Chemical Reactions And Enzymes
13 Questions
| Total Attempts: 1257
Questions and Answers
- 1.The element or compounds that that enter into a chemical reaction are...
- A.
Reactant
- B.
Product
- C.
Substrate
- 2.Chemical reactions are important to help the body maintain ___________
- A.
Energy changes
- B.
Homeostasis
- C.
Respiration
- 3.The reactants of enzyme-catalysed reactions are called
- A.
Substrates
- B.
Natural catalysts
- C.
Enzymes
- 4.Substrates bind to _______ enzymes
- A.
Specific
- B.
Big
- C.
Small
- 5.EXAMPLE:a chemical reaction in your body that is important is when it enables your bloodstream to remove __________ from your body.
- A.
Carbon dioxide
- B.
Carbon monoxide
- C.
Chocolate
- 6.When chemical bonds are formed or broken during chemical reactions, energy is _______ or __________.
- A.
Created or dissolved
- B.
Released or absorbed
- C.
Reversed or effected
- 7.Chemical reactions that absorb energy often occur spontaneously
- A.
True
- B.
False
- 8.Every organism must have a source of energy to carry out the chemical reactions it needs to stay alive.
- A.
True
- B.
False
- 9.This is all true about Enzymes:Enzymes:-proteins-biological catalysts-slow down chemical reactions that take place in cells-lowers activation energy
- A.
True
- B.
False
- 10.A catalyst ______ the rate of reaction and _______ the activation energy
- 11.Reactants collide with _______ so bonds will be broken and new bonds will form.
- 12.How does temperature effect enzyme activity?
- 13.Substrates and enzymes are like the analogy of a lock and key. They are unlocking...
- A.
The enzyme
- B.
A bond
- C.
A lock
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Sample QuestionProperties that do depend on the amount of matter present.
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Sample QuestionPb(NO3)2+ 2 KI ---> PbI2+ 2 KNO3 What constitutes this reaction?
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