LABAlien Evolution Lab
Species that share a recent common ancestor also share inherited traits, so biologists can reconstruct…
Topic
Virtual Labs
Virtual labs let students run experiments that would be too slow, costly, or hazardous for a classroom, from PCR and gel electrophoresis to ELISA assays. Students design procedures, collect data, and interpret results using the same reasoning a bench scientist applies.
23 interactives
LAB
LABAquarium Simulator
An aquatic ecosystem depends on a balance between producers, consumers and the nutrients cycling among…
LABBed Bug Treatment Lab
When a pesticide kills most of a population, the few individuals carrying a resistance allele survive…
LABBlood Sugar Regulation App
Blood glucose has to stay within a narrow range, and the pancreas keeps it there by releasing insulin…
LABCash Crop
Plants only grow as well as their conditions allow, and inside a sealed container every one of those…
LABCell Cycle Simulator
Cells grow and divide through the cell cycle, a repeating sequence of growth, DNA replication and…
LABCell Diffusion Explorer
Cells stay alive by controlling what crosses the membrane. Some molecules drift down a concentration…
LABELISA Virtual Laboratory
An ELISA uses the precise fit between an antibody and its antigen to detect tiny amounts of a substance…
LABEnvironmental Effects on Phenotype Lab
A genotype does not fix a phenotype on its own. Identical genes can produce very different traits…
LABEnzyme Environment Explorer
An enzyme is a protein whose folded shape forms an active site that fits a particular substrate, so…
LABEnzyme Lock and Key Interactive
Enzymes are proteins that speed up the chemical reactions life depends on, and each one only acts on a…
LABForest Ecosystem Simulation
A forest is a community of populations whose numbers are held in check by the resources around them and…
LABFounder’s Effect Simulator
When a few individuals start a new population, they carry only a small sample of the original gene pool,…
LABIVF Simulator
In vitro fertilization brings egg and sperm together outside the body, then supports the resulting…
LABMembrane Explorer
A cell membrane lets some substances through and holds others back, which is how a cell keeps its…
LABOcean Acidification Simulator
As the ocean absorbs carbon dioxide from the atmosphere, the water grows more acidic and less carbonate…
LABOsmosis Simulator
Water crosses a semipermeable membrane from where solutes are dilute toward where they are concentrated,…
LABReproductive Isolation Simulator
A new species forms when two populations stop interbreeding and their gene pools drift apart. The…
LABVirtual Gel Electrophoresis
Gel electrophoresis separates DNA fragments and proteins by pulling them through a gel with an electric…
LABVirtual PCR
PCR copies a chosen stretch of DNA millions of times, which is how a lab gets enough material to test…
LABVirtual Restriction Digest
Restriction enzymes cut DNA wherever a specific short sequence appears, which lets biologists break a…
LABWater Potential Calculator
Water moves into and out of plant cells by osmosis, always travelling from higher to lower water…
LABYeast Respiration Lab
Cells release energy from sugar by respiration, but when oxygen runs short yeast switches to…