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9L - Elements in the Body and Carbohydrates

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

Organic molecules always contain ...

a)

Carbon

b)

Oxygen

c)

Nitrogen

d)

Sulfur

2.

Which of these is an organic molecule?

a)

Calcium Phosphate Ca3(PO4)2

b)

Sulfur Dioxide SO2

c)

Methane CH4

d)

Sodium Chloride NaCl

3.

Calcium is an important element in building ...

a)

Bones & Teeth

b)

Skin

c)

Muscle

d)

Eyes

4.

Which of these elements is important for the thyroid gland?

a)

Carbon

b)

Iodine

c)

Sodium

d)

Phosphorus

5.

Haemoglobin in your blood uses which metal element?

a)

Carbon

b)

Nitrogen

c)

Oxygen

d)

Iron

6.

What are the elements in carbohydrates?

a)

C, H, N, O

b)

C, S, P, O

c)

C, H, O

d)

C, H, N

7.

Which of these are monosaccharides?

a)

Carbon, Hydrogen, Nitrogen

b)

Sucrose, Maltose, Lactose

c)

Glucose, fructose, galactose

d)

Starch, Glycogen, Cellulose

8.

Which of these are disaccharides?

a)

Carbon, Hydrogen, Nitrogen

b)

Sucrose, Maltose, Lactose

c)

Glucose, fructose, galactose

d)

Starch, Glycogen, Cellulose

9.

Which of these are polysaccharides?

a)

Carbon, Hydrogen, Nitrogen

b)

Sucrose, Maltose, Lactose

c)

Glucose, fructose, galactose

d)

Starch, Glycogen, Cellulose

10.

Polysaccharides are very soluble in water

a)

True

b)

False

11.

Which of these is the starting material for respiration?

a)

Starch

b)

Fructose

c)

Glucose

d)

Lactose

12.

Which sugar (saccharide) do we add to our coffee?

a)

Fructose

b)

Glucose

c)

Sucrose

d)

Starch

13.

Which sugar (saccharide) comes from milk?

a)

Starch

b)

Glucose

c)

Lactose

d)

Fructose

14.

Which of these sugars comes from fruits?

a)

Lactose

b)

Fructose

c)

Glycogen

d)

Galactose

15.

Potatoes contain which polysaccharide?

a)

Glycogen

b)

Glucose

c)

Fructose

d)

Starch

16.

We can't digest this polysaccharide, but cows can!

a)

Galactose

b)

Cellulose

c)

Starch

d)

Glucose

17.

What turns blue in the presence of starch?

a)

Milk

b)

Iodine water

c)

Saltwater

d)

Calcium water

18.

Our bodies store polysaccharides as ...

a)

Cellulose

b)

Starch

c)

Fructose

d)

Glycogen

19.

The fibre in our diet is really made of ...

a)

Sucrose

b)

Maltose

c)

Cellulose

d)

Water

20.

These saccharides have only 5 or 6 carbon atoms

a)

Monosaccharides

b)

Disaccharides

c)

Polysaccharides

d)

Cellulose