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Diffusion in pregnancy is the process by which nutrients and wastes are transported via the placenta between mother and baby.
and so that is how diffusion takes place in the placenta. ediot.
has villi to increase surface area
tin walls so less distance for substances to diffuse
good blood supply maintaning an concentration gradient
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Does stirring increase the rate of diffusion?
Stirring can increase the rate of diffusion by helping to distribute particles more evenly throughout a solution, reducing the distance that particles need to travel to reach each other. This, in turn, can lead to faster mixing and increased contact between different substances, enhancing the rate of diffusion.
What is the effect of the density of liquid on the rate of diffusion?
The increase in density will decrease the rate of diffusion. There is an inverse relation between density and rate of diffusion.
What is diffusion rate proportional to?
The diffusion rate is directly proportional to the concentration gradient, the surface area available for diffusion, and the permeability of the membrane through which diffusion occurs.
How do temperature effect the rate of diffusion?
higher temp = higher rate of diffusion
Does hydrogen gas have a low rate of diffusion?
No, it is the lightest gas of the universe so has the highest rate of diffusion.
What is the relationship between surface area to volume ratio and the rate of diffusion?
The higher the ratio, the faster the rate of diffusion
What influences the rate of diffusion?
The rate of diffusion is influenced by the concentration gradient, temperature, molecular size, and the medium through which the particles are diffusing. A steeper concentration gradient, higher temperature, smaller molecular size, and a less dense medium all tend to increase the rate of diffusion.
Does a temperature increase increase the rate of diffusion?
Yes, increasing temperature generally increases the rate of diffusion because it causes the molecules to move faster and collide more frequently, leading to increased diffusion.
Effect of the presence of other molecules on the diffusion of a given substance?
The presence of other molecules can affect the diffusion of a given substance by changing the concentration gradient, which in turn affects the rate of diffusion. If other molecules are blocking the pathway or binding to the diffusing substance, diffusion may be slowed down. On the other hand, if the other molecules are helping to carry the diffusing substance, diffusion may be facilitated.
Does a larger distance does it speed up the rate of diffusion?
No, increasing the distance between particles does not speed up the rate of diffusion. In fact, diffusion rate is influenced by factors such as concentration gradient, temperature, and particle size but not necessarily distance alone. The rate of diffusion is generally slower over larger distances.
How does surface area to volume ratio of a cell affect rate of diffusion?
The surface area to volume ratio of a cell affects the rate of diffusion in that the higher the ratio, the faster the rate of diffusion. This is a directly proportional relationship.
As partial pressure increases what happens to the rate of diffusion?
As the partial pressure increases, the rate of diffusion also increases. This is because there is a greater concentration gradient driving the movement of molecules from high to low pressure areas, leading to faster diffusion.
