# Effect of surface area to volume ration on diffusion time in agar cubes

The larger the surface area, the greater the rate of diffusion i think surely that with a larger cube of jelly, the surface is larger so therefore there is a greater rate of diffusion with a larger cube of jelly but im not too sure so i would get someone elses opinion before you write anything. One of the core principles that govern the efficiency of diffusion is the ratio of surface area to volume surface area is the amount of cell membrane available for diffusion you will use agar cubes as cell models begin to change color as the vinegar diffuses into the agar you will time this diffusion process for 3 different sized. The smaller agar cubes will be more efﬁcient in diffusion because smaller agar cubes have a bigger surface area to volume ratio the pink agar cubed immersed in hydrogen chloride (hcl) had a faster process of diffusion than the clear agar cube immersed in potassium manganate (k2mno4 . Clemson biology project cb 1 diffusion 3 4 construct a hypothesis about the effects of the surface area to volume ratio of a cube and the extent diffusion occurs within each cube. If you increase the surface area of a cell relatively to its volume, then the diffusion time will decrease materials: agar cubes, bromothymol blue- ph indicator, vinegar, ruler, spatula, beaker methods: i used agar cubes as cell models.

The question therefore arises of whether volume or surface area affect the diffusion rate separately, or if the surface area to volume ratio is what makes the difference agar, a basic substance containing naoh (a base) and phenolphthalein, was used to model cells for this experiment. What happens to the surface area to volume ratio is there any difference in the rate of diffusion as the size of the agar cubes increases the volume of a living organism is proportional to the number of cells in its body. 5 diffusion and osmosis agar lab intro: once solid, we cut the molds of agar into cubes of 1x1x11, 2x2x11 and 22x3x11 twice this means that the ratio of surface area to volume is vital in cells so that they don’t burst.

Agar cell diffusion use cubes of agar to investigate how size impacts diffusion the surface-area-to-volume ratio decreases (click to enlarge the table below) the vinegar can only enter the cube through its surface, so as that ratio decreases, the time it takes for diffusion to occur throughout the whole volume increases significantly. More the surface area to volume ratio, more is the diffusion surface area to volume ratio, in simple means the size of surface area to the volume of substance that can pass through it at a particular time amoeba and some bacterias are flat and have large surface area to volume ratio so the diffusion rate is very high due to large surface area. Ahmad kamal, syanaz bazil 000592-0049 diffusion in agar cells research question: does different volumes of the blocks which are affect the volume of sodium hydroxide solution diffused into the agar blocks when the volume of the sodium hydroxide solution, concentration of the agar block, concentration of the sodium hydroxide solution, shape of the agar block, and time taken for the diffusion.

- the student compares only the diffusion and not the surface area to volume ratio for example, the student may write, the large cube diffused at 20% while the small cube diffused at 90% as the question is specifically asking for evidence of surface area to volume ratio, it must be included. A practical write-up on the effect of surface area to volume ratio will have on the diffusion of sulfuric acid into agar cubes thinkswap satisfaction guarantee each document purchased on thinkswap is covered by our satisfaction guarantee policy. The effect of surface-area-to-volume ratio on the rate of diffusion not to scratch the surface of the cubes while stirring, have them predict the results and explain their predictions • have students design an experiment to illustrate the effect of surface area on diffusion, using the following materials: o sandwich baggie o. Mar 25th, 11:59 pm the effect of the ratio of surface area to volume on the rate of diffusion in agar blocks the purpose of this experiment was to determine how increasing the surface area to volume ratio (sa:v) affected the rate of diffusion in agar blocks. 17092014 1 irena sionek 2ib difussion in agar cubes – lab report research question what is the effect of surface area on volume ratio on the rate of diffusion of pigment from the agar cube measured by percentage volume of diffusion over time.

Sa to volume practical activity: feedback cut cubes of agar with the length of sides of 20 cm, 15 cm, 10 cm and 05 cm 1 cells divide to form smaller cells to increase the sa/vol ratio 2 increase their surface area by folding, as with the microvilli. Research questionhow does the surface area to volume ratio effect the time it takes for a object to diffusehypothesisthe higher the surface area to volume ratio is, the faster the agar jelly will become clear bleach, a beaker, 3 agar cubes, 1 pages 45 2 nov/2004 34 surface area to volume ratio and the relation to the rate of. The effect of surface area to volume ratio on the rate of diffusion into a cell then” statement predicting what will happen to diffusion rate when the surface area to volume ratio of a cell is increased iv pour enough vinegar into the beaker to cover all cubes 6 use a stopwatch to time 10 minutes 7. A lab experiment on the effects of the surface area-to-volume ratio on the rate of diffusion of materials in and out of the cell on studybaycom - other, essay - machash, id - 100008467 agar cubes in test tubes the purpose of the lab is to determine the affect of the surface area-to-volume ratio on the rate of diffusion of materials in. The sodium hydroxide will mix with the phenolphthalein agar cubes and diffuse into the cubes you will be able to see how much diffusion had occurred and compare the ratios of surface areas to volumes does the ratio of surface area to volume have to do with anything you will then see if more surface area has any effect to the rate of.

## Effect of surface area to volume ration on diffusion time in agar cubes

5:2 would be most effective at diffusion, since it is the bigger ratio which means it has a larger surface area to volume ratio the bigger a cube is, the smaller its surface area to volume ratio is. Calculate surface area to volume ratio for cubes of different sizes and consider the problems faced by large organisms lesson organisation while the cubes are soaking, students can try the calculation of surface area to volume ratio for themselves. The larger the surface area to volume ratio the quicker the full diffusion of the hydrochloric acid into the cube method 1- cut the agar into five different-sized cubes (from 2mm to 10mm) using a sharp razor and calipers on a white tile.

Its volume is equal to cube 2x2x2 (8cm3), but its surface area and volume ratio is bigger (35 instead 30) therefore, naoh diffused to its center whereas into cube 2x2x2 – not as it is essential to a cell to make diffusion as much successive as it could be, their size is of oblong form, not cube. If the surface area of the cell increases, then the rate of diffusion will decrease explaining the hypothesis: when you increase surface area and volume of a cube, the volume increases more rapidly than the surface area.

No brain too small biology sa:v ratio in multicellular organisms tio ciency surface area refers to the outside area of an object, eg it is the area around the outside of a cell unit = cm 2 volume refers to the amount of space inside of the object, eg it is the space inside the cell. The cube that will be most effective at maximizing diffusion will be the cube that has a surface to volume ratio of 4:1 because it has a higher surface area to volume ratio so it is more efficient having a high surface area to low volume will ensure that the inside of the cube will be the most effective at maximizing diffusion. We used agar, a solidifying agent derived from red algae to demonstrate diffusion across certain cell sizes, and why surface area to volume ratio is important what was the purpose of the ppt in the agar block experiment.