Biology Unit 2 Reivew

What particle determines which element is which?

• Protons

• Neutrons

• Electrons

Why is water considered polar?

• It is a universal solvent

• It makes 4 covalent bonds

• It has a partial charge

• It is cohesive and adhesive

Why is carbon unique to organic molecules?

• It can make four bonds

• It can form rings

• It can form chains

• It can bond to itself

Which of the following elements is not found in carbohydrates?

• Carbon

• Nitrogen

• Oxygen

• Hydrogen

Which is true about a water molecule?

• The oxygen has a partially positive charge

• The hydrogen has a partially negative charge

• The oxygen has a partially negative charge

• The carbon is neutral

Tags

NGSS.HS-ESS2-5

This molecule has rings of carbon, hydrogen and oxygen.

• Lipid

• Carbohydrate

• Protein

• Nucleic Acid

This molecule is composed amino acids and peptide bonds.

• Lipid

• Carbohydrate

• Protein

• Nucleic Acid

Tags

NGSS.HS-LS1-1

The monomer of this polymer is a nucleotide

• Lipid

• Protein

• Carbohydrate

• Nucleic Acid

How do enzymes speed up chemical reactions?

• The increase the energy

• The create new atoms

• The denature the substrates

• The reduce the amount of activation energy

Where do you find amino acids?

• Nucleic Acids

• Nitrogen

• Proteins

• ATP

Tags

NGSS.HS-LS1-6