Enzymes (myp 5)

Which of the following are large, insoluble molecules?

• glucose

• starch

• amino acids

• glycerol

Which of the following are small, soluble molecules?

• amino acids

• proteins

• starch

• fatty acids

• glycogen

Pepsin is produced where in the digestive system?

• mouth

• stomach

• pancreas

• small intestone

Letter D...

• active site
• enzyme
• substrate
• products

The ..................... of the active site depends on the temperature.

• shape

• substrate

• lock

• collision

Which sentence is false?

• Enzymes are proteins

• Enzymes are universal (not specific)

• Enzymes are biological catalysts

• Enzymes are affected by pH and temperature

Enzymes speed up reaction rates by changing...

• Activation Energy
• pH
• Hydrogen Bonds
• Kinetic Energy

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

• 15^oC
• 40^oC
• 30^oC
• 35^oC

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.

Letter E...

• active site

• products

• substrate

• enzyme