Question

What factors should be kept constant when experimenting on Beetroot cells to find the permeability of beetroot cell membranes?

Answer 1

first thing to be known is they show anomalous secondary growth..!!

Answer 2

can we say umh..length of time and volume of distilled water in which beetroot cells are kept?

Answer 3

well i learnt about the effect of temperature on the cells of beet root as it contains betalins in it..!!

i need a day time so that i can ask my teacher about it and let you know tomorrow as she might be knowing it..:-)

Answer 4

ok...thnx :)

Answer 5

@SyedMohammed98 Do you know what permeability means in this instance?

Answer 6

yeh increasing the temperature will increase the permeability..as increased red pigment will be released from cell membranes of betroot cells....because their cell membranes as well as carrier protiens are deformed beause of high temperature

Answer 7

@SyedMohammed98 I meant the general definition. Simply the amount of substance X that can go through the cell membrane in time Y.

Anyway, look at it this way: You have two huge rooms filled with 1000 people each. One room as a door .5 meters wide and the other has a door 10 meters wide. If people are trying to leave the room, which room will empty first?

So, in terms of a cells, would it be fair to see how much of something goes through the membrane of two cells that are very different in size?

Answer 8

I am not comparing the permeability of two beetroot cells ...m just comparing it with temperature.

Answer 9

@SyedMohammed98 You are missing my point. The question is not asking what temp does to permeability. It asks what factors should be kept the same in the experiment.

I'll relate it directly to temp, but in a different way. If we are looking at how fast two types of water (water with no salt vs. ocean water) will freeze when place at -10 C, would it be fair to compare a liter of ocean water to a decaliter of water without salt?

No. Why? Because there is way more volume in a decaliter and even though water without salt will begin to freeze at higher temps that ocean water, the ocean water will still freeze first because there is less.

Answer 10

So should you use beets of vastly different sizes?

Answer 11

hmmm thats a point..

Answer 12

@SyedMohammed98 I pretty much have already. I don't want to give explicit answers. I will say this though. In any experiment you have independent and dependent variables. If you are interested in temp vs. permeability, should anything besides temp change? If something besides temp changes between experiments can you be sure that temp was the only factor altering permeability?

With that I have to leave and go to work. Cya.

Answer 13

thnx for the help...take care