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DP IB Biology: HL

Topic Questions

Home / IB / Biology: HL / DP / Topic Questions / 2. Molecular Biology / 2.4 Enzymes / Multiple Choice: Paper 1


2.4 Enzymes

Question 1

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    Question 2

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      Question 3

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        Question 4

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        Which statement below best describes the concept of enzyme-substrate specificity?

        • Enzymes and substrates fit together because they are the same type of biological molecule.

        • The enzyme's precise 3-D shape and chemical properties are compatible with the substrate allowing formation of enzyme-substrate complexes.

        • An enzyme can adapt its active site to fit a range of substrates to give maximum catalytic ability.

        • Projections on the enzyme's surface match projections on the substrate's surface.

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        Question 5

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          Question 6

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            Question 7

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              Question 8

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                Question 9

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                  Key Concepts
                  Immobilised Enzymes

                  Question 10

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                  A student wished to use a starch solution of 0.01% for an enzyme experiment. A stock solution of 1.0% starch solution was provided. 

                  Which of the following dilutions would be the best method to achieve the desired concentration with greatest precision, using standard laboratory equipment? 

                  serial-dilution-method-mcq

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