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What are 2 factors that affect the rate of weathering?
The most important factors that determine the rate at which weathering occurs are the type of rock and the climate. Rainfall affects the rate of weathering.
Where in the respiratory tract does gas exchange occur?
The gas occurs by simple diffusion through the cells.
In plant cell where diffusion occurs?
Gas exchange for photosynthesis - CO2 from the air diffuses into the leaf, and 02 diffuses out of the leaf into the air
What are the three types of diffusion?
A great example is perfume sprayed in a room. A person standing 15 ft away wont smell it right away, but after a minute or two (it has to diffuse through the air) the person will smell it. Also, if you drop a sugar cube in a glass of water, that basically gives you a perfect visual aid of diffusion. These are the 5 types that I know of: 1. Simple diffusion- occurs when molecules moves from a higher concentration to a lower concentration through a semi-permeable membrane without the assistance of proteins or use of energy. This is a form of Passive Transport. 2. Facilitated diffusion-occurs when molecules moves from a higher concentration to a lower concentration through a semi-permeable membrane with the assistance of proteins or but not the use of energy. This is a form of Passive Transport. 3. Active transport-occurs when molecules moves from a lower concentration to a higher concentration through a semi-permeable membrane with the assistance of proteins and the use of ATP energy. 4. Endocytosis- large amounts of molecules move toward the inside of a cell. This is a form of Active Transport. 5. Exocytosis- large amounts of molecules move toward the outside of a cell. This is a form of Active Transport.
What are facts about air resistance?
What type of friction is air resistance?fluid friction. Air resistance is fluid friction. Air resistance occurs between the surface of a falling object and the air that surrounds it. Rolling friction occurs when a rounded surface moves over a solid and sliding friction occurs when a solid moves over another solid. Static friction occurs when a solid touches another solid but there is no movement.What two factors affect air resistance?size and shape. Size and shape are the two factors that affect air resistance. Air resistance works with surface area, so the more surface area, the more air resistance. Think about when you drop two pieces of paper: one crumpled and one flat. The crumpled one falls faster because there is less air resistance acting on the paper.
What are 5 factors that affect diffusion?
Concentration gradient: The greater the difference in concentration between two areas, the faster diffusion occurs. Temperature: Higher temperatures generally increase the kinetic energy of particles, leading to faster diffusion. Molecular size: Smaller molecules diffuse more quickly than larger ones, as they can move more easily through spaces. Medium through which diffusion occurs: Diffusion occurs more readily in gases and liquids compared to solids. Surface area: The larger the surface area available for diffusion, the faster the rate of diffusion.
Why diffusion occurs more quickly in a gas than in a liquid?
Diffusion in gases is faster than in liquids because the particles in gas move way faster than in liquids. The gas particles therefore spread out more quickly and diffusion is completed faster.
Why diffusion occurs more quickly today then in the past?
Diffusion occurs more quickly today than in the past due to advancements in technology and transportation. The increased speed and efficiency of transportation methods, such as planes and the internet, allow for faster movement of people, ideas, and goods across larger distances. Additionally, advancements in communication technology enable quick dissemination of information globally, contributing to faster diffusion rates.
Why does diffusion occur and what factors influence the rate of diffusion?
Diffusion occurs because molecules naturally move from areas of high concentration to areas of low concentration in order to reach equilibrium. Factors that influence the rate of diffusion include temperature, concentration gradient, surface area, and the size and shape of the molecules involved.
Does diffusion terminates at hearth?
Diffusion of molecules will not terminate at the hearth, as it is a continuous process that occurs until equilibrium is reached. However, the specific conditions at the hearth, such as temperature and molecular interactions, can affect the rate and extent of diffusion in that area.
Where diffusion occur?
Diffusion occurs on the cell membrane.
What can affect the speed of diffusion?
The speed of diffusion can be affected by the temperature, molecular size, concentration gradient, and the medium through which diffusion occurs. Higher temperatures typically increase the speed of diffusion, while larger molecules diffuse more slowly. Additionally, a steeper concentration gradient across the medium will result in faster diffusion.
How does distance affect how fast diffusion occurs?
Generally, shorter distances result in faster diffusion as particles have less space to travel. This is because diffusion is a process that relies on random motion. Therefore, a shorter distance allows particles to move and collide more frequently, leading to faster diffusion.
Does diffusion occur in the digestive system?
Diffusion occurs when something something something
What influences diffusion of ions across the membrane?
distance involved =diffusion at short distances occurs at a greater rate than diffusion at long distances area involved= diffusion over short distance occurs at a greater rate than diffusion over long distances Barriers=thicker barriers slow down rates of diffusion
Which method occurs in fluids?
Diffusion occurs in fluids, where molecules move from areas of high concentration to lower concentration to reach equilibrium. This process is influenced by factors such as temperature, molecular size, and the concentration gradient.
What occurs in Facilitated diffusion?
movement. In a cell.
