Osmosis Lab Report
Experimental Laboratory Report:
An investigation into the rate of osmosis
Liana Gohery - 98332250
12/12/2014
Word count - ………3000………..
1. Abstract
This study was conducted to investigate the effect of concentration gradients on the rate of osmosis. Osmosis is the cellular transport of water, this study was conducted to show the significance of the rate at which this occurs. Dialysis bags were filled with three different concentrations of sucrose solutions and two with water. They were then completely immersed in water with the exception of one dialysis bag, which was filled with water and immersed in a sucrose solution. The weight of the bags were then monitored and recorded at regular 15-minute intervals. The variety of concentrations …show more content…
The aims of this experiment were to specifically assess the activity of osmosis through a selectively permeable membrane and calculate the effects that different concentration gradients have on the rate activity occurring, using a method called dialysis tubing. Osmosis is a passive form of transportation as it requires no energy but a concentration gradient must be present between an area of high water potential and an area of low water potential. It is commonly defined as the net movement of water molecules through a cell membrane and plays a vital role in many bodily functions such as aiding digestion, filtration and maintaining homeostasis …show more content…
The kidneys are the urine-forming organs of the body; they allow the body to remove toxins. Osmolarity in the loop of Henley s crucial for this function and is adaptive feature of mammalian and avian nephrons, which allow the kidneys to reabsorb more water through osmosis. The loop of Henley absorbs around 15% of the body’s filtered water is reabsorbed here dips into the medullar where there is a high concentration of NaCl, this creates a large vertical concentration gradient. It is this that allows the body to maintain water in hypertonic environments and remove excess water in hypotonic environments. (Sherwood, et al., 2012). This allows the mammalian body to regulate the concentration of their urine in order to maintain internal homeostasis. DESERT ANIMALS
An investigation into the rate of osmosis
Liana Gohery - 98332250
12/12/2014
Word count - ………3000………..
1. Abstract
This study was conducted to investigate the effect of concentration gradients on the rate of osmosis. Osmosis is the cellular transport of water, this study was conducted to show the significance of the rate at which this occurs. Dialysis bags were filled with three different concentrations of sucrose solutions and two with water. They were then completely immersed in water with the exception of one dialysis bag, which was filled with water and immersed in a sucrose solution. The weight of the bags were then monitored and recorded at regular 15-minute intervals. The variety of concentrations …show more content…
The aims of this experiment were to specifically assess the activity of osmosis through a selectively permeable membrane and calculate the effects that different concentration gradients have on the rate activity occurring, using a method called dialysis tubing. Osmosis is a passive form of transportation as it requires no energy but a concentration gradient must be present between an area of high water potential and an area of low water potential. It is commonly defined as the net movement of water molecules through a cell membrane and plays a vital role in many bodily functions such as aiding digestion, filtration and maintaining homeostasis …show more content…
The kidneys are the urine-forming organs of the body; they allow the body to remove toxins. Osmolarity in the loop of Henley s crucial for this function and is adaptive feature of mammalian and avian nephrons, which allow the kidneys to reabsorb more water through osmosis. The loop of Henley absorbs around 15% of the body’s filtered water is reabsorbed here dips into the medullar where there is a high concentration of NaCl, this creates a large vertical concentration gradient. It is this that allows the body to maintain water in hypertonic environments and remove excess water in hypotonic environments. (Sherwood, et al., 2012). This allows the mammalian body to regulate the concentration of their urine in order to maintain internal homeostasis. DESERT ANIMALS