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

Tags

NGSS.MS-PS1-1

Which of the following elements is not found in carbohydrates?

• Carbon
• Nitrogen
• Oxygen
• Hydrogen

Tags

NGSS.MS-PS1-1

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