Biochemistry Review

Identify whether each molecule is organic (O) or inorganic (I).

• C₂H₆

• C₈H₁₈O₂

• C₆H₁₂O₆

• CHON

• H₂O

Which elements are present in all organic compounds?

• Carbon (C) & Hydrogen (H)

• Oxygen (O) & Nitrogen (N)

• Sulfur (S) & Phosphorus (P)

• Helium (He) & Neon (Ne)

Tags

NGSS.HS-LS1-6

Which four elements make up over 96% of all living things?

• Hydrogen (H), Oxygen (O), Nitrogen (N), and Carbon (C)

• Helium (He), Neon (Ne), Argon (Ar), and Krypton (Kr)

• Sodium (Na), Magnesium (Mg), Aluminum (Al), and Silicon (Si)

• Iron (Fe), Copper (Cu), Zinc (Zn), and Lead (Pb)

Tags

NGSS.MS-PS1-1

Which subatomic particles are involved in chemical bonds?

• Electrons

• Protons

• Neutrons

• Quarks

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What are the characteristics of water that make it important to life?

• Water is polar, which makes it highly cohesive and adhesive. Water is a universal solvent.

• Water is non-polar and does not dissolve substances easily.

• Water has a low specific heat capacity, making it easy to change temperature.

• Water is a poor conductor of electricity.

Tags

NGSS.HS-ESS2-5

What is pH?

• A measurement of the acidity of a solution

• A type of chemical bond

• A unit of temperature

• A measure of electrical resistance

Which pH values are acidic?

• 1-6

• 7

• 8-14

Identify whether each solution is acidic.

• Vinegar

• Stomach

  Acid

• Water

• Glass Cleaner

Which substance plays a major role in most of the chemical reactions that occur in a living cell?

• Glycerol

• Water

• Glycogen

• Maltose

Tags

NGSS.HS-LS1-7

Pick the term that best fits each statement. Starch, fats, DNA, and enzymes are

• Complex, organic molecules, made from smaller organic molecules.

• Simple, inorganic molecules, made from smaller inorganic molecules.