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AP Biology

Our AP Biology course covers all eight units of the College Board framework: chemistry of life, cell structure and function, cellular energetics, cell communication and the cell cycle, heredity, gene expression and regulation, natural selection, and ecology. You practise the multiple-choice section and the six free-response questions, including experimental design and data analysis. Lessons are live and one-to-one with a verified tutor, who uses College Board style multiple-choice and free-response questions and scores practice answers against the published rubrics. Suitable for students in the US and at international schools sitting the May exams.

Reviewed by N. Kanik, Master's in Biology / Life SciencesLast updated

500 enrolled·50 lessons·50h·Advanced·English
50
Lessons
50h
Total duration
500
Students enrolled
Advanced
Level

What you will learn

Learning outcomes

  • Explain biological macromolecules and their functions
  • Analyze cell structure and function
  • Explain cellular energetics and metabolism
  • Understand cell communication and the cell cycle
  • Apply principles of heredity and genetics
  • Analyze gene expression and regulation
  • Explain natural selection and evolution
  • Analyze ecological relationships
  • Interpret biological data and graphs
  • Design and evaluate scientific investigations
  • Apply quantitative skills to biological problems
  • Develop evidence-based scientific explanations
  • Solve AP-style multiple-choice questions
  • Solve AP-style free-response questions

Prerequisites

  • Basic Biology
  • Basic Chemistry
  • Cell structure
  • Genetics fundamentals
  • Scientific method
  • Graph interpretation
  • Basic algebra

Tags

AP BiologyAP Bio tutorAP Biology exam prepAP Biology free responseAP Biology unitsCollege Board APGrade 11Grade 12

Course structure

Syllabus(9 modules)

  • Structure of Water and Hydrogen Bonding
  • Elements of Life
  • Introduction to Biological Macromolecules
  • Properties of Biological Macromolecules
  • Structure and Function of Biological Macromolecules
  • Nucleic Acids

What is AP Biology?

In short: this course gives one-to-one online tutoring for AP Biology. A verified biology tutor teaches every unit, data analysis and statistics such as chi-square, and free-response technique, using College Board-style practice.

AP Biology is a College Board Advanced Placement course equivalent to a two-semester introductory college biology course. It covers eight units, from the chemistry of life to ecology, and builds science practices such as experimental design and data analysis. The exam is taken in May, scored 1 to 5, and many colleges give credit for a qualifying score.

This course covers the full AP Biology curriculum one to one with a verified biology tutor.

Official specification: AP Biology exam (College Board).

For wider support, see our biology tutoring page, or the AP Chemistry course if you also take chemistry.

What is the AP Biology exam format?

The AP Biology exam is a hybrid digital exam lasting 3 hours: you answer multiple-choice questions in the Bluebook app and handwrite free-response answers in a paper booklet. Calculators and reference materials are permitted.

SectionQuestionsTimeWeighting
I: Multiple choice601 hour 30 minutes50%
II: Free response61 hour 30 minutes50%

AP exams are scored on a 1 to 5 scale. Exam details from AP Students (College Board).

Which units does AP Biology cover?

UnitTopic
1Chemistry of life
2Cell structure and function
3Cellular energetics
4Cell communication and cell cycle
5Heredity
6Gene expression and regulation
7Natural selection
8Ecology

How do you answer AP Biology free-response questions?

AP Biology FRQs test experimental design, data analysis and applying concepts.

  1. Identify the command word: describe, explain, justify, predict.
  2. Name independent and dependent variables and controls.
  3. Use data from graphs and tables with figures.
  4. Write concise, specific biological explanations.
  5. Answer every part; each earns separate points.

What does a worked AP Biology statistics question look like?

Here is a typical chi-square question: a cross expected to give a 3 : 1 ratio produces 84 dominant and 36 recessive offspring out of 120.

StepWorking
Expected90 and 30
(O − E)² ÷ E0.4 and 1.2
χ²1.6
Critical value (df = 1, p = 0.05)3.84
Conclusion1.6 < 3.84, so fail to reject the null hypothesis

Where do students lose marks in AP Biology?

Students most often lose free-response points by not answering exactly what the task verb asks, skipping units or justification, leaving work unlabelled and running out of time on long questions.

