The first one according to the graph
They work like a lock and key. Each enzyme is designed to fit into a specific substrate. Well let me start by explaining what an enzyme is and then a subtrate. An enzyme is a protein that speeds up the chemical reaction in a living organism. An enzyme acts as a catalyst for specific chemical reactions, converting a specific set of reactants called substrates into specific products.
<span>The correct answer to this question is to
find an alternative energy source when glucose is absent or not present in <span>sufficient
amounts. Lac operon helps in the breaking down of lactose to be converted as
food source and also in the breaking down of molecules in releasing energy. </span></span>
Answer:
water flows through the landscape. the condition of the land surface affects the flow and quality of water .