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Summary Learning Goals Chapter 2.5 - IB Biology SL
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  • IB Biology SL
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This document provides a short overview of Chapter 2.5: Enzymes in the IB Biology SL curriculum. You will learn about the structure and function of enzymes, the biological catalysts that speed up chemical reactions. This document will help you to prepare for the exam and the internal assessment by ...

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Document information

  • June 13, 2023
  • 3
  • 2022/2023
  • Summary

Subjects

  • ib biology
  • ib biology sl
  • enzymes
  • learning goals
  • ib
  • ib biology chapter 25
  • chapter 25

Written for

  • Secondary school
  • IB Biology SL
  • 4
All documents for this subject (4)

Seller

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bittn

Content preview

CHAPTER 2.5 2.5




Enzymes have an active site
towhich specific bind
substrates



Enzymes are proteins somewhere in their three-dimensional
-




shape is an area
designed match
to a
specific molecule, known

as a substrate


↳ is match molecule
it designed to a specific
similar to lock and key
I
a a




enzymes and their subtrates are specific for each other



a
regulator or inhibitor

e.g.
⑳

=
- substrate


i QUactivesite
"
A
lock and
key
W can be used as

= a
drug target
E -
S -



Komplex


Enzyme catalysis involves molecular motion and collision ofsubtrates
with the active site



substrates enter
need to the active site
with a minimum rate
motion providing the for the reaction to
of energy needed occur
-




A

activation S
energy

the provide
enzyme don't the energy required to complete a

reaction butlower it: they act
as a
catalyst
enzymes are not
reactants the
of reaction and can be reused
withoutthem, reactions would occur less frequent, so
they are not

responsible for the reaction happening in the firstplace -




they just
make it
more likely




iii. entertain

reaction who reaction
enzyme w/enzyme

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