AP Biology 2021 Questions And Answers
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AP Biology is a college-level course and exam offered to high school students through the College Board’s Advanced Placement (AP) program. It is designed to provide students with a rigorous foundation in biological principles, equivalent to an introductory college biology course for science majors.
The AP Biology 2021 exam tested students on foundational biological concepts, scientific inquiry, and data analysis.
The free-response questions from the 2021 exam covered a variety of topics, including:
Question 1 (Long): Polycystic kidney disease, membrane transport, and cell signaling.
Question 2 (Long): Pedigree analysis, glucose metabolism, and genetics.
Question 3 (Short): Mitochondria and cellular respiration.
Question 4 (Short): Finch evolution and natural selection.
Question 5 (Short): Invasive species and biodiversity.
Question 6 (Short): Enzyme kinetics and data analysis.
Questions And Worked Solutions For AP Biology FRQ 2021 Exam
Click on the following image to get the complete paper of AP Biology 2021 Free Response Questions. Scroll down the page for step-by-step solutions.
AP Biology 2021 Free Response Questions - Complete Paper (pdf)
2021 AP Biology Free Response Solutions for Question 1
- Polycystic kidney disease (PKD) is an inherited disease that causes water loss from the body and affects cell division in the kidneys …
2021 AP Biology Free Response Solutions for Question 2
- Geneticists investigated the mode of inheritance of a rare disorder that alters glucose metabolism and first shows symptoms in adulthood. The geneticists studied a family in which some individuals of generations II and III are know to have the disorder …
- Researchers hypothesize that the plant compound resveratrol improves mitochondrial function. To test this hypothesis, researchers dissolve resveratrol in dimethhy sulfoxide (DSMO) …
- In 1981, a single immature male Geospiza conirostris finch flew more than 100 kilometers from the Galapagos island of Espanola to the Galapagos island of Daphne Major, where no G. conirostris finches were living …
- Annual plants complete their life cycle, including germination, seed production, and death, within one year. Ambrosa trifida (giant ragweed) is an annual plant that readily colonizes any land that has had a disturbance such as plowing …
- The small invertebrate krill species Thysanoessa inermis is adapted to cold (4°C) seawater. Over the past ten years, there has been a gradual increase in the water temperature of the krill’s habitat …
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