Nucleotides:

Question 1

What is DNA made from?

Answer 1

= nucleotides

Question 2

What is the structure of a nucleotide found in DNA?

Answer 2

= 3 parts
= 5 carbon sugar molecule- pentose sugar
= attached to sugar is an organic base (made from nitrogen)
= negative charged phosphate group

Question 3

What elements do nucleotides contain?

Answer 3

= carbon
= hydrogen
= oxygen
= nitrogen
= phosphporous

Question 4

What are nucleotides used to make?

Answer 4

DNA + RNA

Question 5

In DNA what is the general notices in the structure?

Answer 5

= pentose sugar: dexoyribose
= has 1 fewer oxygen atom than ribose

Question 6

In RNA what is the general notices in the structure?

Answer 6

= pentose sugar: ribose

Question 7

What are the 4 different bases in DNA?

Answer 7

= Adenine
= Thymine
= Guanine
= cytosine

Question 8

What is a purine?

Answer 8

= Double ring structure
= Adenine + Guanine

Question 9

What are pyrimidines?

Answer 9

= Thymine + Cytosine
= single ring structures

Question 10

What 4 bases does RNA have?

Answer 10

= adenine
= guanine
= cytosine
= NO THYMINE- uracil

Question 11

What happens when two nucleotides react?

Answer 11

= form a bond between the phosphate group on one nucleotide and the OH group on the carbon 3 of the pentose sugar in a nucleotide

Question 12

What is the bond between 2 nucleotides called?

Answer 12

= phosphodiester bond
= water molecule is formed
= CONDENSATION

Question 13

How can we break the phosphodiester bond?

Answer 13

= hydrolosis
= adding water