Temperature Tolerance Lab

Question 1

Abiotic Factors

Answer 1

Nonliving or physical components of an environment

Question 2

Biotic Factors

Answer 2

Living components of an environment

Question 3

Range of Tolerance

Answer 3

The environmental conditions that a species can tolerate

Question 4

Scientific Method

Answer 4

A disciplined way of asking questions; self-correcting process of scientific information

Question 5

Steps of Scientific Method

Answer 5

1) Identify question
2) Form testable hypothesis
3) Develop a test of the hypothesis
4) Collect data
5) Interpret results (refine and revise original hypothesis)
6) Report for peer review

Question 6

Biology of Bakers Yeast

Answer 6

Eukaryotic organism that has a nucleus, mitochondria, and other internal structures not found in bacteria; small size, short generation time, and common availability

Easily cultured, under favorable conditions the population size can double every two hours or so.

Requires a lot of cellular respiration

Question 7

How Does a Respirometer Work?

Answer 7

Measures cellular respiration

Fill one tube with bakers yeast and glucose solution and invert it with a larger tube, measure cellular respiration by the size of the bubble

Question 8

What is cellular respiration? What are the waste products?

Answer 8

Cellular metabolic process by which cells synthesize ATP (energy molecules).

Waste products are CO2 and water

Question 9

What do we use bakers yeast in?

Answer 9

Baked goods and beer