What are the factors affecting the rate of diffusion in plants?
Diffusion of substances plays an important role in cellular transport in plants. Rate of diffusion is affected by concentration gradient, membrane permeability, temperature, and pressure. Diffusion takes place as long as there is a difference between the concentrations of a substance across a barrier.
What is the diffusion of plants?
“Diffusion is the process of movement of molecules from a region of higher concentration to a region of lower concentration.” Diffusion is a very important process for photosynthesis where carbon dioxide from the stomata diffuses into the leaves and finally into the cells.
How does diffusion happen in plants?
The concentration of carbon dioxide inside a leaf is therefore low during photosynthesis. The higher concentration of carbon dioxide in the air around the plant causes the gas to move into the leaf by diffusion. It diffuses through small pores called stomata. This causes oxygen to diffuse out of the leaf into the air.
How is rate of diffusion calculated?
rate(gas A) × √molar mass(gas A) = rate(gas B) × √molar mass(gas B) This means that the relative rate of diffusion of two gases can be used to determine their relative molecular mass (or molar mass). The number of molecules that escape per unit time is equal to the number of molecules that hit the orifice.
What are the factors needed for maintaining the direction of diffusion in plant?
Answer Expert Verified Concentration gradient between the cells is the major factor which is required for the maintenance of direction of direction in the plants. The gradient of the cell membrane should be different so that direction of diffusion can be effectively maintained.
Do plants rely on diffusion?
Diffusion also occurs in plant cells. The process of photosynthesis that occurs in plant leaves depends on the diffusion of gasses. Carbon dioxide diffuses from the air through tiny pores in plant leaves called stomata. Oxygen produced by photosynthesis diffuses from the plant through the stomata into the atmosphere.
How is the rate of diffusion in plants affected?
The rate of diffusion is affected by various factors like temperature and pressure, concentration gradient, separating membrane’s permeability etc. Transportation in plants is an important and natural phenomenon which takes place in all the higher plants.
How are surface area and volume ratio related to diffusion?
That’s why, it was concluded that increasing surface area and volume ratio, increases the rate of diffusion. Thus, surface area and volume ratio is proportional to rate of diffusion. As the time taken for diffusion to be completed is measured by an observer, errors due to observer are possible.
How is the rate of diffusion related to distance traveled?
the rate of diffusion is inversely proportional to distance traveled (also a function of resistance). For example, some typical diffusion rates for water are 10 m – 0.1 sec; 100 m -1 sec; and 1 mm – 100 sec.
What is the definition of diffusion in chemistry?
Diffusion is the net movement of molecules or ions of a given substance from a region of higher concentration to that of lower one by virtue of their kinetic energy. The movement continues till their respective concentrations become uniform and a state of dynamic equilibrium is achieved between the two phases.