Answer these questions in the introduction of your Lab Report:

1. What is starch?

2. What are chemical indicators and what are they used for?

3. Which indicator is used to test for starch?

4. How can you use it to test for starch?

5. What was the purpose of your experiment?

6. Answer these questions in the discussion and conclusion of your Lab Report:

7. Which food samples contained starch and what evidence supports your claim?

8. What did you use for controls in your experiment?

9. What are some sources of error in your experiment?

10. How could you modify this experiment?

Aseptic Technique and Bacterial Anatomy and Morphology Labreport.

The first experiment Aseptic Technique.

The second experiment is Bacterial Anatomy and Morphology Labreport

In this experiment, you will view the Gram Stain results for twodifferent samples. The purpose of this experiment is for you togain an understanding of how the morphology and arrangement ofbacteria relate to staining techniques.

Introduction?

Purpose Findings?

Procedure?

Observations and Results?

Discussion?

Conclusion?

Identify the research question addressed as a whole and the experimental approaches used.

Describe each figure including how previous knowledge led to the question that prompted each experiment, how the question was addressed through experiments, and the results and conclusions of each experiment.

Explain each experiment and identify the controls.

Discuss other approaches to answer the same question.

Evaluate the validity of the author’s conclusions.

A Bacterium That Can Grow by Using Arsenic Instead of Phosphorus

Felisa Wolfe-Simon, et al. Science 332, 1163 (2011); http://science.sciencemag.org/content/332/6034/1163

DESIGNING YOUR OWN NUTRITION EXPERIMENT Just like other scientific disciplines, factual nutrition information is based on experimental research that has been replicated many times by different scientists. Below, you will construct a realistic intervention study, using human volunteers, to answer a nutrition related question of your choice. Be sure to include as much detail as possible.

1. Your Question to be tested:

2. State your hypothesis concerning your above listed question

3. In testing your hypothesis, who will you recruit for your experiment? (Include things like age, gender, health status and the total number of subjects)

4. Briefly explain your experimental protocol. (Give as much detail about what you will do with your experimental subjects)

5. What variables will you test for? (What things are you going to measure?)

6. How do you plan to limit the subject bias? (How will you prevent your volunteers from reporting effects simply because they know they are participating in your experiment?)

7. What limitations do you foresee in carrying out this experiment?