All the above statements are included in the definition, but define certain aspects of it.Semi-permeable membranes are very thin layers of material which allow some things to pass through, but prevent others. They allow small molecules like oxygen, water, amino acids etc.
Ive also went over all the microscope slides that are listed in the practical book and learning the topic that corresponds with each of the microscope slide. Anamolies are including in range bars, they are avoided in the mean.
However, in biology, it's difficult to be certain whether something is an analomy, so as long as it's not MASSIVELY far off the trend, include it, if not, make up a similar result.
to pass through but will not allow larger molecules like sucrose, starch, protein etc. A region of high concentration of water is either a very dilute solution of something like sucrose or pure water.
In each case there is a lot of water: a high concentration of water.
I only did two experiments per independent variable in physics and made up the third and it was fine.
Anamolies are including in range bars, they are avoided in the mean.The plant cells are different from animal cells as they contain chloroplast which contains chlorophyll.All green plants have chlorophyll in their leaves and with the help of the chlorophyll, they are able to trap the light energy from the sun and convert it into chemical energy in …are you just going to go over the entire curriculum before the practical analysis exam or just go over SD and t test etc? my teachers are completely lost so they're throwing a bunch of ranom stuff at us.I honestly don't know what to do after seeing that spec paper...The cells chosen for study will be taken from potato tubers. Osmosis is the passage of water from a region of high water concentration through a semi permeable membrane to a region of low water concentration.This definition contains three important statements:a) It is the passage of water through a semi permeable membraneb) It is the passage of water from a region of high water concentrationc) It is the passage of water to a region of low water concentration.A region of low water concentration is the opposite of the above, i.e.a very high concentration of sucrose solution: a low water concentration.To find out more about this service visit our CPD page.SSERC, in partnership with SQA, have produced teacher/technician guides that provide background information to teachers/lecturers.