Final Exam Review - Biochemistry

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

• 15^oC
• 40^oC
• 30^oC
• 35^oC

What is the optimal pH for this enzyme?

• 6

• 10

• 9

• 7

An enzyme speeds up a reaction by

• lowering the activation energy.
• raising the activation energy.
• releasing energy.
• absorbing energy.

Which color line represent a reaction with an enzyme present?

• Blue

• Red

• Both

• Neither

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.

What macromolecule is made up of C,H,O,N?

• Carbohydrates

• Lipids

• Proteins

• Nucleic acids

What is the function of Carbohydrates?

• Long-term energy

• Muscle development

• Short-term energy

• enzyme activity

Which macromolecule has amino acids as monomers?

• Carbohydrates

• Lipids

• Proteins

• Nucleic acids

This macromolecules is responsible for providing our genetic material. Choose the macromolecule that best fits.

• Carbohydrates

• Lipids

• Proteins

• Nucleic acids

Which one of our macromolecules would you consume in order to receive long-term energy?

• Carbohydrates

• Lipids

• Proteins

• Nucleic acids