2.1 Nucleic Acids

Question 0

Describe the structure (3 parts) of a mono-nucleotide

Answer 0

Phosphate (phosphoric acid)
|
|
Pentose sugar (5 carbon) ———- Nitrogenous Base

Question 1

What are nucleic acids?

Answer 1

The information molecules of a cell.

Take the form of DNA - deoxyribonucleic acid

Question 2

What is the name of the pentode sugar found in RNA?

Answer 2

Ribose

Question 3

What is the name of the pentode sugar in DNA and how does if differ from Ribose?

Answer 3

Called: DEOXYRIBOSE

It has one less oxygen atom

Question 4

What are the two different types of nitrogenous bases found in nucleic acids? How do they differ?

Answer 4

Purine: Have TWO nitrogenous rings

Pyrimidines: has ONE nitrogenous ring

Question 5

What are the purine bases found in RNA and DNA?

Answer 5

Adenine (A)

Guanine (G)

Question 6

What are the Pyrimidines found DNA?

Answer 6

Cytosine (C)

Thymine (T)

Question 7

What are the Pyrimidines found in RNA?

Answer 7

Cytosine

Uracil (U)

Question 8

What is the base pairing between the purines and Pyrimidines?

Answer 8

Purine. Pyrimidines
——— —————

Adenine = Thymine AT

Guanine = Cytosine GC

(In RNA CU)