Observations: data recorded from homeostasis exercise:
Here are the procedures in order to complete homeostasis exercise
1. Before beginning set up a data table
2.Decide with a friend who will be the subject and who will be the timer.
3.perform this exercise at a time when the subject has not exercised for at least an hour.
4.take and record the subject’s body temperature with an oral or ear thermometer.
5.use a watch with a second hand to count the subject’s heartbeats per minute. The timer should tell the subject to begin counting his/her heartbeats at time=0, and to stop counting at time= one minute. Record the subject’s heat beats per minute.
6.Also use the watch to record subject’s rate of respiration for one minute.The timer should tell the subject exactly when to begin and stop counting his/her breaths. Record the subject’s number o inhaled breaths.
7.now time the subject for ten minutes or exercise. Any moderately strenous exercise comfortable to the subject is acceptable.
8. at the end of ten minutes repeat the measurement to determien the subject’s body temperature,heart rate per minute, and rate of respiration.
9. observe any changes in the subject’s appearance and condition from before to after the exercise period. Record your observations.
10. continue to monitor the subject’s vital readings every 5 minutes or until they have returned to the pre exercise level but no longer than 30 minutes.
11. use different colored pens or pencils to graph your results on a sheet of paper or use a computer spreadsheet using measurement against time.
Before exercise:
TO=0 minutes
after exercise
T1=10 minutes
T2=15 minutes
T3=20 minutes
T4=25 minutes
T5=30 minutes
Body temperature degree celciuc and degree fahrenheit
Heart beats per minute:
Rate of respiration inhalations per minute:
Other observations:
Results: A. describe what changes you observed in the subject between the pre exercise and the post exercise states:
B. how long did it take for the subject’s measurement’s to return to the pre exercise states?
C. are these changes that you expected to happen?
D. If results are available from someone else’s trial or you are able to repeat the exercise with a different subject compare those results with yours what differences do you find ?How might you explain these differences?
A. Describe what system’s in the subject’s body actively participated in homeostasis changes to allow it to perform this exercise.
B. Exactly what kinds of activity did each system undertake to compensate for the subject’s exercise and enable him /her to perform it?
C.Why would you believe the subject’s body made these adjustments?
D.What did you learn from this exercise?
A. what observations did you make about your skin when viewed under the hand lens? were you able to locate the slough layer of cells ? what is the purpose of this layer?
B. why can you consider skin to be like hide on another animal?
when you viewed microscope slides what similarities did you observe between the prepared slide and the wet mount slide?
D. how were the two slides different?
E. where int he body will you find each type of epithelia cell that you observed on the prepared slide?
F. why are mouth lining scrapings used for DNA analysis in forensic testing?
G. how does your epidermal layer differ from that of other animals such as dogs and cats? How is it the same?
A. what is the purpose of nerve cells?
B. How does their function differ from that of the endocrine system?
C. what type of nerve cell is represented in the prepared slide smear? motor,sensory, or interneuron? hwo do you know?
D. where would you expect to find most nerve tissue in your body? Why?
E. where might you find the least amount of nerve tissue?Why?
A.describe the characteristics o each type of muscle how are they the same? how are they different? Why are they different?
B. does the wet mount of the beef bone muscle tissue appear similar to any of the prepared slide muscles? Which one? why is it similar to this type of muscle? what is its function?
A. what type of muscle is represented by
A. beef roast
B.beef heart
C.beef tongue
D.Tripe
E.chicken drumstick
F fish fillet
B. why do muscle tissue types vary in cell makeup?
A. where would you find a beef “knucklebone” in a cows body? what structure is analogous in a human body?
B. what are the roles of the various structures found in bone?
C. how does the prepared slide fo bone differ from the photo of the osteoporitic bone?
A. why is bone health so critical?
B. what factors govern bone health?
C. what advice would you give a senior person to help him her maintain helath of their bones?
A. in the diagram which body systems are absolutely essential for a human to live?
B are there any systems we can lack and still survive without their operation?
C. are there any systems that humans have that are not portrayed in the diagram? what are there functions? are they necessary for life?
D. which system’s could be considered to be the body’s communication system?
E. which system’s could be the body’s transportation system?
A. how does the body thermoregulate? what specific biochemical mechanisms are involved?
B. what specific waste products are produced by the body and how are they removed?
C. how do habits such as smoking and heavy drinking affect the body? why are the effects reversible if the habit stops?
D. choose one system to investigate (http://www.nlm.nih/medlineplus/healthtopics.html
Explore one disorder of this system that can occur. Outline its symptoms,its affect, and what is currently known about the treatment. How does this disorder impact homeostasis in the victim?
E. what have you learned from doing this laboratory that you did not know before you began it?
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