ENZYMES JEDI TRAINING

What is a catalyst?

• Process that changes one set of chemicals into another
• Element or compound that enters into a chemical reaction
• Element or compound produced by a chemical reaction
• Substance that speeds up the rate of the chemical reaction

Tags

NGSS.HS-PS1-5

Which of the following decreases the activation energy necessary to initiate the chemical change within the body?

• nucleotides
• enzymes
• amino acids
• fatty acids

The human body maintains a temperature of around 98.6 degrees at all times. Enzymes are involved in almost every chemical reaction in the body. Which of the following describes the connection between these two statements? 

• Enzymes function best at a specific temperature.
• The body needs to be warm to prevent hypothermia.
  
• The body is kept relatively warm to prevent too much enzyme action. 
• There is no connection between the two statements. 

Tags

NGSS.HS-LS1-3

What is it called when a protein loses its shape?

• Denaturation

• Unfolding

• Coiling

• Inactivation

Which of these is NOT true.

• Enzymes can denature (change shape) when the temperature gets too high.
• Enzymes can only be used once in a chemical reaction. 
• Enzymes can denature when the pH changes. 
• Enzymes speed up chemical reactions. 

Which of these do NOT affect enzyme activity?

• Temperature
• pH
• Competitive Inhibitors
• Carbohydrates

Enzymes need certain environmental conditions in order to function properly.  What happens when enzymes are heated to a high temperature?

• they die
• they denature
• they change their amino acid sequence
• they work better

How do enzymes work?

• Slow down chemical reactions
• Prevent chemical reactions from working
• increase the activation energy
• speed up the chemical reaction

Tags

NGSS.HS-LS1-7

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.

Tags

NGSS.HS-PS1-5

Based on the graph, what temperature does this enzyme work best? 

• 15 C
• 40 C
• 30 C