4.1 Biological Molecules

Question 1

What elements make up sugars?

Answer 1

carbon, oxygen and hydrogen

Question 2

Which element is found in proteins but NOT in carbohydrates? carbon or hydrogen or nitrogen or oxygen

Answer 2

Nitrogen

Question 3

The bases in DNA pair complementary. The base pairing rule reads …..

Answer 3

A to T (& vice versa)

G to C (& vice versa)

Question 4

What type of molecules are enzymes and antibodies?

Answer 4

Protein

Question 5

What are the basic units of fats and oils?

Answer 5

Glycerol and fatty acids are the basic units

Question 6

Enzymes have unique areas called ………………….., antibodies have special regions called ……………………..

Answer 6

active sites, antigen binding sites

Question 7

The bases in DNA are

Answer 7

A, T, G and C

Question 8

What causes the structures of different protein molecules to be unique?

Answer 8

Their amino acid sequence

Question 9

Water’s tendency to dissolve a wide range of compounds and together form a solution makes it an important ………………….

Answer 9

Solvent

Question 10

Water’s role is breaking the bond in large complex molecules to form smaller molecules features in the process of ………………………..
A. excretion B. transport C. digestion

Answer 10

Digestion