biology experiment? Watch

This discussion is closed.
nafan
Badges: 0
Rep:
?
#1
Report Thread starter 15 years ago
#1
hey, can anyone help me with this, i really need some help with this question:

"you are required to plan an invetigation to find out if there is a relationship between cell size & diffusion

(cells of agar made with sodium carbonate & containing phenopthalein (a ph indicator change colour when they are placed into a dilute acid. as the acid diffuses through the block, the ph changes & the pink colour of the indicator dissapears
your planning must be based on the assumption that you are provided with the following:
*blocks of agar
*a ph indicator (may be cut to size)
*supply of 2M hydrochloric
*your scools labs resouces


any help appreciated!!!
0
X
new posts

All the exam results help you need

1,812

people online now

225,530

students helped last year
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

How are you feeling about GCSE Results Day?

Hopeful (204)
12.73%
Excited (139)
8.68%
Worried (291)
18.16%
Terrified (363)
22.66%
Meh (144)
8.99%
Confused (35)
2.18%
Putting on a brave face (221)
13.8%
Impatient (205)
12.8%

Watched Threads

View All