The bond that holds the sugar and the phosphate together are STRONG bonds called:

• Hydrogen Bonds
• Nitrogen Bonds
• Carbon Bonds
• Phosphodiester Bonds

A nucleotide is made of 

• A nitrogen,a ribose sugar, and protein. 
• A phosphate, a deoxyribose sugar, and a carbon base.
• Adenine, guanine, cytosine, and  thymine.
• A phosphate, deoxyribose sugar, and a nitrogen base.

The two ring nucleotides are called:

• Thymine and Cytosine
• Adenine and Thymine
• Thymine and Guanine
• Adenine and Guanine 

Identify the correct Purine nitrogen bases.

• Thymine and Cytosine
• Adenine and Guanine
• Adenine and Thymine
• Guanine and Cytosine 

Identify the correct Pyrimidine nitrogen bases.

• Adenine and Guanine
• Thymine and Guanine
• Thymine and Cytosine
• Adenine and Cytosine 

A substance that cannot be broken down into simpler substances 

• element
• molecule
• proton
• carbohydrate

A particle that has a positive charge 

• proton
• electron
• neutron
• quark

The smallest particle of matter that contains the characteristics of an element

• atom
• molecule
• macromolecule
• quark

A particle that has 0 charge or neutral charge

• proton
• electron
• neutron
• quark

A negatively charged particle

• proton
• electron
• neutron
• quark