Enzymes Flashcards
How could you increase the rate of an enzyme controlled reaction with a reversible inhibitor present?
Increase the substrate concentration
State what energy is increased when temperature increases.
Kinetic
Explain the outcome of increasing the substrate concentration on an enzyme controlled reaction.
Beacuse there is more susbtrate
Then there are more successful collisions between enzyme and substrate, so more enzyme substrate complexes form,
therefore increasing the rate of reaction.
Active site is a part of an enzyme that is
specific and complementary in shape and charge to the substrate.
A substrate is the
reactant in an enzyme reaction.
The induced fit enzyme theory is the idea that ..
enzyme and substrate mould together
The lock and key enzyme theory is the idea that ?
enzyme and substrate fit together in a rigid manner
Non-competitive inhibitors ?
Chemicals that bind to an allosteric site and change the 3D shape of an enzyme’s active site so it no longer functions.
Products in a reaction are …
The resultant chemicals produced by an enzyme reaction from the initial substrate.
The enzyme substrate complex is when ?
Enzyme bound to substrate following a successful collision.
Competitive inhibitors are . ..
Chemicals that are complementary in terms of shape and charge to the enzyme active site.
They occupy the active site, thus slowing down the rate of a reaction as less enzyme-substrate complexes form
If an enzyme has denatured it has changed the ?
3D shape of an enzyme, changing the shape of the active site, so it is no longer complementary and specific to substrate
Anabolic reactions are ?
Reactions that build chemicals - also called synthesis reactions e.g. photosynthesis
Catabolic reactions are ..
Reactions that break chemicals down - also called decomposition reactions e.g.aerobic adn anaerobic cellular respiration
Endergonic reactions are?
Energy-requiring reactions - link to anabolic reactions