Biology Questions and Answers
In the lock and key model the enzyme
has a region with spconformation for the binding of theecific spatial (^)
substrate. In the induced fit model the
binding of the substratechange in the spatial configuration o induces a (^) f
the enzyme for the substrate to fit.
- How does the formation of
the enzyme-substrate
complex explain the reduction
of the activation energy of
chemical reactions?
The enzyme possibly works as a ttube within which reagents meet toest
form products. With the facilitationthe meeting provided by enzymes it is of (^)
easier for collisionsoccur and thus the activation between reagents to energy of
the chemical reaction is reduced. This is
one of the possible hypotheses.
- On what structural level of
the enzyme (primary,
secondary, tertiary or
quaternary) does the enzyme-
substrate interaction depend?
The substrate bithe activation centers. Tnds to the enzyme ihese are n
specific three-dimensional sites anthus they depend on the protein tedrtiary (^)
and quaternary structures. The primary
and secondary condition the other structuresstructures, however, and so (^)
they are equally important.
- What is the activation
center of an enzyme? Is it the
key or the lock of the lock and
key model?
The activationenzyme produced by its spatial center is a region of the
conformation binds. In the lock and key model theto which the substrate (^)
activation center is the lock and the
substrate is the key.
- Why can it be said that the
enzymatic action is highly
specific?
The enzymatic action is highly specific
because enzyme bind to the only specific substrates of activation center ofone (^)
that enzyme. Each enzyme generally
catalyzesreaction. only a specific chemical
- What happens to a
denatured enzyme regarding
its functionality? How can that
result be explained with the
help of the lock and key
model?
According to the lock and key model the
enzyme functionalityon the integrity of the activation depends entirely center, (^)
a molecular region with specific spatial
characteristics.the spatial conformation o After the denaturationf the protein (^)
is modified, the activation center is
destroyecatalytic activity.d and the enzyme loses its
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