This is an exercise used to show the osmosis process, and can also be used to determine the salt content of the potato. Each time you put a slice of potato into a different concentration of salt water, you would need to check the feel of it before and after to see if it has become 'flacid' (having lost water the potato cells become flacid or floppy), or if the potato has swollen up. If the potato has lost water, this means that there is more salt outside the potato cells than in it, if it gains water then there is more salt inside the cells than in them, and if it stays the same- you have found the concentration of salt in your potato. Osmosis states that molecules will attempt to even out the osmotic gradient. For example if you get a saucer of water and place a teaspoon of sugar in the centre of the water then let it sit for a number of hours, when you come back the sugar should have diffused throughout the water so there is an equal amount of sugar throughout the solution. In cells, this process is used constantly to maintain the balance of molecules in the body. In the case of the potatoes; the cells can only take in a certain amount of water before they become plasmaloysed and cannot take anymore water, they can also on lose a certain amount of water and are flacid.
At very low soap concentrations, the cleaning effect may be weaker compared to higher concentrations. This is because lower soap concentrations may not produce enough surfactants to effectively break down oils and dirt. It's generally recommended to use the recommended amount of soap for optimal cleaning results.
no
The PTT test can be used to monitor the effect of heparin on a patient's coagulation system.
It would make the greenhouse effect stronger.
Alcohol suppresses the respiratory reflex at high blood concentrations.
cherry tomatoes have an interesting effect
the increased CO2 levels since the destruction of forests will be fixed by photosynthesis
The standard addition method is typically used in analytical chemistry when analyzing samples with unknown concentrations, where a known amount of standard solution is added to the sample to create a series of solutions with different concentrations. This method is particularly useful when the matrix of the sample interferes with other quantitative methods.
They involving in water balancing mainly.Also aid to balance ion concentrations.
ion size
stomatal movements( it depends on light, temperature, condition of the plant, glucose & sucrose concentrations, ion concentrations....) , intra cellular gaps in spongy paranchyma, atmospheric & plant pressure, amount of gases in the atmosphere, ...... are the factors which effect the gas exchange.
depends on the exercises performed. however, increased concentrations as a result of long term adaptations of the body for exercise.