help me in the following questions please
1) list 3 precaution which would be needed when doing the vit c experiment
i know two of them 1) conq and volume of DCPIP 2) same conq of vit c by using same solution
2) give 2 ways other than boiling which vit c could be lost?
I know 1) leaving it exposed to air
3)Callus tissue develops into either shoots or roots depending on the relative concentration of the plant
growth regulators used. Use your knowledge of genes to suggest how these plant growth regulators
determine the type of plant tissue formed.
last
could you tell how to ensure the reliabilities when doing the experiments such as betroot, vit c, tensile strength, mitosis, etc...
juice is expired...vit c content will b less
reliability-beetroot...um, all the beetroot discs gta b of same size surface area thickness
volume of distiled water in wich theyr kept needs to b the same
if the experiment is done to see the effect of conc of alcohol-the temp needs to be fixed.
Vit. C-
conc. and volume of DCPIP needs to b kept constant
once a glassware-pipette/burette used, if it has to be used again then it needs to be washed before used and then the solution can be taken in it.
mitosis-
all root tips nearly of same size
making sure the nucleus is stained and not the cytoplasm.this' done by placing the slide on the tissue paper, fold the tissue over and gently press so that all the stain is absorbed.
that's all i can think of for now....ur 3rd question..um i don't know much..i can guess but don't wana say unless im v sure.
hope that helps
:)good luck...
