Counter current flow in gills refers to the flow of water moving over the gill filaments in the opposite direction to the flow of blood within the filaments. This arrangement allows for efficient extraction of oxygen from water as it maximizes the concentration gradient between the water and the blood. This means that oxygen is continuously diffusing into the blood along the entire length of the gill filament, making gas exchange more effective.
Counter current flow is more effective because it allows for a greater concentration gradient to be maintained along the entire length of the exchange surface. This maximizes the diffusion of substances from one side to the other, leading to a more efficient exchange of materials. Additionally, counter current flow ensures that the exchange process can continue over a longer period of time, further increasing its efficiency.
Counter current flow allows for a steeper concentration gradient along the entire length of the exchange surface, resulting in a higher diffusion rate of gases. In parallel flow, the concentration gradient is not maintained along the entire length, leading to lower gas exchange efficiency.
The flow of current through a wire is known as electrical current.
No, a current cannot flow in a wire with a free end because there is no complete circuit for the current to flow through. In order for current to flow, there must be a closed loop circuit for the electricity to circulate through.
elelctric current
Counter-current flow is more efficient then parallel flow. Shahzad, MUET Chemical Engineer
A Counter-current flow has more advantages as comapared to a co-current flow.
A jellyfish does not have any circulatory vessels. They use diffusion as their means of circulation. They do not have a closed circulatory system.
The gills take in oxygen through a counter current system its a backwards from high to low setup - ingenious really!
thy have gills that works in a counter current action
Counter current flow is more effective because it allows for a greater concentration gradient to be maintained along the entire length of the exchange surface. This maximizes the diffusion of substances from one side to the other, leading to a more efficient exchange of materials. Additionally, counter current flow ensures that the exchange process can continue over a longer period of time, further increasing its efficiency.
Counter current flow allows for a steeper concentration gradient along the entire length of the exchange surface, resulting in a higher diffusion rate of gases. In parallel flow, the concentration gradient is not maintained along the entire length, leading to lower gas exchange efficiency.
Because of counter-current exchange, fish gills are the most efficient at gas exchange. This is followed by the continuous flow of bird lungs (due to their system of air-sacs). I don't know which animal exactly, but look to the fish for your answer.
Oceans in the southern hemisphere flow counter clockwise. This is hugely due to the Coriolis effect. Gravity also plays a roll in this.
North Equatorial flow clockwise and southern counter-clockwise.
The same as role as lungs, to get oxygen. Only because there is little oxygen in the water the gills have lots of filinents with blood in counter-flow to the water such to maximise surface area and maintain a constant diffusion gradient for the best possible efficiency.
geiger counter