Chemistry of Life

DNA and RNA are examples of...

• proteins
• nucleic acids
• carbohydrates
• lipids

What is the function of nucleic acids?

• Stores energy
• Stores genetic information
• Movement
• Physical structure

Phospholipids are used in what biological structure?

• RNA
• DNA
• Cell membrane
• Cell wall

These molecules are examples of _________.

• amino acids
• triglycerides
• monosaccharides
• lipids

How many protons does the element have if the atomic number is 19 and the atomic mass is 40?

• 40
• 19
• 21
• 59

The _________ of an element equals the number of protons in an atom of that element

• mass number
• atomic weight
• atomic number
• isotopes

The __________ of an atom is the sum of the protons and neutrons in the nucleus of that atom.

• mass number
• atomic number 
• atomic category
• isotope weight

A(n) _______ is a substance with a pH greater than 7.

• Base
• Acid
• Buffer
• Water

A(n) ______ is a substance with a pH less than 7

• Acid
• Alkaline
• Base
• Buffer

Which solution releases H+ in solution?

• Base
• Acid
• Buffer
• Water