Unit One: Chemical Reactions. Lesson two: the speed of chemical reactions.Keywords (English): enzymes – reaction rate – catalysts – biochemistry

Objective of the experiment:fat detectionExperiment tools:Vegetable oil - Skimmed milk - Whole milk - Sudan III solution - Test tubesExperiment steps: - Put 2 ml of milk into test tubes.- Add 5 ml of water into a test tube and then put 2 ml of oil.- Add 10 drops of Sudan III solution to th......

Keywords: Polysaccharides – Starches – Iodine – Food

Detection of monosaccharides and disaccharides

the goal:Revealing how photosynthesis and cellular respiration work together in an ecosystem.Materials and tools:Bromothymol blue (BTB) solution - Glass beaker - Test tubes - Aluminum foil - Aquatic plant.Steps:1- Add a quantity of bromothymol blue (BTB) solution to a glass beaker using a pipette.2-......

Objective: To detect the presence of proteins in a sample using the Biuret reagentMaterials: Test tubes _ Test tube rack _ Egg white _ Glucose solution _ Starch solution _ Distilled water _ Biuret reagent _ DropperSteps: Prepare 4 test tubes and place in each one: egg white, glucose, starch, or dist......

Keywords: Anaerobic respiration – Alcoholic fermentation – Carbon dioxide – Yeast – Sugar

Fat Digestion Investigationfat digestion – lipase – bile – emulsification – digestive system

Keywords: Vitamin C – Ascorbic acid – Detection – Iodine solutions

Keywords: Amylase enzyme – Temperature – Digestion – Starch – Enzyme activity

Keywords: pH – Enzyme activity – Reaction – Digestion

Keywords: Pepsin enzyme – Protein digestion – Stomach – Gastric juice – Digestive enzymes

Objective: To prove that chemical digestion of starch begins in the mouth with the help of amylase enzyme present in saliva.Materials: Bread – Iodine solution – Two plates – Dropper – Spoon.Steps: Place a small piece of bread on the first plate and add a drop of iodine solution. Place a small piece......

Chewing gum analysisKeywords (English): chewing gum – composition – analysis – sugars

Keywords: Large intestine – Water absorption – Waste excretion – Beneficial bacteria