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- 1. Multiple ChoiceWhat is a substance called if it speeds up a chemical reaction?reusablecatalystspecificfragile
- 2. Multiple ChoiceWith what 3 letters do enzymes typically end?-ose-ase-ese-tic
- 3. Multiple Choice
Enzymes are an example of
Lipids
Carbohydrate
Protein
Nucleic Acid
- 4. Multiple Choice
Most chemical reactions in the body rely on enzymes. Why are enzymes are necessary for many cellular reactions?
The reactions are too slow to meet the needs of the cell if enzymes are missing
The reactions take up too much space in the cell if enzymes are missing
Enzymes change reactants from solid to liquid during the reactions.
Enzymes supply the oxygen necessary for the reactions.
- 5. Multiple Choice
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?
The body is kept relatively warm to prevent too much enzyme action.
The body needs to be warm to prevent hypothermia.
Enzymes function best at a specific temperature.
There is no connection between the two statements.
- 6. Multiple ChoiceAny substance that is acted upon by an enzyme is called a(n)?CoenzymeSubstrateVitaminPolypeptide
- 7. Multiple ChoiceWhat happens when enzymes are heated to a high temperature?The enzymes die.The shapes of the enzyme are altered denatureThe enzymes' amino acid sequence changes.The enzymes remain the same
- 8. Multiple ChoiceWhere do substrates bind on an enzyme?voltage-gated channelssurface receptorcalcium channelsactive site
- 9. Multiple Choice
Which of the following conclusions can be drawn from this graph?The optimum pH of the enzyme is 6.6.The optimum pH of the enzyme is 5.8The enzyme’s activity increases as pH increases 5.0 to 9.0The enzyme’s activity is greater around pH of 8.0 . - 10. Multiple ChoiceBased on the graph, what is the optimal temperature for this enzyme?15oC40oC30oC35oC
- 11. Fill in the Blank
The amount of energy needed for a reaction to occur is called the _________?
- 12. Multiple Choice
What does an enzyme do?
Decreases the activation energy of a reaction
Increases the activation energy of a reaction
Does not change the activation energy of a reaction
Makes the reaction last longer
- 13. Multiple Choice
How does an enzymes shape relate to its function?
the shape of the enzyme has no relation to its function
the enzyme is shaped specially for certain substrates to perform a specific reaction
the enzyme shape acts as a receptor to certain products
the enzyme shape can fit into specific substrates to cease a reaction
- 14. Multiple Choice
What's going on in this picture?
The enzyme is taking the red substrate and turning it blue
The enzyme's active site is blocked by a competitive inhibitor
The enzyme can't function if too many substrates are trying to bind
This is an example of an anabolic enzyme reaction
- 15. Multiple Choice
An activor or inhibitor binding place that is not the active site, causing the enzyme to change conformation (shape) is an example of ...
competative inhibition
allosteric control
optimum conditions
induced fit
- Answer choicesTagsAnswer choicesTags