Testing For Starch Flashcards

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1
Q

Name the reagent used to test for starch

A

Iodine

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2
Q

What color change will be observed when

Starch is present :
Starch is absent :

A

Blue black
Red brown

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3
Q

Name the reagent used to test for sugar

A

Benedicts solution

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4
Q

What color change will be observed when

Sugar is present :
Sugar is absent :

A

Orange
Blue

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5
Q

During a sugar test, the test tube is placed in boiling water. Explain why. (3)

A

Heat is the catalyst that speed up the rate of the chemical reaction.

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6
Q

Name the color pattern of most sugar levels to least (5)

A

Red
Orange
Yellow
Green
Blue, (no sugar )

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7
Q

What is the deposit at the bottom of the test tube called after the reducing sugar test? (1)

A

Precipitation

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8
Q

What is the device called used to prepare food? (2)

A

Motor and pestle

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9
Q

What is this device used for? (2)

A

Crash solids into finer pieces, increasing surface area.

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10
Q

What is a diet?

A

Include all the food we eat every day

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11
Q

What is a balanced diet? (2)

A

Eating food from all food groups, correct amounts every day

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12
Q

List of food groups, and the correct amounts. (10)

A

Fats and oils - (1-2)
Milk products - (2-3)
Fruit and vegetables - (3-5)
Bread and starch - (6-11)
Water - (6-8)

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13
Q

What characteristics influence the amount of food included in the balance diet of a person?

A

Size, age, sex, pregnant, health, breast-feeding, how active person is

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14
Q

What does it mean to eat more than you need per day? (3)

A

Taking in more food than your body requires based on your activity of physical state

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15
Q

What could be the consequences for your body when we eat too much food every day? (6)

A
  • Extra food is converted into fat
  • Fat is stored
  • Body increases in size
  • Harder on the knees and joints
  • Heart works harder
  • Cardiovascular disease
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