Definitions

Question 1

nucleotide

Answer 1

a molecule with a 5-carbon pentose sugar, nitrogen-containing base and a phosphate group, joined by a condensation reaction

Question 2

ATP

Answer 2

a nucleotide that acts as a universal energy supply molecule . It is made up of an adenine base, the pentose sugar ribose, and 3 phosphate groups

Question 3

Purine base

Answer 3

a base found in nucleotides that has 2 nitrogen-containing rings

Question 4

Pyrimidine base

Answer 4

a base found in nucleotides that has 1 nitrogen-containing rings

Question 5

Adenine

Answer 5

a purine base found in DNA & RNA

Question 6

Guanine

Answer 6

a purine base found in DNA & RNA

Question 7

Cytosine

Answer 7

a pyrimidine base found in DNA & RNA

Question 8

Thymine

Answer 8

a pyrimidine base found in DNA

Question 9

Uracil

Answer 9

a pyrimidine base found in RNA

Question 10

ATPase

Answer 10

an enzyme that catalyses the formation and breakdown of ATP, depending on conditions

Question 11

ADP

Answer 11

a nucleotide formed when ATP loses a phosphate group and provides energy to drive reactions

Question 12

redox reactions

Answer 12

a reaction in which a reactant loses electrons (oxidises) and another gains electrons (reduces)