DCP1 Review Qz

Many plants have waxy coatings on some surfaces. This coating reduces water loss because it is not water-permeable. This waxy coating is which of the following types of organic molecule?

• Carbohydrate

• Lipid

• Nucleic Acid

• Protein

Line B in the given graph represents the reaction with an enzyme added to substrates. How did the enzyme affect the reaction?

• Increased the activation energy

• Increase the energy change

• Lowered the energy change

• Lowered the activation energy

NUCLEOTIDES ARE THE BUILDING BLOCKS OF...

• CARBOHYDRATES

• LIPIDS

• NUCLEIC ACIDS

• PROTEINS

At high temperatures enzyme activity declines because of:

• Denaturation
• Decreased Kinetic Motion
• Increased H-Bonding
• Dissociation of Ionic Compounds

Which biomolecule is also known as enzymes?

• Carbohydrate
• Lipid
• Nucleic Acid
• Protein

Which biomolecule is helpful for long term energy storage?

• Nucleic acid

• Protein

• Carbohydrate

• Lipid

What is a substance called if it speeds up a chemical reaction?

• reusable
• catalyst
• specific
• fragile

Based on the graph, what is the optimal temperature for this enzyme? 

• 15^oC
• 40^oC
• 30^oC
• 35^oC

What is the function of an enzyme?

• enzymes break themselves into small pieces
• enzymes slow down chemical reactions
• enzymes speed up chemical reactions
• enzymes combine products to form reactants 

Plants and animal cells are examples of ___ cells 

• prokaryotic cells 
• eukaryotic cells