Sharing Laboratory Ideas and Assessments ASBMB Student

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Sharing Laboratory Ideas and

Assessments

ASBMB Student Centered Education Conference July 2011

Ann Aguanno, Associate Professor of Biology

Marymount Manhattan College

Benjamin Caldwell, Professor of Chemistry

Missouri Western State University

Overview

• Introductions

• Two laboratory courses

• Student Lab Skills

– Breakout

• Specific Lab Activities

– Breakout

• Pre and Post-Assessment

– Breakout

• Open Discussion

A

Our Schools

Marymount Manhattan College, NYC

o Small (1700) liberal arts college, urban, diverse, academically average student population

Missouri Western State University o Medium-sized (6,000), open access admission, diverse, academically average student population

Your Schools?

• Small liberal arts schools?

• PUI?

• R1?

• HBCU?

• Community Colleges?

• Other?

• Biochem. vs. Mol Biology?

A

Two Laboratory Courses

Cellular and Molecular Biology (BIOL 240) o Sophomore level course o Required for all Biology majors o 10-12 students per lecture; 10-12 students per lab section

Biochemistry (CHE 370) o Junior/Senior Level course o Required for all Biology & Chemistry majors o 48 students per lecture; 16 students per lab section

Cellular & Molecular Biology

Lecture

Intro to Chemistry and Cells

Energy, Catalysis, Biosynthesis

Protein Structure and Function

DNA & Chromosomes

DNA Replication, Repair

DNA to Protein

Analyzing Genes

Control of Gene Expression

Cell Cycle and Cell Death

Tissues & Cancer

Laboratory

Lab Safety and the Lab Report

Separation of Proteins by Charge (protein structure; chromatography; micropipette use)

Separation of Protein by MW (SDS PAGE)

Nucleosome Structure (chromatin structure; DNA electrophoresis)

Karyotyping Human Cells (cytogenetics; Microscopy )

Advanced Microscopy/Cell Culture (sterile Technique; photomicroscopy )

Intro to Bioinformatics: DNA Sequencing (DNA sequencing methods; genomics)

Cloning, Transformation, Phenotype Assay (microbiology; transformation; cloning)

Cell Culture (con’t); Insect Cells

PCR-based DNA Profiling (PCR technology )

Grading: 3 Exams, Primary Literature Analysis, Lab Performance and Reports

Textbook: Essential Cell Biology Alberts, et. al, 3rd

Textbook: Reading the Primary Literature , by Gillen

Lab Manual: In-House

Lecture

Chapter

• Chemistry in Biological Systems 1

• Water 2

• Amino Acids, Peptides & Proteins 3

• Protein Structure 4

• Enzymes

Carbohydrates

6

7

• Nucleotides & Nucleic Acids 8

• Lipids & Membranes 10 & 11

• Principles of Bioenergetics 13

• Intro to Metabolism: Glycolysis,

Kreb’s Cycle, Oxidative

Phosphorylation 14, 16, 19

Biochemistry

Lab Schedule

• Check-in; Pre-Lab Assessment;

Pipette Calibration;

• CMC by Fluorescence (Solutions/Graphing)

• pH and Buffers

• Titration of Amino Acids (reinforce pKa’s)

• Protein Quantification (BCA/Bradford)

• Gel Filtration Chromatography

• Bioinformatics

• Mid-term Exam (data analysis/protocols)

• Protein Purification Project (Ion Ex. chrom )

• Protein Purification Project ( Affinity chrom.

)

• Protein Purification Project (SDS-PAGE)

• Protein Purification Project (Western Blot)

• Enzyme Kinetics (LDH)

• Final Exam

Grading: 3-4 Exams + Final, 5-6 quizzes, Questions of the Day,

Lab Performance and Reports (20%)

Textbook: Biochemistry, Garrett & Grisham, 4 th ed.

Lab Manual: In-House

4/17/2020 7

Skills of Incoming Students

• What are the Fundamental Skills? (5 essential)

• Skills Required for Your Laboratory Course

– Biochemistry vs. Molecular Biology Courses?

