pages within this section

Cells Alive! Year 12 Biologists observe osmosis, plasmolysis and turgor in Red Onion Epidermis!

Wednesday 14 Nov 2018
- fc biology quadflieg 1 nov18 - Cells Alive! Year 12 Biologists observe osmosis, plasmolysis and turgor in Red Onion Epidermis!

By: Ruth Noble, Teacher of Biology |


On Tuesday 13th November, Year 12 biologists observed the process of osmosis in a plant cell. They used red onion so they could see the cell contents as they are a beautiful pink colour. The students subjected these cells to two different conditions;

  1. They added sodium chloride solution and then they removed the sodium chloride and added
  2. Distilled water.

The purpose of this was to observe plasmolysis when sodium chloride was added and turgor when distilled water is present. I think you will agree the students produced some lovely specimens and were able to observe this crucial process of osmosis.

The pictures below are from three students; Laetitia Altenburg, Nici Quadflieg and Gaby Antoci.

Laetitia Altenburg

Below: Red Onion Epidermis – magnification x400 – with sodium chloride solution.

- fc biology altenburg 1 nov18 - Cells Alive! Year 12 Biologists observe osmosis, plasmolysis and turgor in Red Onion Epidermis!

Below: Red Onion Epidermis – magnification x100 – with sodium chloride solution.

- fc biology altenburg 2 nov18 - Cells Alive! Year 12 Biologists observe osmosis, plasmolysis and turgor in Red Onion Epidermis!


Gabi Antoci

Below: Red onion epidermal cells in NaCl solution – magnification x400

- fc biology antoci 1 nov18 - Cells Alive! Year 12 Biologists observe osmosis, plasmolysis and turgor in Red Onion Epidermis!


Nici Quadflieg

Below: Red onion epidermal cells – magnification x100

- fc biology quadflieg 1 nov18 - Cells Alive! Year 12 Biologists observe osmosis, plasmolysis and turgor in Red Onion Epidermis!

Below: Red onion epidermal cells – magnification x100

- fc biology quadflieg 2 nov18 - Cells Alive! Year 12 Biologists observe osmosis, plasmolysis and turgor in Red Onion Epidermis!

Below: Red onion epidermal – magnification x400

- fc biology quadflieg 3 nov18 - Cells Alive! Year 12 Biologists observe osmosis, plasmolysis and turgor in Red Onion Epidermis!

LATEST TWEETS

I added a video to a @YouTube playlist https://t.co/oroaTruos2 England Cricketer Alex Hales teaches masterclass | Independent School 2018-12-10 14:39:09

@FramCollege 10 Dec

Our pupils recently enjoyed a cricket masterclass with Alex Hales @AlexHales1 Here's a short video we made... https://t.co/oroaTrLZQC 2018-12-10 14:36:58

@FramCollege 10 Dec

We are thrilled with our "Highly Commended" rosette in the "Green Award for Outstanding Environmental Achievement"… https://t.co/y8GkxKnmwf 2018-12-12 12:56:05

@FramPrep 12 Dec

Cart Item Removed. Undo
  • No products in the cart.