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Published byJasmine Erickson Modified over 10 years ago
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If protein synthesis were attempted experimentally under in vitro conditions (in a test tube) using ribosomes from bacteria, tRNAs from frog eggs, mRNA from rat muscle cells, and amino acids from fruit flies, what products would result? A. A mixture of proteins from bacteria, frog eggs, rat muscle, and fruit flies in a random proportion. B. bacterial proteins only C. frog egg proteins only D. rat muscle proteins only E. fruit fly proteins only F. none; no protein synthesis would occur `
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Provide Answers Professor’s Job: Remember Answers Student’s Job:
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Biology 360 Cell Biology Large enrollment Required for majors
Reduced coverage Analytical emphasis
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Less is More Content Thinking Skills Content
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Data Analysis Problem A cell line commonly used for studies of adenylyl cyclase is the S49 lymphoma cell. Genetic variants of the cell exist with mutations of certain components of the system. The wild type form of the cell has receptors for the hormones epinephrine and somatostatin. The following graphs illustrate measurements made with membranes from a sample of a certain variant of S49 lymphoma cells. The data in the left graph represent wild type cells incubated with only GTP (“con”), epinephrine and GTP (“epi”) or with one hour prior treatment with cholera toxin, GTP and NAD+ (“CT”). At time zero on the graph, radioactive ATP was added to start the assay. The center graph is a repeat of the same experiment with the variant cell. The third graph displays the binding of radioactive epinephrine to wild type (solid squares) and variant cells (triangles). Based on these data what mutation(s) is/are possible in the variant cells?
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Multiple Choice Version
Data Analysis Problem A cell line commonly used for studies of adenylyl cyclase is the S49 lymphoma cell. Genetic variants of the cell exist with mutations of certain components of the system. The wild type form of the cell has receptors for the hormones epinephrine and somatostatin. The following graphs illustrate measurements made with membranes from a sample of a certain variant of S49 lymphoma cells. The data in the left graph represent wild type cells incubated with only GTP (“con”), epinephrine and GTP (“epi”) or with one hour prior treatment with cholera toxin, GTP and NAD+ (“CT”). At time zero on the graph, radioactive ATP was added to start the assay. The center graph is a repeat of the same experiment with the variant cell. The third graph displays the binding of radioactive epinephrine to wild type (solid squares) and variant cells (triangles). Based on these data what mutation(s) is/are possible in the variant cells? Multiple Choice Version a. a mutated β-adrenergic receptor that cannot communicate with Gs b. no β -adrenergic receptor c. a β -adrenergic receptor with reduced affinity for epinephrine d a mutated Gs that does not communicate with the receptor e. a mutated Gs that does not communicate with adenylate cyclase f. a mutated Gs that does not hydrolyze GTP g. a mutated Gs that does not bind GTP h. no Gs i. a mutated Gi that does not hydrolyze GTP j. no Gi
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Data Analysis Problem Constructed Response
A cell line commonly used for studies of adenylyl cyclase is the S49 lymphoma cell. Genetic variants of the cell exist with mutations of certain components of the system. The wild type form of the cell has receptors for the hormones epinephrine and somatostatin. The following graphs illustrate measurements made with membranes from a sample of a certain variant of S49 lymphoma cells. The data in the left graph represent wild type cells incubated with only GTP (“con”), epinephrine and GTP (“epi”) or with one hour prior treatment with cholera toxin, GTP and NAD+ (“CT”). At time zero on the graph, radioactive ATP was added to start the assay. The center graph is a repeat of the same experiment with the variant cell. The third graph displays the binding of radioactive epinephrine to wild type (solid squares) and variant cells (triangles). Based on these data what mutation(s) is/are possible in the variant cells? Constructed Response State in one sentence each of the conclusions justified by the data.
