Nucleic Acids 2

Question 1

Nucleotide Function

Answer 1

Building blocks for DNA and RNA
Intracellular source of energy
Second messengers
Intracellular signaling switches

Question 2

what makes a nucleoside a
nucleotide

Answer 2

Phosphate groups

Question 3

essential for nucleotide
polymerization

Answer 3

Phosphate groups

Question 4

= one nucleotide

Answer 4

One phosphate + one sugar + one base

Question 5

the building blocks of DNA

Answer 5

Nucleotides

Question 6

each strand of DNA is a string of

Answer 6

nucleotides

Question 7

the major energy source for cellular activity

Answer 7

ATP

Question 8

contains two pyridine-like nitrogens in a
six-membered aromatic ring. ONE RING

Answer 8

Pyrimidine

Question 9

has 4 N’s in a fused-ring structure. 2 RINGS

Answer 9

Purine

Question 10

Nucleotide Structure
Bases - Purines

Answer 10

Adenine
Guanine

Question 11

Nucleotide Structure - 3
Bases - Pyrimidines

Answer 11

Thymine (DNA)
Cytosine
Uracil (RNA)

Question 12

are structurally similar

Answer 12

Uracil and Thymine

Question 13

Nucleosides are named by changing the nitrogen base ending to ______ for purines

Answer 13

-osine

Question 14

Nucleosides are named by changing the nitrogen base ending to _______ for pyrimidines

Answer 14

–idine