Plant Cell Structure
Explore the cell wall, chloroplasts and central vacuole that make plant cells unique.
~12 min
10 topics · 10 live
Botany and Plant Science
Look inside plant cells, dissect a flowering plant, measure transpiration and germinate seeds. Then sort plants from mosses to flowers, pollinate a 3D flower, tune plant hormones, help plants survive harsh habitats and defend them against microbes and insects.
Topics in Botany and Plant Science
Plant Anatomy
Investigate roots, stems, leaves and flowers and the job each one does.
~12 min
Transpiration
Change humidity, wind, light and temperature and measure water loss from leaves.
~15 min
Seed Germination
Control water, temperature and oxygen and see which seeds sprout.
~12 min
Plant Growth and Tropisms
Move the light source and tilt the pot to see how plants respond to light and gravity.
~12 min
Plant Adaptations and Environmental Survival
Grow cacti, water lilies, mangroves, flytraps and more side by side, change the conditions and see which adaptations keep each plant alive.
~15 min
Plant Diversity and Life Cycles
Sort mosses, ferns, conifers and flowering plants on an evolutionary tree, step through their life cycles and see why some need water to reproduce.
~15 min
Plant Reproduction: Pollination and Fertilisation
Take apart a 3D flower, carry pollen by hand, bee or wind, compare self- and cross-pollination, and follow the pollen tube to double fertilisation, seed and fruit.
~15 min
Plant Hormones and Growth Regulation
Turn auxin, gibberellin, cytokinin, ABA and ethylene up or down, cut off a shoot tip, add drought, and watch growth, stomata, ripening and tissue culture respond.
~20 min
Plant Defense and Plant–Pathogen Interactions
Inspect thorns, spines and trichomes on a 3D plant, infect a leaf to follow PTI, ETI, the hypersensitive response and SAR, and watch a plant fight off caterpillars.
~20 min