Physiology experiments 生理 (及生物) 實驗 

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Photomicrographs of Onion and banana cells [CE]

The effect of temperature and chemicals on cell membrane permeability (beet root) [AL]

Chemical tests for common food substances [CE]

Determination of the concentration of vitamin C in fruit juices [CE] [AL]

Determination of the concentration of reducing sugars in a sample of grape juice (Jan 16, 2004) [AL]

Identify unknown chemical constituents [AL]

Natural pH indicator from purple cabbage  [S2] [CE] [AL]

Test for lignin [AL]

The enzyme menu page

Catalase (in liver cells)

Enzymes in biological washing powder [CE]

Amylase (in germinating mung bean) - the effect of temperature on enzyme activity [CE]

Amylase (in germinating mung bean) - the effect of pH on enzyme activity [CE]

Protease (milk agar as substrate) - various tissues [AL]

Protease (on milk agar) - various sources 2005 [AL]

Protease (on milk agar) - results 2007 [AL]

Protease (on milk agar) - results 2011  [CE][AL[NSS]

Protease distribution in grasshopper's intestine 2007 [AL]

Protease (Pepsin and trypsin - pH effect) on egg white blocks [CE]

Photosynthesis experiments (mixed) [CE]

The effect of light intensity on the rate of photosynthesis [CE] [AL]

The effect of quality of light on the rate of photosynthesis [CE] [AL]

The effect of carbon dioxide on the rate of photosynthesis [CE]

The need of chlorophyll for photosynthesis [CE]

Chromatographic separation of chlorophyll and accessory pigments [AL]

Measuring the rate of gas exchange in a grasshopper (Oct 2004) [CE]

Measuring oxygen consumption and carbon dioxide release from a hamster simultaneously [CE] [AL]

Measuring the metabolic rate of a hamster (by using a CO₂ sensor) [AL]

Gas exchange in plant - demo by hydrogencarbonate indicator  (Hibiscus leaf) [CE]

Guard cells and stomata (photomicrograph) [CE] [AL]

Lenticel [CE][AL][NSS]

Comparing inhaled (unbreathed) and exhaled (breathed) air [CE]

Measuring the vital capacity of human lungs [CE] [AL]

The bell jar model (to demonstrate ventilation) [CE] [AL]

The rib cage model (to demonstrate ventilation) [CE] [AL]

Comparing the metabolic rate of endotherms and ectotherms (worksheet) ; 

photographic record of the experiment (July 29, 2003); celebration of life at 18 [AL]  (Summer, 2003)

Respiration rate of yeast in relation to the molecular size of substrate and presence of activator/inhibitor [AL]

Osmosis, demo (potato strips) [CE] 

Osmosis, demo (Spring onion, red pepper) [CE]

Determination of water potential [CE]

Imbibition [CE] [AL]

Distribution of stomata on the dorsal and ventral leaf surface [CE]

Transpiration - structure of guard cells [CE] [AL]

Transpiration - demonstration of the phenomenon;   using an air-bubble potometer  [CE]

Transpiration - Cobalt chloride paper to estimate stomatal distribution [CE]

Transpiration -  a U-shaped simple potometer [AL]

Xylem vessels - models and photomicrographs [CE] [AL] [NSS]

Plant histology in relation to transport in plant [AL]

Emulsification of  oil (using pig's fresh bile) [CE]

Simulation of digestion and absorption in the intestine  [CE]

Blood cells  [CE] [AL]

Aorta  [CE] [AL]

Heart valves [CE] [AL]

Pig's heart dissection [CE] [AL]  Dissection menu [CE] [AL]

The coronary artery [CE] [AL]

Dissection of the kidneys  [CE] [AL]

Flowers [CE] [AL]

Growing mazie [CE] [AL]

Legume, sweet pea  (fruit and seed) [CE][AL]

Seedling structure (mung bean) [CE] [AL]

Seed germination (structure, conditions) [CE] [AL]

Food storage organs / vegetative propagation units [CE] [AL]

Growing Narcissus (daffodil) before the Chinese New Year [CE] [AL]

Phototropism [CE] [AL]

Etiolation [CE] [AL]

Hydrotropism and geotropism [CE] [AL]

Induction of adventitious roots by growth hormone(s) [CE] [AL]

Germinating seedling (apical meristem) [CE]

DNA fingerprinting by gel electrophoresis [AL] [All photographs on one page]

Bacterial colonies

Aseptic technique(s)

Preparation of nutrient agar plate

Serial dilution of a microbial suspension

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