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Food Sciene KS3

Total questions: 40

Worksheet time: 36mins

Name
Class
Date
1.
Which nutrient helps rebuild and repair muscles?
a)
Dairy
b)
Sodium
c)
Carbohydrates
d)
Protein
2.
Which nutrient insulates the body against the cold and protects internal organs?
a)
Proteins
b)
Fats
c)
Minerals
d)
Nutrients
3.
Which nutrient helps control body functions such as digestion, metabolism, and wound healing?
a)
Vitamins
b)
Minerals
c)
Water
d)
Vegetables
4.
Which nutrient contributes to water balance, metabolism, and muscle function?
a)
Protein
b)
Minerals
c)
Water
d)
Vitamins
5.
The purpose of carbohydrates is:
a)
to provide a layer of insulation for protection.
b)
to boost the immune system and fight off infection.
c)
to provide the body with energy.
d)
to help us get a good night's rest.
6.
How does calcium help our body?
a)
Builds muscle
b)
Helps eyesight
c)
Develops red blood cells
d)
Builds strong bones
7.
Fish, nuts, oils and avocado are healthy sources of....
a)
Fiber
b)
Protein
c)
Minerals
d)
Fat
8.
When you don't drink enough water you can become:
a)
silly
b)
hyper
c)
intoxicated 
d)
dehydrated 
9.
This nutrient makes up 75% of your body:
a)
water
b)
vitamin A
c)
carbohydrates 
d)
protein 
10.
a)

Protein

b)

Dairy

c)

Carbohydrates

d)

Fruit and Vegetables

11.
a)

Fruit

b)

Vegetables

c)

Carbohydrates

d)

Dairy

12.
a)

Protein

b)

Carbohydrates

c)

Fats and Sugars

d)

Dairy

13.
a)

Fats

b)

Protein

c)

Carbohydrate

d)

Dairy

14.

Which of these are food groups in a balanced diet?

a)

Protein

b)

Carbohydrate

c)

Dairy

d)

Lipids / Fats

e)

Vitamins and Minerals

15.

Carbohydrates are needed for ...

a)

Growth and Repair

b)

Energy

c)

Hydration

d)

Insulation

16.

Proteins are needed for ...

a)

Growth and Repair

b)

Energy

c)

Hydration

d)

Insulation

17.

Lipids are needed for ...

a)

Growth and Repair

b)

Energy

c)

Hydration

d)

Insulation

e)

Protect Organs

18.

Why do we need fibre in our diet?

a)

Growth and Repair

b)

To prevent constipation

c)

Insulation

19.

Bread is high in

a)

lipids / fats

b)

protein

c)

carbohydrate

d)

water

20.

Butter is high in

a)

lipids / fats

b)

protein

c)

carbohydrate

d)

water

21.

Which of the following tests for starch?

a)

Iodine

b)

Benedict's

c)

Biuret

d)

Emulsion

22.

Which of the following tests for protein?

a)

Iodine

b)

Benedicts

c)

Biuret

d)

Emulsion

23.

Which of the following tests for glucose?

a)

Iodine

b)

Benedicts

c)

Biuret

d)

Emulsion

24.

When starch is present iodine turns...

a)

purple

b)

blue-black

c)

orange

d)

brick red

25.

When protein is present Biuret turns...

a)

purple

b)

blue-black

c)

orange

d)

brick red

26.
When large amounts of glucose is present Benedicts turns...
a)
purple
b)
blue-black
c)
brick-red
d)
green
27.

A negative test for starch will cause Iodine to stay...

a)

orange/red

b)

blue

c)

black

d)

brick red

28.

A negative test for protein will cause Biuret to stay...

a)

brick red

b)

blue

c)

black

d)

orange

29.

A negative test for glucose will cause Benedicts to stay...

a)

brick red

b)

blue

c)

black

d)

orange

30.

In this experiment, you must put your test tubes into a hot water bath

a)

Benedict's Test

b)

Biurets Test

c)

Iodine Test

d)

Ethanol Emulsion Test

31.

This photo represents a

a)

negative test for glucose

b)

negative test for protein

c)

positive test for starch

d)

positive test for glucose

32.

The test tubes in the photo represent a negative and positive result for

a)

Benedict's with glucose

b)

Biuret with protein

c)

Iodine with starch

d)

Ethanol with fat

33.
Which biomolecule does Benedict's solution test for?
a)
simple carbohydrate (monosaccharides)
b)
complex carbohydrates (polysaccharides)
c)
proteins
d)
lipids
34.
Which biomolecule is this lab testing for?
a)
simple carbohydrate (monosaccharide)
b)
complex carbohydrate (polysaccharide)
c)
protein
d)
lipid
35.
Tara conducted several tests on a mystery solution.  Her results were as follows:
*Biuret's = purplish/violet; *Benedict's = orange;  *Sudan III = yellow; *Iodine = black.
Which biomolecules were present in the mystery solution?
a)
protein & carbohydrate
b)
protein & lipid
c)
carbohydrate & lipid
d)
protein, carbohydrate, & lipid
36.

This is a positive result for .....

a)

protein

b)

bread

c)

fats / lipids

d)

the carbohydrate, starch

37.

If you drop iodine solution on bread, it changes to Black. What does this show?

a)

Bread contains protein

b)

Bread contains sugar

c)

Bread contains starch

d)

Bread contains lipids?

38.

A reagent is.....

a)

a substance you add in chemical analysis

b)

the products of a chemical reaction

c)

the chemical that you end up with at he end

d)

a food test

39.

What does this hazard symbol represent

a)

Flammable

b)

Toxic

c)

Hazardous

d)

Corrosive

40.

what does this safety symbol mean?

a)

irritant

b)

impossible

c)

impractical

d)

can only be used by people with names starting with I

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