Mark-loserWhat to do instead
Ignoring the task verbAnswer exactly what "justify", "explain" or "calculate" asks
Missing units or justificationShow units and reasoning for every answer
Unlabelled workLabel graphs, diagrams and steps
Time pressurePractise timed free-response sets
Guessing patterns in multiple choiceEliminate options using reasoning

Statistics and lab skills

AP Biology expects calculations such as chi-square, standard error, Hardy-Weinberg equilibrium, water potential and rates. Tutors practise these with the formula sheet so you can use them quickly and accurately.

How the lessons work

Lessons are live and one to one on video with a shared whiteboard. Your tutor uses released College Board free-response questions and scoring guidelines. FLN Tutors is not affiliated with the College Board. See also AP Chemistry, IB Biology SL and our Biology subject page.

AP Biology tutor online: who this course is for, prerequisites and study plan

An AP Biology tutor online gives you live 1-to-1 lessons on all eight units, with practice on data and statistics questions and free-response technique.

This course suits high school students taking AP Biology at school or self-studying, in the US and abroad.

Prerequisites: basic biology and chemistry, genetics fundamentals, graph reading and basic algebra.

Course length: 50 one-hour lessons across 9 modules.

StageTopicsWhat you can do afterwards
1Chemistry of life; cells; cellular energeticsExplain molecules, cells, photosynthesis and respiration
2Cell communication and cell cycle; heredityExplain signalling and solve genetics problems
3Gene expression and regulation; natural selectionExplain gene control and evolution
4Ecology; laboratory and scientific practicesAnalyse data and explain ecosystems

Where it leads: see the AP Chemistry course, or our biology tutoring page.

AP Biology: frequently asked questions

How long is the AP Biology exam?

3 hours: 60 multiple-choice questions and 6 free-response questions.

How many units are in AP Biology?

Eight units.

Is there a formula sheet for AP Biology?

Yes. A formula sheet is provided, including chi-square and Hardy-Weinberg.

How is AP Biology scored?

On a scale of 1 to 5.

Is a calculator allowed?

Yes. A four-function, scientific or graphing calculator is allowed in both sections.

What is the hardest AP Biology unit?

Many students find cellular energetics and gene expression and regulation the hardest.

How do I get a 5 in AP Biology?

Learn the content, master the science practices and practise released free-response questions.

Do you use College Board materials?

Yes. Tutors use released free-response questions and scoring guidelines.

How much does an AP Biology tutor cost?

The price depends on the tutor and session length. You see the hourly rate before booking, with no subscription.

Can I study online from any country?

Yes. Lessons are online and scheduled around your time zone.

How many multiple-choice questions are on the AP Biology exam?

60 questions, worth 50% of the score.

How many free-response questions are there?

6 questions, worth 50% of the score.

Is the AP Biology exam digital?

It is a hybrid digital exam: multiple choice in the Bluebook app and handwritten free-response answers in a paper booklet.

Is AP Biology hard?

AP Biology has a large amount of content and asks you to apply ideas to experiments and data, so it is demanding but manageable with steady study. Students usually find free-response questions and statistics, such as chi-square tests, the hardest. Regular practice with released questions and clear feedback on answers makes a 4 or 5 realistic.

What is AP Biology equivalent to in the UK?

AP Biology is a college-level course, roughly comparable to A-Level Biology in content difficulty, although the structure and assessment differ. UK universities often accept strong AP scores, usually several 5s, alongside other qualifications. Always check the specific entry requirements of each university and course you apply to.

Do you offer lessons in my time zone?

Yes. Lessons are online, so you can book times that suit your time zone.

How do I do a chi-square test in AP Biology?

Calculate expected values, sum (O − E)² ÷ E, find degrees of freedom and compare with the critical value.

Which units are hardest in AP Biology?

Many students find cell communication, gene expression and data analysis questions hardest.

How do I answer AP Biology free-response questions?

Answer each part directly using the task verb, and support claims with data from the question.

Where can I find AP Biology past exam questions?

College Board publishes past AP Biology free-response questions with scoring guidelines on its AP Central website. Work through them under timed conditions, then mark your answers with the guidelines. Your tutor uses the results to choose which units to revisit before the exam.

Can I get an AP Biology tutor online?

Yes. You can learn with a 1-to-1 AP Biology tutor online through live video lessons from any country. Your tutor explains each unit, practises data and statistics questions and shows you how to write clear free-response answers under exam timing.

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