Botany Practice Tests
Free, AI-generated Botany practice tests for Science Olympiad. Choose Invitational, Regional, State, or National difficulty, import past exam PDFs, and track your scores over time.
Botany runs in both Division B and Division C for the 2027 season.
Indexed Botany Practice Tests by Difficulty
Reviewed full-length Botany practice tests, each with every question and answer choice listed on its own page.
Easy:10 questions · 2026
What Botany Tests Cover
plant biology for the 2027 season: plant structure, physiology, reproduction, taxonomy, evolution, and the roles of plants in ecosystems and society.
Event focus 2027
- Brand-new event for 2027 in BOTH Division B and Division C
- Run as a sit-down exam or lab stations with specimens, pictures, data, microscopes, and slides
- Know the major divisions between plant groups: algae vs. multicellular plants, monocot vs. dicot, embryophytes vs. cryptogams, woody vs. herbaceous
Plant structure
- Roots: absorption + anchorage; root hairs increase surface area; taproot vs. fibrous
- Stems: support + transport; nodes/internodes; meristems (apical = primary growth, lateral = secondary growth)
- Leaves: photosynthetic organs; blade, petiole, veins; guard cells regulate stomata for gas exchange
- Xylem carries water + minerals UP from roots (dead, hollow cells); phloem carries sugars BOTH directions (living cells) - source to sink
- Dermal, ground, and vascular tissue systems
Photosynthesis and respiration
- Overall: 6CO₂ + 6H₂O + light → C₆H₁₂O₆ + 6O₂
- Light reactions in thylakoid membrane: split water → O₂, produce ATP + NADPH
- Calvin cycle in stroma: RuBisCO fixes CO₂ into 3-carbon sugars (C₃)
- Photorespiration waste led to C₄ (bundle sheath concentration, e.g., corn) and CAM (nighttime CO₂ uptake, e.g., cacti) adaptations
- Transpiration: evaporation from leaves pulls water up (cohesion-tension); guard cells open/close stomata
Reproduction and life cycles
- Alternation of generations: gametophyte (n) alternates with sporophyte (2n)
- Bryophytes (mosses): gametophyte dominant, sperm need water to swim
- Ferns: sporophyte dominant, spores, free-swimming sperm, independent gametophyte (prothallus)
- Gymnosperms: naked seeds in cones, pollen eliminates need for water
- Angiosperms: flowers + fruit; double fertilization makes 2n zygote + 3n endosperm
- Flower parts: stamen (anther + filament), pistil/carpel (stigma, style, ovary), petals, sepals
- Pollination vectors: wind, insects, birds, water; coevolution of flowers and pollinators
Plant diversity and taxonomy
- Green algae (Charophytes): closest relatives of land plants
- Nonvascular bryophytes: mosses, liverworts, hornworts - no true xylem/phloem
- Seedless vascular: ferns, club mosses, horsetails
- Gymnosperms: conifers (pines), cycads, ginkgo, gnetophytes
- Angiosperms: monocots (one cotyledon, parallel veins, fibrous roots, scattered vascular bundles, flower parts in 3s) vs. dicots/eudicots (two cotyledons, net veins, taproot, vascular in a ring, flower parts in 4s or 5s)
Plant hormones
- Auxin: cell elongation, apical dominance, phototropism (bends toward light)
- Gibberellins: stem elongation, seed germination
- Cytokinins: cell division, delay senescence
- Ethylene: gas hormone, fruit ripening, leaf abscission
- Abscisic acid (ABA): dormancy, closes stomata under drought stress
Evolution and paleobotany
- Land plants from green algae ~450-475 mya; major innovations in order: vascular tissue → seeds → flowers
- Cooksonia: early vascular plant; Archaeopteris: early tree
- Coal forests of Carboniferous (lycopods, ferns); angiosperm radiation in Cretaceous
- Know major plant-derived fossils and what they tell us about ancient climates
Role of plants
- Primary producers: base of most food webs, oxygen production, carbon fixation
- Agriculture, medicines, materials; conservation concerns (invasives, habitat loss)
- Symbioses: mycorrhizae (fungi + roots, aid absorption), nitrogen-fixing bacteria in legume root nodules, lichens
Common mistakes
- Mixing up xylem vs. phloem direction and cell type
- Assuming algae are plants (most algae are protists; only green algae share a common ancestor with plants)
- Confusing gametophyte vs. sporophyte dominance across groups
- Putting monocot and dicot traits in the wrong columns
How SciolyPrep Helps You Practice
AI Test Generator
Generate original Botany questions at your chosen difficulty. AI-generated questions and answers can contain mistakes, so check them against reliable sources.
Real Exam Structures
Import past Botany exam PDFs, or use the Exam-Inspired Generator to get new questions modeled on real exam formats.
Progress Tracking
Scores, timing, and weak-area insights for every attempt, so you know exactly what to review before competition day.
Frequently Asked Questions About Botany
How do I practice for Botany in Science Olympiad?
Start with the current year's rules manual for Botany, then drill practice tests in increasing difficulty: Invitational, then Regional, then State and National level. SciolyPrep generates unlimited original Botany practice tests at each difficulty level, so you can target your weak areas instead of hunting for scarce past exams.
Are the practice tests free?
Yes - you get 5 free AI test generations every month, forever, no credit card needed. Paid plans unlock unlimited generations for the full season if you need more volume.
What difficulty Botany test should I start with?
Start at the Invitational or Regional level to build fundamentals, then move up to State and National difficulty as competition approaches. Regional tests mix recall with application; State and National tests add multi-step reasoning and data interpretation.
Can I practice with real past Science Olympiad exams?
Yes. You can import a past exam PDF from your computer or a Google Drive link, and the app parses every question into an interactive test. There is also an Exam-Inspired Generator that analyzes real exam structures (topic mix, format, difficulty) and writes 100% original new questions in that style.