Hi lovely,
The answer you're looking for would be A).
The correct option is D.
Enzymes are biological catalysts that speed up the rate of biochemical reactions in living systems by lowering the activation energy required for the reactions to occur. Enzymes take part in various reactions but they are never used up during the course of the reaction.
Enzymes are very specific in action and will only catalyze certain reactions under optimal conditions. For a single examine to catalyze two different reactions, it implies that the enzyme either have two active sites or the molecules involve in the reaction are very similar in term of size and shape.
I think it would be the first one
Answer:
Mitochondrion (plural mitochondria): This is the 'powerhouse' of the cell
(Adenosine triphosphate – ATP for short)??? right
