enzyme

2. It is because of the
Enzymatic Browning.

3. Enzymatic Browning
- is an oxidation reaction that
takes place in some foods,
mostly fruits and vegetables,
causing the food to turn brown.

4. - These are organic or biological
catalyst.

6. Catalysts
- are substances that speed up
a reaction without being used
up, destroyed, or incorporated
into the end product.

8. Because it is essential for
digestion, liver function and
much more. Too much or too
little of a certain enzyme can
cause health problems.

12. - protein portion that forms
inactive enzyme

14. - nonprotein portion that
supports a biochemical
reaction (activator)

16. - the whole enzyme which is
catalytically active

18. - they supply positive charges
to the enzyme through covalent
bonding

19. EXAMPLES: Mg+2, Zn+2,
Mn+2, Na+1, Fe+2, K+1,
and Cu+2

20. - organic molecules that usually
come from vitamins that we
take everyday, they are
temporarily bind to apoenzyme

22. - can be either metal ions/
organic molecules, they bind to
apoenzyme permanently

24. Take note that, for an enzyme to
proceed to its catalytic action, there are
specific cofactors/coenzymatic fuctions
like vitamins and minerals to meet our
nutritional needs everyday for our body
to function effeciently.

25. -there are minimum amount of
energy needed to start any
chemical reaction which is
what we call the "Activation
Energy"

29. When oxygen in air, reacts
with chemicals on the surface
of the cut fruit.
The oxygen oxidizes the
chemicals in the fruit causing a
redox reaction, therefore, the
color changes.

31. - reduction(redox) reactions, in
which electrons are transferred
from one reacting species to
another.

33. -Are the chemical changes that
occurs whaen electrons are
transferred between reactants

35. - originally meant
combining with oxygen

36. - originally meant the loss
of oxygen from a
compound

38. - LOSS of ELECTRONS

39. - GAIN of ELECTRONS

44. EXAMPLE: Na -- Na + e
- (notice the electron are on the right)

45. EXAMPLE: Cl2 + 2e- -- 2Cl
- (notice the electrons are on the left)

46. -replacement reactions, combination reactions,
decomposition reactions and combustion
reactions are REDOX REACTIONS.

47. Examples of reactions that
are NOT REDOX
REACTIONS include
double-replacement
reactions and acid-base
reactions.

49. -If any atoms CHANGE THEIR
OXIDATION NUMBER, the
reaction is redox

50. -The element that INCREASES
ITS OXIDATION NUMBER is
oxidized

51. -The element that DECREASES
ITS OXIDATION NUMBER is
reduced

52. -The reactant that CONTAINS
THE ELEMENT THAT IS
OXIDIZED is the reducing agent

53. -The reactant that CONTAINS
THE ELEMENT THAT IS
REDUCED is the oxidizing agent