3

1. SSI3013
INFORMATION AND COMMUNICATION
TECHNOLOGY IN SCIENCE
ASSIGNMENT 3 : SIMULATION
NAME ID NUMBER
NOORINTAN BINTI MOHD HARIS D20161073833
NURIN SYAHIRAH BINTI HANAPI D20161073883
NURLIZA BINTI ALIYAS D20161073905
GROUP : A
LECTURER : ENCIK AZMI BIN IBRAHIM

2. LACTASE ENZYME ACTIVITY
WITH DATA ANALYSIS

3. SIMULATION
• A simulation is the imitation of the operation of real-world
process or system over time.
• Simulation can be used as:
i. Analysis tool for predicating the effect of changes.
ii. Design tool to predicate the performance of new system.
• When Simulation Is the Appropriate Tool?
i. Simulation enable the study of internal interaction of a
subsystem with complex system.
ii. Simulation can be used with new design and policies
before implementation.
• When Simulation Is Not Appropriate?
i. When the problem can be solved by common sense.
ii. If it is easier to perform direct experiments.

4. STELLA
• STELLA - Systems Thinking for Education and Research from isee
Systems
• Modelling software package that diagrams, charts, and uses
animation help visual learners discover relationships between
variables and helps simplify model building.
• It teaches students to think systemically, to gain a more profound
understanding, and to make better decisions.

5. ADVANTAGES AND DISADVANTAGES
OF SIMULATION
Advantages of simulation Disadvantages of simulation
1. A simulation study can help in
understanding how the system
operates
1. Model building requires special
training.
2. New policies, operating
procedures, information flows can
be explored without disrupting
ongoing operation of the real
system.
2. Simulation modeling and analysis
can be time consuming and
expensive.
3. Time can be compressed or
expanded to allow for a speed-up
or slow-down of the process.
3. Simulation results can be difficult
to interpret.

6. SAMPLE MODEL
USING STELLA
SIMULATION:
LACTASE ENZYME
ACTIVITY WITH
DATAANALYSIS
The three factors
that you can
manipulate in the
model include the
initial amount of
glucose, pH, and
temperature
The goal of this simulation
is to understand three
factors that affect the rate
that the enzyme lactase
converts lactose into
glucose and galactose.
Enzymes are the
largest and most
diverse group of
proteins produced by
living organisms.
The main function
of an enzyme is to
speed up a chemical
reaction.

7. SIMULATION
The Change of Initial Lactose Parameter
The Change of Temperature Parameter

8. The Change of pH Value Parameter
The Change of Initial Lactose, Temperature and pH Value
Parameter

9. Graph 1 shows the represent all graphs when each of parameter
changed
Run 1: Initial lactose = 500 mg/L, temperature = 25℃, pH value = 7.0
Run 2: Initial lactose = 750 mg/L, temperature = 25℃, pH value = 7.0
Run 3: Initial lactose = 500 mg/L, temperature = 75℃, pH value = 7.0
Run 4: Initial lactose = 500 mg/L, temperature = 25℃, pH value = 10.5
Run 5: Initial lactose = 750 mg/L, temperature = 75℃, pH value = 10.5

10. • Students can ask questions using the models and carry out the
investigations running dozens of trials and experiments in a single class
period.
• Simulations create data for students to reflect on because they enjoy
running simulations, and in the process they gain a deeper understanding
of the variables in a system.
• Students using simulations should use the data to predict their decisions.
CONCLUSION