AP Biology Science Practice 1: Models and Representations

The video tutorial covers the importance of science practices in AP Biology, focusing on the use of models and visual representations. It explains DNA structure through modeling, discusses the four big ideas in AP Biology, and demonstrates how to create, describe, refine, and apply models. The tutorial emphasizes the role of models in understanding concepts like evolution, free energy, information flow, and systems, and highlights their application in genetic variation and signal transduction.

Why are science practices important in an AP Biology class?

• They help students memorize facts.

• They are only useful for teachers.

• They are not relevant to the AP Biology test.

• They enable students to apply knowledge effectively.

What did Watson and Crick develop to understand DNA?

• A genetic code

• A new type of microscope

• A model of DNA

• A chemical formula

Which of the following is NOT one of the four big ideas in AP Biology?

• Information Flow

• Evolution

• Free Energy

• Photosynthesis

What is the first task students should be able to do with models?

• Use models

• Refine models

• Create models

• Describe models

In the beetle population example, what type of selection is demonstrated?

• Directional selection

• Stabilizing selection

• Balancing selection

• Disruptive selection

What happens to water molecules in a semi-permeable membrane over time?

• They only move to the right side.

• They only move to the left side.

• They move to achieve equilibrium.

• They stop moving completely.

How can changes in mRNA sequence affect a protein?

• It only affects the protein's color.

• It makes the protein larger.

• It has no effect on the protein.

• It changes the protein's amino acids.

What process in bacteria can lead to genetic variation?

• Transduction

• Photosynthesis

• Mitosis

• Binary fission

What role does insulin play in signal transduction?

• It creates new glucose molecules.

• It destroys glucose molecules.

• It opens glucose transport gates.

• It blocks glucose transport.

What is a common problem in type 2 diabetes related to insulin?

• Insulin is converted to glucose.

• Too much insulin is produced.

• Insulin is not recognized by receptors.

• No insulin is produced.