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WorksheetsPlenary on Unit 5 - Enzymes
Total questions: 10
Worksheet time: 5mins
A catalyst is a chemical that
blocks a chemical reaction from occurring
speeds up the rate of a chemical reaction
slows down a chemical reaction
has no effect on a chemical reaction
2. Object C in this image is know as the ________
enzyme
substrate
enzyme-substrate complex
product
3. The chemical an enzyme reacts with is known as the
reactant
substrate
product
enzyme
4. Enzymes are
Nucleic acids
Lipids
Proteins
Carbohydrates
5. 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.
Enzymes reverse the direction of the reaction.
Enzyme decrease the activation energy of the reaction.
6. At high temperatures, the rate of enzyme action decreases because the increased heat......
neutralizes the acids and bases in the system
increases the concentration of the enzyme
alters the shape of the active site of the enzyme
changes the pH of the system
7. Both enzymes will have the same amount of activity at 40 degrees Celsius?
True
False
8. After the enzyme and substrate bind together and perform the reaction, what does the substrate become?
a substrate
a product
an enzyme
an active site
9. How does an enzymes shape relate to its function?
the shape of the enzyme has no relation to its function
the enzyme shape acts as a receptor to certain products
the enzyme is shaped specially for certain substrates to perform a specific reaction
the enzyme shape can fit into specific substrates to cease a reaction
10. Enzymes will make a reaction go _______ and use ______ energy.
faster, less
slower, less
faster, more
slower, more
