Testing For Starch
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Name the reagent used to test for starch
Iodine
What color change will be observed when Starch is present : Starch is absent :
Blue black Red brown
Name the reagent used to test for sugar
Benedicts solution
What color change will be observed when Sugar is present : Sugar is absent :
Orange Blue
During a sugar test, the test tube is placed in boiling water. Explain why. (3)
Heat is the catalyst that speed up the rate of the chemical reaction.
Name the color pattern of most sugar levels to least (5)
Red Orange Yellow Green Blue, (no sugar )
What is the deposit at the bottom of the test tube called after the reducing sugar test? (1)
Precipitation
What is the device called used to prepare food? (2)
Motor and pestle
What is this device used for? (2)
Crash solids into finer pieces, increasing surface area.
What is a diet?
Include all the food we eat every day
What is a balanced diet? (2)
Eating food from all food groups, correct amounts every day
List of food groups, and the correct amounts. (10)
Fats and oils - (1-2) Milk products - (2-3) Fruit and vegetables - (3-5) Bread and starch - (6-11) Water - (6-8)
What characteristics influence the amount of food included in the balance diet of a person?
Size, age, sex, pregnant, health, breast-feeding, how active person is
What does it mean to eat more than you need per day? (3)
Taking in more food than your body requires based on your activity of physical state
What could be the consequences for your body when we eat too much food every day? (6)
• Extra food is converted into fat • Fat is stored • Body increases in size • Harder on the knees and joints • Heart works harder • Cardiovascular disease