Module 2 - Nucleuotides

Question 1

What is the sugar in DNA

Answer 1

Deoxyribose

Question 2

What are the base pairs in DNA

Answer 2

adenine and guanine

Cytosine and thymine

Question 3

What is a purine

Answer 3

Adenine and guanine

Question 4

What is a pyrimidine

Answer 4

Cytosine and thymine

Question 5

What is the sugar in RNA

Answer 5

Ribose

Question 6

What type of nucleotide is ADP and ATP

Answer 6

Phosphorylated Nucleotides

Question 7

How many phosphate groups does ATP contain

Answer 7

3

Question 8

What does ATP do

Answer 8

Provide energy for chemical reactions in cells

Question 9

How does ATP release energy

Answer 9

Energy is stored in the phosphate bond so when energy is needed by a cell, the ATP is broken down in to ADP + Pi and energy is released from the broken bond

Question 10

How does DNA replication occur?

Answer 10

DNA helicase breaks the bonds between the polynucleotides
DNA unzips causing two seperate stands
The new strands act as templates for free floating nucleotides
Complimentary base pairing occurs
DNA polymerase allows new strands to bond
New DNA consists of 1 old and 1 new strand of DNA