Question

Enzymes are made up of:
A.Carbohydrate
B.Lipid
C.Vitamin
D.Protein

Answer 1

Enzymes are present all over our bodies. Their purpose is to speed up our bodies processes and mechanisms. Our body has various reactions going one inside any cell which are speeded up by catalysts. Catalysts speed up reactions and enzymes are a form of catalysts. There are different enzymes present for different reactions.

Complete step-by-step answer: A bacterium like E. coli has about $1,000$ different types of enzymes floating around in the cytoplasm at any given time. They allow cells to carry out chemical reactions very fast. This helps the cell to grow in number and also helps them to reproduce. At the most basic level, a cell is really a little bag full of chemical reactions that are made possible by enzymes.
They are composed of amino acids which form proteins. Proteins are chains of amino acids. In enzymes a lot of amino acids bind together in a unique order. This makes enzymes reaction specific. This means there are different enzymes for every reaction. These amino acids fold into a unique shape which allows them to carry out their own reaction. Thus this will mean that the enzyme speeds that reaction up tremendously.

Thus the correct option is $\left( D \right)$

Note: We know that the sugar maltose is made from two glucose molecules which are very firmly bonded together. The enzyme maltase is an enzyme which can break down two glucose pieces and thus break the bond. It is shaped in such a way that it can do it efficiently and quickly. There is a site called active site which is present on an enzyme. This site helps the breaking of bonds.