Enzymes are proteins that help control chemical reactions.
Most enzymes are proteins. Almost all chemical reactions in a biological cell need enzymes in order to occur at rates sufficient for life. Since enzymes are selective for their substrates and speed up only a few reactions from among many possibilities, the set of enzymes made in a cell determines which metabolic pathways occur in that cell. Enzymes are known to catalyze about 4,000 biochemical reactions.
According to the classical shell model for electrons, the group 18 elements have a fully filled outer shell, rendering them inert to most chemical reactions (little tendency to participate in chemical reactions ) they are called noble or inert gases
Elements of the same group generally share the same number of valence electrons, which are the electrons in the outer energy level only. These are the electrons that participate in a chemical reaction, so elements in the same group behave similarly in chemical reactions, which makes predictions and generalizations possible.
All the elements in the periodic table of elements are electrically neutral; they do not have charges as elements, although they have the potential to engage in chemical reactions that will turn them into charged ions, in most cases. The different groups tell you what kinds of chemical reactions the elements are capable of, not what kind of charge they have.
In condensation reactions, a molecule of water is removed: an H from one monomer and a OH from the other monomer. Both join together to form water. For this reason, condensation reactions are also called dehydration reactions. Note that condensation/dehydration reactions occur in the bonding of any monomers to form any polymers; not just in proteins.
I believe that you are referring to Enzymes.
The Noble Gases
Elements in the same group have similar chemical properties because they have the same number of valence electrons that are used in chemical reactions.
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Randomly choosing participants for the control group is effective. The reason for this is you could observe reactions of different participants in the control group.
To proteins Enzymes are usually proteins but some also contain nucleic acids (RNA in particular) and the list of chemical reactions that are catalyzed by RNA has been expanding.
They are called "Enzymes" or organic catalysts.
Most enzymes are proteins. Almost all chemical reactions in a biological cell need enzymes in order to occur at rates sufficient for life. Since enzymes are selective for their substrates and speed up only a few reactions from among many possibilities, the set of enzymes made in a cell determines which metabolic pathways occur in that cell. Enzymes are known to catalyze about 4,000 biochemical reactions.
Biological catalysts are called 'enzymes'.
METABOLISM. Metabolism is the sum of the group of reactions to obtain energy
A substitution reaction is when a functional group in a particular chemical compound that is replaced by another group. Functional groups are specific groups of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules. A chemical compound is a pure chemical substance consisting of two or more different chemical elements, which can be separated into simpler substances by chemical reactions.
mouth, proteins, lipides...