Serendip is an independent site partnering with faculty at multiple colleges and universities around the world. Happy exploring!

Home › Alcoholic Fermentation in Yeast – A Bioengineering Design Challenge ›

Reply to comment

Jason Crewe's picture

Yeast & Celluar Resp.

Submitted by Jason Crewe (guest) on Mon, 11/09/2009 - 11:40pm.

Just a comment about the yeast used. I used baker's yeast which claims to be Saccharomyces cerevisiae.

This yeast did nothing after 10 minutes, 20 minutes, after 30 min there was some action. This is not useful for a 90 minute period as there is no visible buildup of CO2 and 'measure the bubbles' means nothing if there aren't any, or they are not in the same area (after overnight they were distributed throughout the tube).

Just wondering what I did wrong? I used water heated to 38degC and the 0%,1%,5%,10% solutions. However nothing happened....is there something wrong with my yeast? Does it go off? Should I not be using baker's yeast?

As an addendum, I wanted to view the comments for this activity to see if someone had already answered this question but only this form came up, no prior comments area. Maybe it would be easier if I could just see the comments and then I might be able to work this out without posting!

Thanks for the lab, I think it's good but I couldn't get it working.....any advice?
Jason

Reply

The content of this field is kept private and will not be shown publicly.
To prevent automated spam submissions leave this field empty.
3 + 7 =
Solve this simple math problem and enter the result. E.g. for 1+3, enter 4.

Remote Ready Biology Learning Activities

Scanning electron microscope image of SARS-CoV-2

Remote Ready Biology Learning Activities has 50 remote-ready activities, which work for either your classroom or remote teaching.

Narrative is determined not by a desire to narrate but by a desire to exchange. (Roland Barthes, S/Z)

What's New? Subscribe to Serendip Studio