Unit 2 MU Test Review

An ionic bond forms when atoms ___________ electrons.

• gain
• share
• increase
• transfer

Chemical bonds form when atoms

• combined nuclei
• give up neutrons
• gain protons
• share or transfer electrons

If an atom loses two electrons what charge will it have?

• + 2
•  - 2
• +1
• -1

Covalent compounds

• Share electrons
• transfer electrons
• contain a sea of electrons
• conduct electricity

The monomer, or building blocks, of proteins

• Lipids

• Saccharides

• Nucleotides

• Amino acids

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

The monomer, or building block, of DNA and RNA

• Amino acid

• Saccharides

• Nucleotides

• Fatty acids

Fats and oils are an example of

• lipids

• proteins

• carbohydrates

Sugar is an example of

• a carbohydrate

• a lipid

• a protein

Organic compounds are always based on what element?

• hydrogen
• water
• carbon
• arsenic

Tags

NGSS.HS-LS1-6

A pure substance that cannot be broken down into simpler substances.

• element
• compound
• molecule
• carbon dioxide