Respiration

toc

=Respiration notes=

=Cellular respiration podcast=

Add notes to your annotations using the cellular respiration podcast. (not playing correctly? Access from the hand out folder on the server.)

PDF of powerpoint slides:

=Respiration activity=

Use the following resources and answer the accompanying Glucose metabolism questions in this document.

[|http://www.siue.edu/~ctheodo/index_files/04_A01_01i.swf] [] [] []

=Yeast Respiration lab= All organisms need to carry out the process of respiration to obtain energy to complete their life processes and activities. Various factors also affect how efficient an organism is at carrying out respiration. In this investigation, you will try to determine how yeast carries out respiration. How can we investigate the various factors that affect cell respiration in yeast? Discuss as small groups that factors that could effect respiration in yeast. As a class discuss how you will test for these factors. What is the dependent variable? What is the independent variable?

Part I Making bread (each person does this): Mix 3 Tbs. flour with 2 Tbs. of warm water, 20 ml of sugar solution (1.5 cm from the top), and 1 g. of yeast. Mix the contents on a paper plate and knead in extra flour to remove stickiness. Form into a ball and place in a muffin tin (make sure your name is on the bottom - of the tin, of course.) Cover with a warm towel. Let rise for an hour and then we will bake at 360 until brown. **Be sure to take pictures.**

Part II Measuring yeast activity (make one set up for your group): Use the same sugar solution you used in making the bread. Add 20 ml of sugar solution and 1 g. yeast to a test tube. Shake the tube until the yeast is dissolved. Place a balloon over the top of the tube. Make an observation after 10 minutes and again after 20 minutes. Note the depth of the bubbles created as well as the expansion of the balloon. **Be sure to take pictures.**

Calculations: Calculate the volume of gas in each balloon using the following formulas(C=circumference:C = 2πr ): Radius: r = C/2π Volume : V = 4/3 2πr3 (r3 is radius cubed)

Graphing: Think about how you want to graph the data. You will need to include all of the class data in the graph(s). Use an online graphing program such as: [] or google docs or excel.

Analysis: 1. State 2 clear, concise conclusions derived from the analysis of the results from the experiments in your class. 2. What was the dependent and independent variables in the experiment? Explain. 3. According to the experimental data, what kind of environment do yeast prefer? How did the sugar concentration change the result? Explain. 4. How did the amount of rising change with the different types of sugar solutions used? 5. What kind of respiration did the yeast carry out in the experiment? Explain.

=Respiration venn diagram=

Construct a Venn Diagram to identify the terms used to describe anaerobic and aerobic respiration. Use the following terms:
 * oxygen
 * carbon dioxide
 * water
 * glucose
 * PGAL
 * pyruvic acid
 * lactic acid
 * ethyl alcohol
 * yeast
 * bacteria
 * animals
 * NADH
 * enzymes
 * ATP
 * ADP
 * mitochondria
 * cytoplasm
 * Kreb's Cycle
 * chemical oxidation
 * electron transport
 * high energy hydrogen
 * FADH2

=Exercise and cell respiration=

[]

[]

Use the below links to answer the following questions on this document: [|Exercise and cell respiration.doc]

[]

[]

Effects of exercise on the body:

http://www.bbc.co.uk/schools/gcsebitesize/pe/exercise/2_exercise_effectsoftraining_rev1.shtml

[]

[|http://www.chemistry.wustl.edu/~courses/genchem/Tutorials/Buffers/excercise.htm]

[|http://www.unm.edu/~lkravitz/Article%20folder/mysteries.html]


 * []


 * []

[]

[]

[]

Poisons:

[]

=Cellular Respiration Review=