Biology Test Study Guide 2026
Everything you need to pass the Biology Test exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 Biology Test Exam Format at a Glance
📚 Biology Test Topics to Study (31)
✍️ Sample Biology Test Questions & Answers
1. Which term describes organisms that live suspended or swimming in open water, unable to overcome currents?
Plankton are organisms that drift with ocean currents and include both phytoplankton (photosynthetic) and zooplankton (heterotrophic).
2. During meiosis, homologous chromosomes exchange genetic material through which process?
Crossing over occurs during prophase I when non-sister chromatids of homologous chromosomes exchange segments at points called chiasmata.
3. What is the primary function of chloroplasts in plant cells?
Chloroplasts are the organelles responsible for photosynthesis, converting light energy into chemical energy (glucose) using carbon dioxide and water.
4. What is the functional unit of the kidney?
Each nephron, consisting of a renal corpuscle and renal tubule, performs the complete process of filtration, reabsorption, and secretion.
5. What does the Hardy-Weinberg principle predict about allele frequencies in a population?
The Hardy-Weinberg principle states allele and genotype frequencies remain constant across generations in a non-evolving population.
6. The exchange of gases between the blood and body tissues is called:
Internal (tissue) respiration is the exchange of O₂ and CO₂ between systemic capillary blood and surrounding tissue cells.
🎯 Free Biology Test Practice Tests
📖 Biology Test Guides & Articles
- 8th Class Biology Question Paper 2026: Format, Key Topics, Sample Questions and Study Plan
- Chi Square Practice Problems AP Biology: Worked Examples, Formulas, and Answers
- Biology Crash Course: Fast Review of Biology Terminology, Core Concepts and Practice Tests
- Regents Biology Practice Questions: Complete Living Environment Study Guide
- AP Biology MCQ Practice: Biology Terminology, Strategies & Free Questions
- General Biology Online Course: Master Biology Terminology, Concepts & Career Paths
- Biology Keystone Practice Test: Complete Study Guide & Exam Prep
- Study Finds Ultra-Processed Foods Accelerate Biological Aging: What Biology Students Need to Know
What Practice Test Geeks adds beyond an AI chat for Biology
An AI chatbot can quiz you, but it can't reproduce the exam conditions or keep your record. Here you get:
- A timed, full-length Biology mock exam — 115 questions in 90 minutes with a 50% pass mark, modeled on the official exam's question count and time limit, followed by a score report broken down by exam domain.
- A fixed Biology question bank: the same test every attempt, so your score is comparable from one try to the next instead of changing with every regenerated quiz.
- Progress saved on your device: completed tests, scores and missed questions stay in My Progress, so you can retake only what you got wrong.
- A printable Biology cheat sheet you can print or save as a PDF.
- Biology flashcards built from the same question bank.
- Free Biology practice tests with the correct answer shown after each question.
How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. We have not yet matched this exam's facts to an official source, so confirm fees, dates and rules with the exam body. Not reviewed by a subject-matter expert. Editorial policy