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'Investigating how isotonic, hypertonic and hypotonic solutions affects the total mass of a potato chip".

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  • Essay length: 3918 words
  • Submitted: 13/01/2004
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GCSE Life Processes & Cells

The first 200 words of this essay...

OSMOSIS IN POTATO CHIPS

'Investigating how isotonic, hypertonic and hypotonic solutions affects the total mass of a potato chip"

Aim:

To find out how changing the concentration of salt solution affects the total mass of potato chips, placed in it. So we are investigating the movement of Osmosis through a selectively permeable membrane, in this case potato.

Introduction:

I am carrying out an investigation regarding Osmosis in potato chips. In order to conduct my investigation I will need to fully understand all the background information I know. Using secondary sources such as textbooks, CD Roms, library, class notes and the Internet.

Key words:

Isotonic: The solutions being compared have equal concentrations of solutes. E.g. 20ml water + 20ml salt sol.

Hypertonic: The solution with the higher concentration of solutes.

Hypotonic: The solution with the lower concentration of solutes.

Osmotic pressure: Diffusion of water across a membrane - osmosis generates a pressure called Osmotic pressure.

Osmolarity: Used to describe the number of solute particles in a volume of fluid.

Plants in general

Plants need water to grow. Plants use water to aid them

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