B

Review Group Responses

2:15

Expectations for Our Lab Courses

• Courses o MATH, MATH, MATH!!! (Level???) o General Biology (1-2 semesters?) o General Chemistry (2 semesters?) o Organic Chemistry (1-2 semester?; coreq ok) o Writing 1 and 2

Expectations for Our Lab Courses

• Basic Skills o Time management, writing, reading, collaboration o Safety, note taking, lab reports, data/graphical analysis, unit conversion, standards or references, basic statistics o Handling mass & volume, pipetting, minor instrumentation (e.g. pH, centrifugation, basic spectrophotometry) o Multiple ways to analyze, threshold, sensitivity, stringency

A

How Assess Incoming Skills?

• Fundamental Skills?

• Specific Skills Required for Your Course?

– Biochemistry vs. Molecular Biology Courses?

A

Review Group Responses

2:45

Learning Goals of Lab Courses

Cellular & Molecular Biology

o Communicate and apply fundamentals of cellular & molecular biology o Utilize scientific method, critical thinking skills and problem based-learning techniques o Perform laboratory- based scientific investigations by applying the concepts and techniques learned o Apply concepts and techniques learned to current scientific and medical topics o Present and critique experimental results o Analyze primary cellular and molecular biology literature

Learning Goals of Lab Courses

Biochemistry

o Demonstrate proficiency in basic biochemistry lab techniques o Identify connections between experimental design and data generated from procedures o Differentiate between control and experimental data o Perform mathematic transformations of raw data to useful and meaningful information o Generate data in multiple formats (graphs, charts, observations) o Develop conclusions based on objective and logical analysis, interpretation and evaluation of data and observations o Maintain a laboratory notebook using proper scientific verbage and notation in order to effectively communicate within the scientific community o The laboratory experience should also reinforce topics discussed in lecture

Other Learning Goals?

3:00

How To Assess Laboratory Learning Goals?

• 3 methods

How We Assess Laboratory Learning Goals

• Assess Lab Notebooks

• Assess Lab Reports

• Practica

• Exams

• Regular Observations of Lab Performance

• Oral vs. Written Communication

• Pre and Post Test

Example: MWSU Skills Survey

Use the following scale, circling the appropriate statement that best matches your feeling about the following laboratory related questions.

Strongly Somewhat

Disagree Disagree

1 2

Neutral/ Somewhat Strongly

No Opinion Agree Agree

3 4 5

1. I am able to solve basic mathematic problems that require scientific notation or exponents.

1 2 3 4 5

3. I can accurately determine the correct number of significant digits in a number.

1 2 3 4 5

79. Complete the following mathematical equation, and give your answer with the proper number of significant digits.

a. 4.0 x 10 5 b. 4.00 x 10 5 c. 4.00367 x 10 5 d. 400,367

545

0 .

.

1 x 21 .

3

029

Sample of pre-course survey at

(Spring 2010 results).

I understand & can Identify dependent variables

I understand the differences between accuracy & precision

I understand basics of chromatography

I can generate a standard curve & determine concentrations of unknowns.

I understand the need for more than 1 type of protein assay

I understand the need for more than 1 type of protein assay

I understand the basic concepts & importance of enzyme kinetics

I understand how electrophoresis is used to separate protein/DNA

13

8

8

8

0

0

0

0

6

56

15

6

40

73

31

33

19

23

44

35

54

27

29

46

27

10

21

23

6

0

21

15

35

2

13

27

0

0

19

6

Sample survey questions & responses (%) are shown (grey)

Results of task related questions (Far right , yellow) displays overall class performance

(% correct).

73

54

56

67

69

48

67

42

Final Exam Results

Scores represent percentage of students receiving full credit for each question.

Class Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10

Bonus

Q's

Average

Exam

Score (%)

Spring

2010

Spring

2011

92.2

76.3

92.5

75.6

66.7

64.4

68.1

80.4

56.3

81.5

70.4

95.6

68.0

83.5

75.7

73.2

73.5

68.5

81.4

69.7

84.6

65.2

79.2

82.9

However, some areas still requiring improvement (indicated by yellow) include:

• Interpreting graphic data (Q’s 2, 6, 9) – graphical/SDS-PAGE results

• Comprehension of enzyme assays and kinetics (Q’s 5, 9)

• Performing biochemical calculations (Q’s 7, 9)

