Based on the results of your investigation, what conclusions can you draw about the relationship between a muscle's workload and its threshold of stimulation?

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Lab 4 Assignment: Topic: Muscle Stimulation

Text Book: Integrated Science 6th edition by Tillery, Enger and Ross

Methods of Scientific Investigation

(YOU ALREADY HAVE A COPY OF THE TEXT THAT I SENT TO YOU).

  1. Based on the results of your investigation, what conclusions can you draw about the relationship between a muscle's workload and its threshold of stimulation?
  2. Why would a muscle's threshold of stimulation change as its workload changes?
  3. Which muscles were able to contract under the greatest loads? What does this suggest about the role these muscles play in frog movement?
  4. An experiment to determine which leg muscles of a frog are important for jumping long distances

INSTRUCTIONS:

When you open the link for the virtual lab below – read the instructions on the left side of the virtual lab, and follow the procedure to complete the virtual lab, read the material found in Information section - there then click on the journal icon and answer the four (4) journal questions, and complete the data table as well.  Complete the lab by following the method outlined below under criteria.

 

Watch the virtual lab at this link below and follow the instructions

 

Lab # 4: Muscle Stimulation

http://www.mhhe.com/biosci/genbio/virtual_labs_2K8/labs/BL_13/index.html

Then answer the four (4) journal questions in the form of a report following the format outlined below under criteria:

Criteria:

1.    Introduction 

o    background information for the lab

o    objective of the lab

o    relation to the class materials

 

2.    Methods 

o    Relevant materials and methods used

o    Steps used to carry out the lab

o    Measurements taken

 

3.    Results 

o    Record of all the results obtained

o    Tables, graphs, pictures, drawings

o    Other observations relevant to the lab exercise

 

4.    Interpretation and discussion 

o    Explanation of all results in relation to the objective of the lab

o    Interpretation of the data lab according to the data collected or observations make or taken during the lab.

 

5.    Conclusion 

o    Summary of your findings and the interpretations of the data in relation to the objectives or aim of the lab and relationship to the class topic, etc.

o    Recommendations, if any. (In your conclusion, states what the Virtual Lab meant to you, what you learnt or if there are other elements that you learnt and will use going forward).

  6.   References  

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