Catalase Activity

What is the primary role of enzymes inside of living cells? 

• organizing the translation of proteins
• allowing cells to be motile
• absorbing ultraviolet rays
• speeding up chemical reactions 

Based on their role in the cell, enzymes can also be classified as –

• inhibitors
• catalysts
•  hormones
• vitamins

Enzymes are a form of which biomolecule? 

• carbohydrates
• proteins
• nucleic acids
• lipids

Enzymes are composed of which of the following monomers? 

• amino acids
• acyl groups
• nucleotides
• monosaccharides

Tags

NGSS.HS-LS1-6

The enzyme catalase speeds up the chemical reaction that changes hydrogen peroxide into oxygen and water. The amount of oxygen given off is an indication of the rate of the reaction. Based on the graph, what can you conclude?

• Reaction rate decreases with increasing enzyme concentration.
• Reaction rate increases with decreasing enzyme concentration.
• Reaction rate increases with increasing enzyme concentration.
• The variables are indirectly proportional.

Tags

NGSS.HS-PS1-5

Which of the factors does NOT affect enzymatic activity?

• Temperature
• pH
• Concentration
• Color

Tags

NGSS.HS-PS1-5

What is the substrate in this enzyme substrate reaction?

• hydrogen (H2)

• hydrogen peroxide (H₂O₂)

• water (H₂O)

• catalase

• oxygen (O₂)

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-5

The independent variable is what is altered in an experiment. What is the independent variable we are tested?

• different enzyme concentrations

• change the temperature

• different concentrations of hydrogen peroxide

• changing the temperature

Tags

NGSS.HS-PS1-5

What is the name of the enzyme that speeds up the reaction in this lab

• catalase

• catalyst

• potato

• hydrogen peroxide (H₂O₂)

What was the substrate in our enzyme lab?

• Hydrogen peroxide
• Catalase
• Yeast
• Oxygen gas