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Yeast Lab

Yeast Lab

Laboratory Investigation

I.	Identify the Problem or Purpose of the Lab:  What substance will help yeast 		reproduce the most?

II.	Background Information:  Yeast are eukaryotic microorganisms.  Their 		saccharomyces are very helpful in today’s biology studies.  Yet, the ease of 		genetic multiplication of yeast allows its use functionally dissecting gene 		products from other eukaryotes.

http://www.swan.ac.uk/chemeng/stevep/stevep1.htm

III.	State the Hypothesis or Expectations:  If I put a 50/50 mix of sugar and water 	solution with the yeast then it will grow most rapid.

IV. 	Explain how you are going to Test the Hypothesis or Expectations:
	Materials:
	7up soda pop
	5 grams of sugar
	15 ml. of water
	stirring rod
	yeast packet
	3 test tubes
	test tube rack
	balloons
	
	Procedure:
	1.Mix 3 grams of sugar with 3 ml. of water and put it in the 1st test tube
	2.Dump 5 ml. of 7up in the 2nd test tube
	3.Dump 5 ml. of water in the 3rd test tube as a control
	4.Put 2 grams of yeast in each test tube
	5.Put a balloon over the top of each tube
	6.Check your results in 2 days
	7.Collect and record your data
	8.Clean up your project and put the supplies away

V.  Data Collection:  (this may be in the form of graphs, charts, diagrams,

yeast, water, test, balloon, tube, sugar, put, ml, gas, results, hypothesis, grams, each, yes, tubes, rise, react, off, mix, make, expectations, diameter, data, cm, 7up, yet, way, vi, vertical, top, thought, things, tests, supported

Word Count: 375

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