Showing 10 of 10 Biology & Life Science Experiments
Temporary Mount of Onion Peel Epidermal Cells
Prepare a temporary stained mount of onion bulb epidermal peel and observe the structural organization of plant cells (cell wall, nucleus, cytoplasm, and vacuole) under a compound microscope.
Mitosis in Onion Root Tip Cells via Squash Method
Prepare temporary root tip squashes of Allium cepa to study and identify distinct stages of mitotic cell division (prophase, metaphase, anaphase, telophase).
Demonstration of Osmosis using Potato Osmoscope
Demonstrate endosmosis through living plant tissue using a potato tuber osmoscope containing concentrated sucrose solution placed in water.
Measurement of Transpiration Rate using Ganong's Potometer
Measure the rate of water absorption and transpiration in a leafy shoot using Ganong's Potometer under varying environmental conditions (still air, fan wind, bright sunlight).
Carbon Dioxide Release during Cellular Respiration in Seeds
Demonstrate that germinating gram/pea seeds release carbon dioxide (CO2) during aerobic respiration using an airtight conical flask with potassium hydroxide (KOH).
Light & Starch Test for Photosynthesis in Variegated Leaves
Demonstrate that sunlight and chlorophyll are essential for photosynthesis using a destarched variegated Croton/Coleus leaf and the iodine-starch test.
Isolation of Genomic DNA from Plant Material (Banana/Papaya)
Extract and isolate genomic DNA from ripe banana or papaya fruit tissue through mechanical disruption, detergent cell lysis, protein digestion, and ice-cold ethanol spooling.
Identification of Human Blood Cells in Peripheral Smear
Prepare and stain a thin peripheral blood film using Leishman's stain to identify erythrocytes, platelets, and differential leukocytes (Neutrophils, Lymphocytes, Monocytes, Eosinophils, Basophils).
Enzyme Kinetics: Action of Salivary Amylase on Starch
Investigate the digestive enzymatic action of human salivary amylase (ptyalin) on starch and determine the achromic point (time required for complete hydrolysis) at 37°C.
Distribution and Density of Stomata on Leaf Surfaces
Compare the distribution, frequency, and density of stomata on the upper (adaxial) and lower (abaxial) epidermis of a dorsiventral leaf (Hibiscus / Petunia) and an isobilateral leaf (Grass / Maize).
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