Lab Skills

– Skills necessary

– Theory/background on experimental procedures

– Data analysis

– Instrumentation exposure

22

WHEN SKILL IS LEARNED AND LEVEL

BMB SKILLS

Adapted from BMBEd

Vol. 32, No. 1, pp. 11 –16, 2004

Theory

Lower Level

Lab skills

Usage Proficiency Theory Usage Competence

LAB TECHNIQUES

The ory

BMB Courses

Usa ge

Competenc e

Acid/Base chemistry

Affinity techniques • Review of matrix and discussion cDNA

Cell Culture-Aseptic/Sterile

Techniques

Cell Culture: Adherents vs. suspension

Cell Culture-Bactierial/insects

Cell Culture-Mamallian

Centrifugation-high speed

Centrifugation-separation and ppt

Centrifugation-subcellular fractionation

Centrifugation-ultraspeed

Characterization of carbohydrates

Characterization of lipids

Characterization of proteins

Chromatography-Affinity

Chromatography-ion exchange

Chromatography-size exclusion

Chromatography-HPLC

TYPE

Qua ntitativ e

Qual itativ e

23

Dialysis and Desalting

BMB SKILLS

Adapted from BMBEd

Vol. 32, No. 1, pp. 11 –16, 2004

WHEN SKILL IS LEARNED AND LEVEL

Lower Level

Courses Upper Level BMB Courses

TYPE

LAB TECHNIQUES

Acid/Base chemistry

Affinity techniques

Amino acid analysis cDNA

Cell Culture-Aseptic/Sterile

Techniques

Cell Culture: Adherents vs. suspension

The ory

C111

C120

Usag e

C120

Proficienc

C120 y

Theor y

C321

C370

C370

C426

C370

B215 B215

B215 B215

B205

B215

B205

B215

Cell Culture-Bactierial/insects

Cell Culture-Mamallian

Centrifugation-high speed

B215 B215

B215 B215

Centrifugation-separation and ppt

Centrifugation-subcellular fractionation B215 B215

Centrifugation-ultraspeed

Characterization of carbohydrates

Characterization of lipids

B215

B205

B215

B421

B390

B390

B411

B421

B390

B411

C370

C370

C370

C370

Usag e

C321

C370

Compete nce

C321

C370

Theor y

C321

C370

Usag e

Compete nce

370

B421

B390

B390

B411

B421

B390

B411

C370

C370

C370

B421

B390,

B421

B390

B411

B421

B390

B421

C370

B313

B215

B421

C370

B313

B215

B421

B390

B421

B205

B215

B390

B421

B390

B421

B390

B421

B205

B215

B390

B421

B390

B421

C370

C370

C370

C370

B421

B390

B421

B431

B390

B421

B390

B421

Characterization of proteins

Chromatography-Affinity

C370

C370

C370

C370

C370

C370

C470

C370

C370

Qua ntitativ e

Quali

tativ e

X

X

X

X

X X

X

X

X

X

X

X

X

X

X

X

X

Lab Performance Rubric

• Does student arrive on time?

• Does student have all required lab materials?

– Notebook

– Manual

– Lab coat

– Goggles

• Can student answer questions regarding the day’s lab activity?

• Can student perform methods associated with day’s activity?

• Does student set up their experiment independently?

• Does student use time well?

• Does student write in notebook

• Does student ask questions that they should already know the answers to?

• Does student critique/evaluate their results effectively?

• Can student troubleshoot?

• Can the student explain to other students?

• Does the student clean up their bench and store materials correctly?

A

3:30

How much do students NEED to know?

• How to pour gels vs. precast (time vs. $$)

• Kits vs. preparing solutions/reagents ahead of lab time

• Using TA’s to prep?

• Other

B

How To Hone Basic Lab skills

• Incorporate into Course (BIOL 240)

– Pipetting Activity, Solution Making

– Spectrophotometry Activity

– pH Exercise

– Casting and Running gels

– Sterile Technique

– Instrumentation Principals

• Lab Skills Course at MMC (BIOL 251)

A

Lab Skills

Course

(BIOL 251)

What do you folks do?

Lab Skills

Make it an everyday activity

EVERYDAY CHECKLIST

GENERAL LAB ITEMS

• Did you make a schedule for when you will be working and in the lab?

