AP CENTRAL FRQ's  2021     2019-1999            2020 Exam questions available in AP Classroom question bank

ANIMALS BODY SYSTEMS CELLS CELL DIVISION CELL SIGNALING
DNA RNA PROTEINS ECOLOGY  ENZYMES  EVOLUTION EXPERIMENTAL DESIGN
GENETICS GRAPHS/Math LABS METABOLISM MOLECULES
PLANTS PHOTOSYNTHESIS REGULATION RESPIRATION STRUCTURE & FUNCTION
TRANSPORT WATER      

EXPLAIN/DRAW GRAPHS and MATH CALCULATIONS

2021 #1   2021 All Questions      Scoring Guidelines  coming after exams are scored
Plasma membrane
Na+/K+ ATPase
Signal transduction pathway
Protein kinases
Experimental design
Dependent variable/controls
Explain data
Calculate expected
Predict/justify results of a change

2021#2            2021 All Questions      Scoring Guidelines  coming after exams are scored
Pedigrees
Mutations
Glucose structure/metabolism
Mitochondrial inheritance
Construct a graph from data
Make a prediction/Justify with data

2021 #4            2021 All Questions      Scoring Guidelines  coming after exams are scored
Explain data in grah
Reproductive isolation
Prezygotic mechanisms
Predict/justify phenotypic change

2021 #6            2021 All Questions      Scoring Guidelines  coming after exams are scored
Gene expression
Temperature impact on protein folding
Identify data points/explain trend on graph
Support a hypothesis
Alternative splicing

2019 #2       2019 Free -Response Questions                Scoring Guidelines              Sample Responses Q2
Limiting nutrients
Population growth
Calculate growth rate
Gene Regulation
Analyze data from graph
 

2018 #4    2018 All FRQ's           Scoring Guidelines      Sample Responses Q4
Experimental controls
Explain graph/SEM
Gene mutation/pesticide resistance

2018 #5 2018 All FRQ's           Scoring Guidelines             Sample Responses Q5
Symbiotic relationships
Impact of populations on each other
Make a graph prediction

 

2017 #1  2017 All Free-Response Questions    Scoring Guidelines     Sample Responses Q1
Construct a graph from data
Design experiment
Identify Null hypothesis
Predict results
Propose benefit/cost

2017 #2  2017 All Free-Response Questions             Scoring Guidelines         Sample Responses Q2 
Provide support using data from graphs
Make/support a claim
Describe advantage/disadvantange

2017 #5    2017  Free-Response Questions            Scoring Guidelines      Sample Responses Q5
Analyze graph
Identify metabolic pathway/organism

2016 #1  2016 ALL Free-Response Questions     Scoring Guidelines          Sample Responses Q1
Effect of salinity on allele frequency
Make a prediction from data
Osmoregulation
Make a prediction/Justify



2016 #2  2016  ALL Free-Response Questions               Scoring Guidelines            Sample Responses Q2
Limiting nutrients
Population growth
Calculate growth rate
Estimate population



2016 #3    2016 ALL Free-Response Questions     Scoring Guidelines         Sample Responses Q3
Explain graph
% dry weight/plant growth
Estimate
Energy sources
Evolutionary advantage

2016 #5   2016  ALL Free-Response Questions       Scoring Guidelines          Sample Responses Q5
Draw a graph
Make a prediction
Justify your answer
Symbiotic interactions

2016 #6     2016  ALL Free-Response Questions       Scoring Guidelines         Sample Responses Q6
cDNA
Experimental design
Ecosystem sampling
Explain results/Provide reasoning



2016 #8  2016 ALL Free-Response Questions     Scoring Guidelines  
Sample Responses Q8
Experimental design/controls
Explain graph
SEM

2015 #6  2015 ALL Questions             Scoring Guidelines       Sample Responses Q6
Use data from graph to explain concepts
Nutient availability
Changes in populations in ecosystem

2014 #1       2014 All question      Scoring Guidelines          Sample Responses Q1
Artificial selection lab
Trichome data
Create a graph/SEM
Dependent/independent variables
Predict experimental results

2014 #4  2014 All questions                  Scoring Guidelines                       Sample Responses Q4
Provide reasoning for graph change
Evolutionary mechanisms



2014 #7     2014 All questions             Scoring Guidelines                            Sample Responses Q7
Draw a graph
Thermoregulation
Support claim with evidence from graph



2013 #1   2013 All questions      Scoring Guidelines            Sample Responses Q1
Fruit fly Choice lab
Experimental design
Controls
Chi Square
Propose a model

    


2013 #2    2013 All questions       Scoring Guidelines      Sample Responses Q2      
Chlorophyll/Bacteriorhodopsin
Explain graph/analyze data
Make/justify a prediction about photosynthetic rate
Evolutionary history of photosynthesis

2012 #2   2012 All Questions                 Scoring Guidelines             Sample Responses Q2
Cellular respiration pathways
Calculate rate from graph/show work
Effect of temperature on rate of reaction
Predict impact of pathway disruption

2011 #4 2011 ALL Questions                 Scoring Guidelines             Sample Response  Q#4
Transpiration
Explain data from graph
Calculate rate
Identify/explain structural adaptations impact on transpiration
Water potential equation

2011 B #2   2011 B All questions       Scoring Guidelines     Sample Responses Q2
Use graph to explain ecological concepts
Ecological succession
Diversity
Species interaction
Biotic/abiotic factors
Design a controlled experiment




2010 #2 
2010 All Questions         Scoring Guidelines               Sample Responses Q2
Amylase Enzyme Lab
Make a graph from data provided
Calculate reaction rate
Explain changes in graph over time
Make a graph prediction about doubling amylase concentration
Explain the effect of environmental factors on enzyme activity

2008 #2      2002B All Questions            Scoring Guidelines          Sample Responses Q2
Explain a graph
Gross/net Primary productivity
Seasonal changes

2008 #3 B   2008 B All Questions          Scoring Guidelines          Sample Responses Q3
Hardy Weinberg conditions
Equations
Calculations

2006 B #3     2006B All Questions            Scoring Guidelines              Sample Responses Q3
Explain a graph
Environmental factors impacting transpiration
Mechanism of water uptake/transport in ascular plants
Role of water

2005 #1     2005 All Questions         Scoring Guidelines                  Sample Responses Q1
Yeast respiration LAB
Draw graph
Determine optimum temperature
Impact of temperature on enzymes
Design experiment
Predict results

2005B #4 2005B All Questions         Scoring Guidelines                  Sample Responses
Potato core lab
Make a graph from data
Determine molarity of potato cores from graph
Wter potential
Tonicity

2004 #3   2004 All Questions           2004 All Questions      Sample Responses Q3   
Photosynthesis Lab
Graph data
Identify controls
Relate data to biological concepts



2002 #4      2002 All questions    Scoring Guidelines            Sample Responses Q4

Osmosis Diffusion Lab (Dialysis bags)
Graph data
Predict results
Relate data to biological concepts

2001 #3    2001 All Questions     Scoring Guidelines      Sample Responses Q3
Dissolved oxygen in eutrophic lake
Graph data provided
Predict change in graph
Explain data/results
Predict/explain results of environmental change



2000 #1  2000 All Questions         Scoring Guidelines           Sample Responses Q1
Explain a graph
Effect of temperature/pH on enzyme activity
Enzyme structure/funtion
Describe experiment
State hypothesis