Because Mitosis is used for growth and repair
A dipeptide is formed when 2 amino acids are joined together by a peptide linkage.
Each amino acid molecule contains an amino group ( -NH₂) and a carboxyl ( -COOH) group. During peptide formation, a carboxyl group of one amino acid reacts with amino group of the other , resulting in the formation of a linkage known as "peptide linkage". A water molecule is also eliminated in this reaction.
A general peptide formation reaction can be written as
![NH_{2}-CH_{2}-COOH + H_{2}N-CH_{2}-COOH \rightarrow NH_{2}-CH_{2}-CONH-CH_{2}-COOH +H_{2}O](https://tex.z-dn.net/?f=%20NH_%7B2%7D-CH_%7B2%7D-COOH%20%2B%20H_%7B2%7DN-CH_%7B2%7D-COOH%20%5Crightarrow%20NH_%7B2%7D-CH_%7B2%7D-CONH-CH_%7B2%7D-COOH%20%2BH_%7B2%7DO%20)
In the above reaction, we can see a peptide linkage ( -CONH-) getting formed between 2 amino acid molecules.
In the given molecule the peptide linkage is shown by drawing a box around it. Please refer to the attached image.
If we want to know the amino acid molecules from which this peptide is formed, we will simply break the CO-NH bond.
We will add -OH group to CO part and -H to NH part to get 2 amino acid molecules as shown in the picture.
The two amino acids thus formed are Serine & Cysteine.
Serine is designated as "Ser" and Cysteine is designated as "Cys"
Therefore the given dipeptide is designated as "Ser-Cys"
Moles of hydrogen = 5.08 x 10^16
---------------------------
6.02 x 10^23
= 8.43 x 10^-8 moles.
Answer:
![C_2H_2 (g) + \frac{5}{2}~O_2 (g)\rightarrow 2~CO_2 (g) + H_2O (l)](https://tex.z-dn.net/?f=C_2H_2%20%28g%29%20%2B%20%5Cfrac%7B5%7D%7B2%7D~O_2%20%28g%29%5Crightarrow%202~CO_2%20%28g%29%20%2B%20H_2O%20%28l%29)
Explanation:
Acetylene is an organic compound consisting of only carbon and hydrogen atoms, also known as a pure hydrocarbon.
Every hydrocarbon might undergo either an incomplete or a complete combustion. In an incomplete combustion, carbon monoxide is produced along with water, while in a complete combustion, there's enough oxygen to oxidize the resultant carbon monoxide to carbon dioxide.
In a complete combustion of acetylene, it reacts with oxygen to produce carbon dioxide and water:
![C_2H_2 (g) + \frac{5}{2}~O_2 (g)\rightarrow 2~CO_2 (g) + H_2O (l)](https://tex.z-dn.net/?f=C_2H_2%20%28g%29%20%2B%20%5Cfrac%7B5%7D%7B2%7D~O_2%20%28g%29%5Crightarrow%202~CO_2%20%28g%29%20%2B%20H_2O%20%28l%29)
The theoretical yield of Li3N is 20.9 g .