Which of the following is necessary for diffusion to occur quizlet?
in order to diffuse, the passage across the membrane must be enabled or helped. moves solute from areas of low concentration to high concentration (against gradient). opposite of diffusion; requires transport protein and energy (ATP).
Which of the following is true of diffusion?
The correct answer is b. Molecules will move from high to low concentration until equilibrium is reached. This is a passive process, so it does not require energy.
What is correct diffusion?
Diffusion is defined as a spontaneous movement of molecules to a region of low concentration from the region of high concentration of those molecules. Diffusion is slow process that gets affected by distance as higher distance shows lower rate of diffusion. Thus, the correct answer is ‘option a).
How do you describe diffusion?
Diffusion is the process of movement of molecules under a concentration gradient. The molecules move from a region of higher concentration to a region of lower concentration until the concentration becomes equal throughout. Liquid and gases undergo diffusion as the molecules are able to move randomly.
What is called diffusion with example?
Diffusion, process resulting from random motion of molecules by which there is a net flow of matter from a region of high concentration to a region of low concentration. A familiar example is the perfume of a flower that quickly permeates the still air of a room.
What is diffusion give two examples?
Perfume is sprayed in one part of a room, yet soon it diffuses so that you can smell it everywhere. A drop of food coloring diffuses throughout the water in a glass so that, eventually, the entire glass will be colored. Water diffuses into cooking noodles, making them bigger and softer. …
What are the 4 different types of diffusion?
each group a different type of diffusion (relocation, hierarchical, contagious, or stimulus). Each group should come up with one example of diffusion for each of the four different types of scale: local, regional, and global.
How many types of diffusion are there?
Three types of diffusion are distinguished, viz., molecular, Brownian, and turbulent. Molecular diffusion occurs in gases, liquids, and solids; both diffusion of molecules of extraneous substances (impurities) and self-diffusion are observed. Molecular diffusion occurs as a result of thermal motion of the molecules.
What are the 5 types of diffusion?
Ideas spread when people move. You just studied 5 terms! Relocation, expansion, contagious, hierarchical, and stimulus diffusion.
What are the factors that affect diffusion?
The rate of diffusion
| Factor | Reason |
|---|---|
| The temperature | The higher the temperature, the more kinetic energy the particles will have, so they will move and mix more quickly. |
| The surface area of the cell membrane separating the different regions | The greater the surface area, the faster the rate of diffusion. |
Why does diffusion occur?
What causes diffusion? In gases and liquids, particles move randomly from place to place. The particles collide with each other or with their container. This makes them change direction.
Where does diffusion occur in the body?
The diffusion of chemicals and gases in and out of cells is an essential activity in human organs. Diffusion of oxygen and carbon dioxide gas occurs in the lungs. Diffusion of water, salts, and waste products occurs in the kidneys. Diffusion of calcium from food into cells occurs in the intestines.
What are some examples of diffusion in everyday life?
10 Examples Of Diffusion In Everyday Life
- Perfumes/Incense Sticks.
- Helium Balloons.
- Tea Bags.
- Soda/Cold Drinks.
- Breathing.
- Air Pollution.
- Transport Of Minerals and Biomolecules in Plants and Animals.
- Removal of Toxins and Waste Substances from Our Body.
Why diffusion is faster in gases?
Diffusion in gases They eventually spread through the whole room from an area of high concentration to an area of low concentration. Diffusion in gases is quick because the particles in a gas move quickly. It happens even faster in hot gases because the particles of gas move faster.
In which state of matter process of diffusion is faster?
gases
Which type of diffusion is very slow?
The diffusion of a solid in another solid is a very slow process because the particles in solids can not move from their positions. the particles can show a little vibrations about their fixed position. due to lack of sufficient movements in particles of solids,the diffusion of solids in solids is a slow process.
Why diffusion in solid is very slow?
Diffusion is a slow process in solids because the particles do not move from their fixed positions and only vibrate.