AP-1_Overview_of_the_Skeletal_System_RPT

AP-1_Overview_of_the_Skeletal_System_RPT - Lab Report...

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Lab Report Assistant: This document is not meant to be a substitute for a formal laboratory report. It is simply a summary of the experiment’s questions and data tables which should be addressed in a formal lab report. The intent is to facilitate student’s writing of lab reports by providing this information in an .rtf format which can be copied and pasted into an electronic document. Overview of the Skeletal System Purpose: What is the purpose of this exercise? The purpose of this exercise is to learn about the skeletal system and its components, and also learn how the structure of bone tissue contributes to the function of the skeletal system. Are there any safety concerns associated with this exercise? If so, list what they are and what precautions should be taken. The safety concerns associated with this exercise involve the use of the sharp slides. Accidents can be avoided by keeping the slides away from children and on a flat, stable surface. Exercise 1: The Chemical Components of Bone A. Describe the effect that the lemon juice (acid) had on the chicken leg bone. The bone soaked in vinegar (acid) was very soft and bendable. Vinegar is considered a mild acid, but it is strong enough to dissolve away the calcium in the bone. Once the calcium is dissolved, there is nothing to keep the bone hard - all that is left is the soft bone tissue. B. Describe the effect that baking (heat) had on the chicken leg bone. The chicken bone that was heated it lost collagen and became very inflexible. It snapped in half easier because it does not have to collagen to help it bounce back into place . C. Rickets is a disease where the bones are not formed completely in children due to a lack of vitamin D. Does the heated or the acid soaked bone represent a child with rickets? Explain why. The bone soaked in vinegar represents a child with rickets. As the malic acid of the vinegar dissolves the vinegar away the bone becomes soft and rubbery. The chicken soaked in vinegar is comparable to the way the soft bones affected with rickets bend under the body’s weight.
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Lab Report Assistant: This document is not meant to be a substitute for a formal laboratory report. It is simply a summary of the experiment’s questions and data tables which should be addressed in a formal lab report. The intent is to facilitate student’s writing of lab reports by providing this information in an .rtf format which can be copied
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AP-1_Overview_of_the_Skeletal_System_RPT - Lab Report...

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