PBS Classroom Activities
2.1.1 Diagnosing Diabetes
Comparing type 1 and 2 Diabetes- The artifact shows the difference between each type by showing how they respond in an Insulin Tolerance Test and a vend diagram of their differences. I didn't know that type 1 DNA was due to family history and type 2 was due to poor diet. Also I didn't know that there was a different test to show how a person's body will respond to sugary food and show if insulin is produced by the body or now. The lab had good graphs of a insulin tolerance test and a good vend diagram, but the vend diagram could have had better information in each category that was correct to the right type of diabetes.
Comparing type 1 and 2 Diabetes- The artifact shows the difference between each type by showing how they respond in an Insulin Tolerance Test and a vend diagram of their differences. I didn't know that type 1 DNA was due to family history and type 2 was due to poor diet. Also I didn't know that there was a different test to show how a person's body will respond to sugary food and show if insulin is produced by the body or now. The lab had good graphs of a insulin tolerance test and a good vend diagram, but the vend diagram could have had better information in each category that was correct to the right type of diabetes.
Glucose Model 2.1.2
Role of insulin- The model is an example of how the insulin works on a cell to allow glucose to enter the cell in a healthy person. During this project I learned that insulin needs to take a specific shape to allow for it to attach to the insulin receptor site. If the shape is not correct then it will be rejected and not allow for phosphorylation and glucose to enter the cell. This was on thing that I learned over this semester that I was not aware of at the beginning of the year. The artifact was a good representation of how the cell works to allow for insulin transfer, but could have better detailed so people could understand the different roles played in the cell.
Role of insulin- The model is an example of how the insulin works on a cell to allow glucose to enter the cell in a healthy person. During this project I learned that insulin needs to take a specific shape to allow for it to attach to the insulin receptor site. If the shape is not correct then it will be rejected and not allow for phosphorylation and glucose to enter the cell. This was on thing that I learned over this semester that I was not aware of at the beginning of the year. The artifact was a good representation of how the cell works to allow for insulin transfer, but could have better detailed so people could understand the different roles played in the cell.
1.2.3 DNA Analysis
How restriction enzymes work- The restriction enzyme is a molecular scissors that cut DNA in specific locations. This lab demonstrates the different restriction enzymes that the forensic scientist use to form a DNA profile of a person. At the beginning of the year I thought DNA was only recognizable by certain people; I was not aware that they would use restriction enzymes to cause a certain strand of the DNA to be cut. Now I understand that certain enzymes cause the DNA to cut at certain base pairs for example, Haelll cuts at GGCC. My artifact could have had a better image of how the enzyme actually works but it does show how the different lengths of the strands can cause a gel electrophoresis to differ from each person.
How restriction enzymes work- The restriction enzyme is a molecular scissors that cut DNA in specific locations. This lab demonstrates the different restriction enzymes that the forensic scientist use to form a DNA profile of a person. At the beginning of the year I thought DNA was only recognizable by certain people; I was not aware that they would use restriction enzymes to cause a certain strand of the DNA to be cut. Now I understand that certain enzymes cause the DNA to cut at certain base pairs for example, Haelll cuts at GGCC. My artifact could have had a better image of how the enzyme actually works but it does show how the different lengths of the strands can cause a gel electrophoresis to differ from each person.
1.1.6 Blood Spatter Analysis
Controlled Experiment- This artifact shows how a independent variable and dependent variable are used to find the right size of a blood spatter. A control group is presented in the experiment to allow for the experiments to be tested against the control and allow for good data to be collected. I have allows been knowledgeable of a good experiment needing different variables, but I didn't know that a control group need to be present to test against. This experiment was a good representation of how an independent and dependent variable work directly. The graph was skewed with some results so that would be one fix that could be improved.
Controlled Experiment- This artifact shows how a independent variable and dependent variable are used to find the right size of a blood spatter. A control group is presented in the experiment to allow for the experiments to be tested against the control and allow for good data to be collected. I have allows been knowledgeable of a good experiment needing different variables, but I didn't know that a control group need to be present to test against. This experiment was a good representation of how an independent and dependent variable work directly. The graph was skewed with some results so that would be one fix that could be improved.
2.1.3 Feedback
Diagram of feedback response- The artifact shows the relationship of the feedback cycle that blood glucose goes through to go back to homeostasis if there is a change in the levels. I was always aware that there was a negative feedback response in the body that would stop a disturbance in the body to allow it to go back to the regular level, like body heat. I was not aware of how blood sugar levels would return to normal if they would go low or high. After this lab I now know that the production of insulin which changes the glucose into glycogen. This causes high levels of blood sugar to lower back to normal.
Diagram of feedback response- The artifact shows the relationship of the feedback cycle that blood glucose goes through to go back to homeostasis if there is a change in the levels. I was always aware that there was a negative feedback response in the body that would stop a disturbance in the body to allow it to go back to the regular level, like body heat. I was not aware of how blood sugar levels would return to normal if they would go low or high. After this lab I now know that the production of insulin which changes the glucose into glycogen. This causes high levels of blood sugar to lower back to normal.