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IGCSE biomolecules (pre food tests)

Total questions: 15

Worksheet time: 5mins

Name
Class
Date
1.

Which elements are common to ALL biomolecules? (select ALL that apply!)

a)

Carbon

b)

Hydrogen

c)

Oxygen

d)

Nitrogen

e)

Sulphur

2.

Which elements may be present in proteins, but not in carbohydrates and fats? (select ALL that apply!)

a)

Carbon

b)

Hydrogen

c)

Oxygen

d)

Sulphur

e)

Nitrogen

3.

Large, complex, carbohydrates are made of simple molecules known as...

a)

glycerol

b)

amino acids

c)

fatty acids

d)

sugars

4.

Large protein molecules are made of small subunits called...

a)

glucose

b)

fatty acids

c)

glycerol

d)

amino acids

5.

What elements are amino acids made from?

a)

CHO

b)

CHON

c)

CHONP

d)

Something else

6.

What elements are glycerol and fatty acids made from?

a)

CHO

b)

CHON

c)

CHONP

d)

Something else

7.

Lipid molecules are made of smaller molecules called...

a)

Glucose and amino acids

b)

Glycerol and fatty acids

c)

Glucose and fatty acids

d)

Glycogen and fatty acids

8.

Simple sugars contain which elements?

a)

CHO

b)

CHON

c)

CHONP

d)

Something else

9.

Cellulose is a complex carbohydrate made of glucose monomers. In which part of a cell would you find it?

a)

Cell membrane

b)

Nucleus

c)

Cell wall

d)

Chloroplast

10.

If polymer is the general word for large molecules made up of smaller pieces, what word is the general term used for the smaller pieces?

a)

monomer

b)

solomer

c)

minimer

d)

micromer

11.

A molecule made of lots of amino acids joined together would be a...

a)

Protein

b)

Starch

c)

Lipid

d)

Glycogen

12.

Which of these are examples of cmplex carbohydrates made from glucose? (select ALL that apply!)

a)

starch

b)

cellulose

c)

glycogen

d)

antibody

e)

enzyme

13.

The cell membrane is made of large molecules called phospholipids. Which smaller molecules would you expect these phospholipids to be made from (select ALL that apply!)

a)

Glycerol

b)

Fatty acids

c)

Amino acids

d)

Glucose

14.

Which of these are functions of proteins in the body? (select ALL that apply!)

a)

Structure (e.g. hair and nails)

b)

Enzymes to catalyse chemical reactions

c)

Antibodies to help fight infections

d)

Energy storage

e)

Insulation

15.

Which cellular process releases the energy from food molecules so it can be used for metabolism?

a)

Nutrition

b)

Digestion

c)

Respiration

d)

Excretion

e)

Photosynthesis