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Performance Data Pre and Post Test Pretest Posttest Problem
Mean Raw Score % Promoter 2.1±1.9 (17.5) 7.3±3.1 (60.8) Secretion 3.5±2.1 (43.8) 6.0±1.8 (75.0) Chromatin 1.2±0.1 (24.0) 3.1±1.6 (62.0) Total 6.8±3.6 (27.2) 16.3±5.2 (65.2)
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Performance Data Chromatin Problem
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Self Efficacy: Table Problem Pretest Posttest Mean Difference
1. Scatterplot 6.4 ±1.45 7.7 ± 1.30 1.3* 2. Electropherogram 5.4 ± 1.48 7.2 ± 1.38 1.8* 3. Text Fig. 1 4.3 ± 1.55 7.0 ± 1.45 2.7* 4. Table 1 5.1 ± 1.48 6.8 ± 1.41 1.7* 5. Text Excerpt 6.3 ± 1.52 7.7 ± 1.41 1.4* 6. Article 1 7.4 ± 1.34 2.0* 7. Article 2 6.3 ± 1.41 7.5 ± 1.30 1.2* 8. Histogram 6.2 ± 1.41 0.8 9. Text Fig. 2 6.1 ± 1.61 8.9 ± 1.18 2.8* 10. Table 2 5.8 ± 1.48 7.1 ± 1.30 Average 5.7 ± 1.49 7.4 ± 1.35
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Self Efficacy: Research Data
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Self Efficacy: Text Figure
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Self Efficacy: Published Paper
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Attitudes Survey Complete List
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Attitudes Survey Results
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Academic Perspective:
YES! Academic Perspective:
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Personal Perspective:
Probably Not! Personal Perspective:
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Student Mobility Profile (SMP)
A measure of learning how to learn First Exam Last Exam
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Student Mobility Profile
Z score = Individual Raw Score – Class Mean = number of S.D. from mean Standard Deviation Calculate Z-scores from Exam 1 and Exam 2 Z2 – Z1= ΔZ
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Student Mobility Profile
% of class >1 >2 >3 <-1 <-2 <-3 decline ΔZ improve Graph as the percentage of the class that has an increment (or decrement) of Z-score ≥ various values along the x-axis
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Student Mobility Profile
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Read and Highlight the Text
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Take Notes in Class
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Cram for the Exam
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Average amount they improved Average amount they declined
Case of Symmetry Routine Learning Behaviors Average amount they improved equals Average amount they declined
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Case of Asymmetry Learned How to Learn Better
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Course Objectives Content—Foundational facts, concepts, theories
Skill—Think like practitioners in the field Epistemology—Improved scholastic behavior
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“I” Professor “Them” Students
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What Can a Student Do? Read Hear See Talk Draw Write Teach
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Active Learning Draw Read Hear See Talk Draw Write Teach
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Read Hear See Talk Draw Write Teach Active Learning Write
Arrange these words (or a form of them) in a logical sequence. Add words as needed. Create a meaningful sentence that captures the essence of transcriptional regulation in a eukaryotic cell. transcription initiate RNA polymerase enhancer transactivator recruit basic complex promoter Read Hear See Talk Draw Write Teach Control of the initiation of transcription in eukaryotes is achieved when a transactivator binds to an enhancer element in DNA, which helps to recruit the basic complex (including RNA polymerase) to a promoter.
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Active Learning Reconstruct What is the correct signaling sequence?
Random Order Complete Signaling Sequence
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Active Classroom
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“Clone Myself as a Teacher”
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EQ Session How does the receptor activate Gs?
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EQ Session Why does the activity go down?
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What’s the result of phosphorylating that tyrosine?
EQ Session
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In-Class Formative Assessment
Simulate test conditions Critique good and poor responses Feedback Identify misconceptions Formulate future action plans
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“Classroom As Laboratory”
Poster # B556, Today 1:30 – 3:00 Jen Nelson, Student Mobility Profile We would like to perform the SMP analysis for anyone who is interested. This can be easily done using existing data from past courses. Supported by a grant from the U.S. Department of Education (P116B041238), Fund for the Improvement of Post-Secondary Education
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