• Do you have proper PPE?

• Did you check your email?

Did you check to see if any notes were left for you?

• Did you make a list for yourself of task for day

• Are these tasks in order of importance

TISSUE CULTURE

• Did you check Tissue Culture?

• Did you look at your cells under

Did you have the proper background and readings for task?

Did you prepare all reagents and materials for experiment day before?

microscope ?

• Did you check for contamination in

Did you write out the protocol in your lab book?

Did you write in your lab notebook?

Did you clean up after the experiment

– Cleaned dishes/bench paper/ put away reagents and instruments incubator?

• Did you check the CO

2 tanks?

• Full/leaking/at right PSI

• Did you check the incubator?

Did you print out a copy of results and put in results binder

Did you put results in lab notebook

• Temp/CO

2 input

• Did you check to see if you have all

• Did you restock supplies used

– Pipet tips/ autoclaved deionized water/ pipettes

– If you used the last one did you report it?

• Did you properly label all reagents?

• materials under hood/ stocked in TC

Did you do all TC chores

Did you check Tissue Culture before you locked up for night?

• Did you properly store all reagents?

– Rm temp/ 4°/-20°

• Is your work space clean and clear?

• Did you make a list of tasks for the next day?

• Did you prepare all reagents materials and lab notebook for tasks next day?

• Incubator on at right settings/ no leaks/

UV LIGHT ON?

Are the proper signs on the door for TC

Did you put out the garbage

• Did you put out the lab garbage?

• Did you lock the lab?

• Did you say goodbye?

Acid into water

DNA runs to red A

WORDS OF WISDOM

• Make a schedule and stick to it

• Do not eat in the lab

• Don’t get too comfortable

• Make a list of tasks and arrange them in order of importance

• Do not put off small tasks or they will never get done

• Do TC in the morning when you are bright and awake

• Write out complete protocol in lab notebook day before experiment

• Make sure all reagents are out/prepared the day before experiment

• Unlock doors and return keys

• Do not keep common lab materials in 611

• Clean up before you leave each night

• Haste makes waste (take it slow)

• Make time in week to read primary lit papers

• Go to lab meetings with results printed or ready to be easily displayed

• Go to lab meetings prepared to discuss issues and topics

• Be honest, don’t say you did something when you didn’t

• Be honest when you feel overwhelmed

• It takes time to place orders (make sure you have all materials)

• You know it when you can explain it to someone else

• Explain it in different ways

• mg/ml= ug/ul

• Thawing on ice may take a while; take that into account

• Give yourself a time frame then double it to get something done

A

Reinforcement or Redundancy?

• Compare Syllabi

• Communicate

B

Reinforcement or Redundancy?

MMC Cell/Molec Lab (240) Biochemistry (441)

• Lab Safety and the Lab Report

• Separation of Proteins by Charge

• Separation of Protein by MW

• Nucleosome Structure

• Karyotyping Human Cells

• Advanced Microscopy/Cell Culture

• Intro to Bioinformatics: DNA Sequencing

• Cloning, Transformation, Phenotype Assay

• Cell Culture (con’t); Insect Cells

• PCR-based DNA Profiling

A

Reinforcement or Redundancy?

MWSU Biochemistry Lab (370) Molec Cell Bio Lab (115)

• Pre-Lab Assessment

• Pipette Calibration 

• CMC by Fluorescence

• pH and Buffers

• Titration of Amino Acids

• Protein Quantification (BCA/Bradford)

• Gel Filtration Chromatography

• Bioinformatics

• Protein Purification Project (Ion Ex. chrom)

• Protein Purification Project (Affinity chrom.)

• Protein Purification Project (SDS-PAGE)

• Protein Purification Project (Western Blot)

• Enzyme Kinetics

(Lowry)

B

Other Things to Consider

• Peer Mentors

• Teaching Assistants

• Buy or make Lab Manual?

• How much student prep?

• Kits?

• Cost?

• Waste Handling/Safety

• Resources

A

Example Lab Activities

• www.Drop-box.com

• Share your Lab ideas, experiments, exercises, etc…

• Register, let Ben know – share folder

Good Resources

Open Discussion

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