Is it Alive?

We are looking at the very broadest way to classify life.  The first branch of our world's dichotomous key if you will.

We have developed a pretty good list of what defines a living thing.   We can easily see that things like dogs are alive.  

Denison looking very much alive

BUT. What about things like yeast? Is yeast alive?

What is Yeast? Scan over the Wikipedia page about yeast.  Take a few brief notes.

Ok so yeast is alive: but why?  You need to do a bit of research and some experimentation to work this out:

Apply the MRS. C. GREN process to find out why Scientists thing yeast is alive.

Look at each of the links below to  find evidence as to why we think yeast is alive. Take a few notes in your book as evidence.

Movement    - Yeast's Movement is passive & Yeast's Sense of 'Self' 

Respiration   - Time to experiment! See Mrs. McW.

Cells & DNA - BBC Bitesize Yeast   & Yeast x1000

Growth - Yeast Growth Time-Lapse

Reproduction -  BBC Bitesize Yeast 

Excretion - Your experiment should also answer this question! 

Nutrition - Your experiment should also answer this question!