4.1 & 4.2

Which macromolecule stores energy, insulates us, and makes up the cell membrane?

• lipids
• proteins
• carbohydrates
• nucleic acids

The building blocks of carbohydrates are?

• amino acids
• fatty acids
• monosaccharides 
• nucleotides

A good example of a nucleic acid would be?

• sugar
• DNA
• fat
• glucose

What are the functions of proteins?

• build structures and provide quick energy
• repair tissue and store long-term energy
• build structures/
  hormones/ transport/ enzymes
• provide energy/ transport

Proteins are made of monomers called ___________

• Nucleotides
• Monosaccharides
• Amino Acids
• Glycerol and fatty acids

Which macromolecule is shown?
 View Figure 1 (if not visible)

• lipid
• protein
• nucleic acid
• carbohydrate

Which macromolecule is shown?
 View Figure 4 (if not visible)

• lipid
• protein
• nucleic acid
• carbohydrate

Enzymes are considered to be 

• Lipids
• Carbohydrate
• Protein
• Nucleic Acid

Enzymes are capable of increasing the rate of a chemical reaction within a living cell.  Enzymes accomplish this through which of the following means?

• reducing the number of products   
• reducing the activation energy
• increasing the temperature of the cell
• increasing the concentration of reactants 

The graph shows how enzymes affect reactions in cells. Which statement best summarizes the information shown in the graph?

• Enzymes increase the energy of the reactants.
• Enzymes decrease the energy level of the products.
• Enzyme decrease the activation energy of the reaction.
• Enzymes reverse the direction of the reaction.