AP Biology-MCQs and Free response -Exam Style Practice question and Answer

Multiple Choice Questions

MCQs

  • Time: 90 minutes 
  • 60 multiple – choice questions (core)
  • No marks deducted from incorrect answers
  • A four-function, scientific, or graphing calculator is allowed 
  • 50% weight

Free-Response Questions

  • Time: 90 minutes 
  • 6 FRQ Questions
    • Question 1: Interpreting and Evaluating Experimental Results (8–10 pts)
    • Question 2: Interpreting and Evaluating Experimental Results with Graphing (8–10 pts)
    • Question 3: Scientific Investigation (4 pts)
    • Question 4: Conceptual Analysis (4 pts)
    • Question 5: Analyze Model or Visual Representation (4 pts)
    • Question 6: Analyze Data (4 pts)
  • No marks deducted from incorrect answers
  • A four-function, scientific, or graphing calculator is allowed 
  • 50% weight

Free-Response Questions(FRQs)

MCQs

  • Time: 45 minutes 
  • 35 multiple – choice questions (core)
  • No marks deducted from incorrect answers
  • A four-function, scientific, or graphing calculator is allowed 
  • 50% weight

Free-Response Questions

  • Time: 45 minutes 
  • 3 Questions
  • No marks deducted from incorrect answers
  • A four-function, scientific, or graphing calculator is allowed 
  • 50% weight

Unit 1: Chemistry of Life

  • 1.1 Structure of Water and Hydrogen Bonding
  • 1.2 Elements of Life
  • 1.3 Introduction to Biological Macromolecules.
  • 1.4 Properties of Biological Macromolecules
  • 1.5 Structure and Function of Biological  Macromolecules
  • 1.6 Nucleic Acids

Unit 2: Cell Structure and Function

  • 2.1 Cell Structure: Subcellular Components
  • 2.2 Cell Structure and Function
  • 2.3 Cell Size
  • 2.4 Plasma Membranes
  • 2.5 Membrane Permeability
  • 2.6 Membrane Transport
  • 2.7 Facilitated Diffusion
  • 2.8 Tonicity and Osmoregulation
  • 2.9 Mechanisms of Transport
  • 2.10 Cell Compartmentalization
  • 2.11 Origins of Cell

Unit 3: Cellular Energetics

  • 3.1 Enzyme Structure
  • 3.2 Enzyme Catalysis
  • 3.3 Environmental Impacts on Enzyme Function
  • 3.4 Cellular Energy
  • 3.5 Photosynthesis
  • 3.6 Cellular Respiration
  • 3.7 Fitness

Unit 4: Cell Communication and Cell Cycle

  • 4.1 Cell Communication
  • 4.2 Introduction to Signal Transduction
  • 4.3 Signal Transduction
  • 4.4 Changes in Signal Transduction Pathways
  • 4.5 Feedback
  • 4.6 Cell Cycle
  • 4.7 Regulation of Cell Cycle

Unit 5: Heredity

  • 5.1 Meiosis
  • 5.2 Meiosis and Genetic Diversity
  • 5.3 Mendelian Genetics
  • 5.4 Non-Mendelian Genetics
  • 5.5 Environmental Effects on Phenotype
  • 5.6 Chromosomal Inheritance

Unit 6: Gene Expression and Regulation

  • 6.1 DNA and RNA Structure
  • 6.2 Replication
  • 6.3 Transcription and RNA Processing
  • 6.4 Translation
  • 6.5 Regulation of Gene Expression
  • 6.6 Gene Expression and Cell Specialization
  • 6.7 Mutations
  • 6.8 Biotechnology

Unit 7: Natural Selection

  • 7.1 Introduction to Natural Selection
  • 7.2 Natural Selection
  • 7.3 Artificial Selection
  • 7.4 Population Genetics
  • 7.5 Hardy-Weinberg Equilibrium
  • 7.6 Evidence of Evolution
  • 7.7 Common Ancestry
  • 7.8 Continuing Evolution
  • 7.9 Phylogeny
  • 7.10 Speciation
  • 7.11 Extinction
  • 7.12 Variations in Populations
  • 7.13 Origin of Life on Earth

Unit 8: Ecology

  • 8.1 Responses to the Environment
  • 8.2 Energy Flow Through Ecosystems
  • 8.3 Population Ecology
  • 8.4 Effect of Density of Populations
  • 8.5 Community Ecology
  • 8.6 Biodiversity
  • 8.7 Disruptions to  Ecosystems

Course Content

The AP Biology Exam assesses student understanding of the science practices and learning objectives outlined in the course framework. The exam is 3 hours long and includes 60 multiple-choice questions and 6 free-response questions. A four-function, scientific, or graphing calculator is allowed on both sections of the exam.

Exam Weighting for the Multiple-Choice Section of the AP Exam
Unit Exam Weighting
1: Chemistry of Life 8–11%
2: Cell Structure and Function 10–13%
3: Cellular Energetics 12–16%
4: Cell Communication and Cell Cycle 10–15%
5: Heredity 8–11%
6: Gene Expression and Regulation 12–16%
7: Natural Selection 13–20%
8: Ecology 10–15%