Answer:
They affect chemical reactions by lowering the activation energy, thus speeding up the reactions.
Answer:
A tendon is a cord of strong, flexible tissue,similar to a rope
Explanation:
yun na yun.
An amino acid is a molecule that contains two functional groups , an amine<span> and a</span>carboxylic acid<span> , as shown in Figure 1. In this illustration there is an additional group called the side chain, designated with an R. The variation seen in naturally occurring amino acids arises from differences in this side chain.</span>