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

Feels great to be doing our part in helping the @NHSuk by donating reusable safety goggles, masks and gloves to Ips… https://t.co/OV6pqV3rlN 2020-03-30 11:07:58

@FramCollege 30 Mar

It's Friday, but Sunday's coming! A quick Chapel Talk from Rev B. this morning as we enter uncertain times. https://t.co/EsBPic2cvc 2020-03-23 11:33:59

@FramCollege 23 Mar

A surreal teaching experience! So proud of our amazing teaching staff and pupils for the way they are embracing thi… https://t.co/eBg9vKh7Sr 2020-03-23 10:09:06

@FramPrep 23 Mar

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