carry or escort certain materials or substances in or out of the cell.
What will happen if a blood cell is placed in a hypertonic salt solution?
A hypertonic solution is a solution that has a high concentration of solute, in this case the solute being salt. When a red blood cell is placed in a hypertonic solution, since the salt concentration is higher in the outside of the cell, the water concentration is lower there as well. Therefore, through the process of osmosis, the water diffuses from the inside of the cell to the outside of the cell.
What condition exists when you have a high concentration of molecules in one place and a low concentraition of molecules in an adjacent place?
weather
What condition exists when you have a high concentration of molecules in one place and a low concentration of moleculse on an adjacent place?
Diffusion gradient
What exists when molecules are diffusing randomly but equally in all directions?
A state of equilibriumThe net diffusion of molecules requires that there be a difference in concentration, called a concentration gradient, between two points. Once the concentration of molecules is the same throughout the solution.Johnson, Michael D. "3 Structures and Function of Cells." Human Biology: Concepts and Current Issues. San Francisco: Pearson Benjamin Cummings, 2008. 57. Print.
What element exists as molecules containing eight atoms?
Elements normally do not form "molecules" apart from 3 gaseous elements which form diatomic molecules. However, Sulfur exists in molecules comprising 8 atoms, while Phosphorous exists as a 4 atom molecule.
Which atoms exist as triatomic molecules?
Ozone exists as triatomic molecules. O3
What element exists as x4 molecules?
phosphorus
Where the ozone layer exists?
The ozone layer exists in the stratosphere. It is a pool of ozone molecules.
What exists when no net change in concentration results from diffusion?
osmosis
What exists in all polar molecules?
A hydrogen bond
Does Na and Hg in the vapour state existas monoatomic molecules?
No, Na and Hg in the vapor state do not exist as monoatomic molecules. They exist as diatomic molecules. Na exists as Na2 and Hg exists as Hg2 in the vapor state.
Why does hydrogen bonding exists between water molecules but not between hydrogen sulfide molecules?
you should know it
What molcules are in argon?
There are no argon molecules. It exists in the form of single atoms.
