Biology 104 Virtual Laboratories

Diffusion through Membranes

Study passive movement of molecules across selectively permeable membranes using dialysis tubing.

30-45 minutes

Osmosis

Investigate water movement across cell membranes using potato cores or dialysis bags.

30-45 minutes

Enzyme Action: Testing Catalase Activity

Measure the breakdown of hydrogen peroxide by catalase enzyme from liver or potato tissue.

30-45 minutes

Mitosis & Meiosis

Study cell division stages using microscope slides of onion root tips and lily anthers.

30-45 minutes

Plant Pigment Chromatography

Separate and identify plant pigments using paper or thin-layer chromatography.

30-45 minutes

Photosynthesis

Measure oxygen production or carbon dioxide uptake in aquatic plants under different light conditions.

30-45 minutes

Cell Respiration (CO2 and O2)

Simultaneously measure oxygen consumption and carbon dioxide production in respiring organisms.

30-45 minutes

Cell Respiration (CO2)

Measure carbon dioxide production using bromothymol blue or pH indicators.

30-45 minutes

Cell Respiration (O2)

Measure oxygen consumption in respiring peas or insects using respirometers.

30-45 minutes

Cell Respiration (Pressure)

Use pressure sensors to measure respiration rates in closed systems.

30-45 minutes

pGLO™ Bacterial Transformation

Transform E. coli with GFP plasmid to study genetic engineering and gene expression.

30-45 minutes

Analysis of Precut Lambda DNA

Use restriction enzymes to digest lambda DNA and analyze fragments by gel electrophoresis.

30-45 minutes

Forensic DNA Fingerprinting

Simulate crime scene DNA analysis using restriction enzymes and agarose gel electrophoresis.

30-45 minutes

Genetics of Drosophila

Study Mendelian inheritance patterns using fruit fly crosses and phenotypic analysis.

30-45 minutes

Population Genetics and Evolution

Simulate natural selection and genetic drift using bead or simulation models.

30-45 minutes

Transpiration

Measure water loss in plants under different environmental conditions using potometers.

30-45 minutes

Blood Pressure as a Vital Sign

Measure and interpret blood pressure readings under different physiological conditions.

30-45 minutes

Heart Rate and Physical Fitness

Assess cardiovascular fitness through heart rate recovery after exercise.

30-45 minutes

Animal Behavior

Study taxis and kinesis in pill bugs or other invertebrates under different stimuli.

30-45 minutes

Dissolved Oxygen in Water

Measure oxygen levels in water samples and study factors affecting aquatic respiration.

30-45 minutes

Primary Productivity

Measure net and gross primary productivity using light and dark bottle methods.

30-45 minutes

The Visible Spectra of Plant Pigments

Use spectrophotometry to analyze absorption spectra of chlorophyll and carotenoids.

30-45 minutes

Determination of Chlorophyll in Olive Oil

Extract and quantify chlorophyll content in olive oil using spectrophotometric methods.

30-45 minutes

Enzyme Analysis using Tyrosinase

Study enzyme kinetics of tyrosinase in converting tyrosine to melanin.

30-45 minutes

Introduction to Neurotransmitters using AChE

Study acetylcholine breakdown by acetylcholinesterase and effects of inhibitors.

30-45 minutes

Macromolecules: Experiments with Protein

Test for protein presence using Biuret reagent and study protein denaturation.

30-45 minutes