AP CENTRAL FRQ's   2023     2022-1999         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 Chi-Square    

PHOTOSYNTHESIS CELLULAR RESPIRATION

PHOTOSYNTHESIS

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



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

2013 #4     2013 All questions      2013 RUBRIC            Sample Responses Q4
Role of photosynthesis/Cellular Respiration in nutrient cycling
Explain movement of carbon in ecosystem
Identify organisms that use both processes

2012 #4  2012 All Questions           Scoring Guidelines          Sample Responses Q4
Role of photosynthesis/cellular respiration in carbon cycle
Predict impact of environmental change on ecosystem
(food webs, climate change, succession)
Human impact on climate change/ocean acidification

2010 B  #1   2010 B All Questions                    Scoring Guidelines            Sample Responses Q1
Explain how chromatograph can be used to separate pigments
Role of pigments in capturing light energy and converting it to chemical energy
Calculate  Rf value

2007 #3  2007 All Questions         Scoring Guidelines         Sample Responses Q3
Impact of abiotic factors on productivity
Food chains/trophic levels
Anatomical/physiological differences impact on CO2 uptake in plants
Evolutionary significance

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

1999 #1   1999 All Questions                 Scoring Guidelines           Sample Responses Q1     
Design experiment- effect of temperature, wavelegth, OR light intensity  
How would you measure rate of photosynthesis?
Predict/explain results 
      

RESPIRATION

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 #3            2021 All Questions      Scoring Guidelines  coming after exams are scored
Cellular respiration vs fermentation
Identify control
Predict results
Justify a claim

2019 #3    2019 All Questions              Scoring Guidelines            Sample Responses Q3 
Location of pathway
Predict effect of genetic mutation
Calculate genetic probability
  

2019 #7    All Questions      Scoring Guidelines          Sample Responses Q7
Glycolysis genes/proteins
Provide reasoning to explain chart
        

2017 #5  2017 All Free-Response Questions            Scoring Guidelines            Sample Responses Q5
Algal bloom
Meabolic pathways
Cellular respiration/Photosynthesis
Predict  impact of ecosystem change on populations

2017 #7   2017 All Free-Response Questions          Scoring Guidelines      Sample Responses Q7 
Metabolic pathways
Anaerobic/Aerobic respiration
Predict impact of environmental change on populations

2015 #2   2015 ALL Questions             Scoring Guidelines       Sample Responses Q2
Explain diagrams
Glycolysis, Krebs, ETC pathways
Compare ATP production
Calculate energy efficiency
Endosymbiotic theory
Evidence of shared evolutionary history

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

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



2012 #4   2012 All Questions           Scoring Guidelines          Sample Responses Q4
Role of photosynthesis/cellular respiration in carbon cycle
Predict impact of environmental change on ecosystem
(food webs, climate change, succession)
Human impact on climate change/ocean acidification

2008 #3  2008 All Questions      Scoring Guidelines      Sample Responses Q3
Impact of regulators:
~Cyclin/cell cycle
~Thyroxine/metabolic rate
~FSH/Ovarian cycle
~Predators/prey population dynamics
~Fire/Ecological succession

2007 #1   2007 All Questions          Scoring Guidelines         Sample Responses Q1
Molecular components of plasma membranes
Structure/function
Role of membranes in:
~ muscle contraction
~ fertilization of an egg
~ chemisomotic production of ATP
~ intercellular signaling

2007 #3  2007 All Questions         Scoring Guidelines         Sample Responses Q3
Impact of abiotic factors on productivity
Food chains/trophic levels
Anatomical/physiological differences impact on CO2 uptake in plants
Evolutionary significance

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