NON-SYLLABUS: The Use of Models in Biology, Research Questions + Hypotheses

Question 1

What are the two main purposes of models

Answer 1

To be used by scientists as prediction/proof of hypotheses and to convey scientific knowledge to a target audience

Question 2

How can models communicate scientific information to the public?

Through what features?

Answer 2

Visual techniques such as the use of various colours, textures, labelling, scale, etc. Elements such as font, font size and neatness can also contribute to making a model more digestible.

Question 3

How can models be used to predict processes

Answer 3

Types of scientific models include diagrams, digital and physical representations, digitally generated simulations, and mathematical models. These models are especially adept at predicting events that cannot be practically measured, and can provide a basis for new hypotheses or build on previously established theories.

Question 4

What are examples of models for prediction/proof and communication?

Answer 4

Communication - Our model of polypeptide synthesis. Can also be predictive (which amino acids will be formed)
Proof - Watson and Crick’s double helix DNA model

Question 5

What are some limitations of your model

Answer 5

• Lacks a continuous scale
• Could use colour more effectively (e.g. as a background to distinguish between the nucleus and cytoplasm
• Lacks a legend and scale
• Not interactive/engaging
• Not cohesive/animated

Question 6

What are some strengths of your model

Answer 6

• Uses colour consistently for features such as DNA strands and mRNA
• Labelled parts
• Shows both 2D and 3D representations (individual nucleotides and the whole complex)
• Consistent symbols used despite lack of legend