All amino acids have an amino group and a carboxyl group. a chloro group. a bromo group. a benzyl group.

Answer : The correct option is, (A) carboxylic acid.

Explanation :

Amino acid : It is an acid which contains two functional groups which are carboxylic group, and ammino group, .

When the several amino acids join together with the help of peptide bond, they produce polypeptide chain or protein.

The bond present between the two amino acid is that peptide bond. The peptide bond is formed between the nitrogen of one amino acid and carbon of another amino acid.

Hence, the all amino acids have an amino group and carboxylic acid group.

The structure of amino acid is shown below.

Bthe s the

First up write the aim
then write the materials reqd.
then the procedure which you follow
then observation
then conclusion
then you can write lab safety rules or precautions(you can avoid if u want).
lemme' give an example
aim: to observe the double displacement reaction
materials reqd: bacl2 and na2so4, test tubes and a dropper
procedure:
1. take bacl2 in a test tube and na2so4 in the other.
2. then pour bacl2 into na2so4 solution.
3. observe
observation:
you will see that a white precipitate is formed called baso4. along with that common salt or nacl is formed.
the equation is
bacl2+na2so4=baso4+2nacl
conclusion:
a double displacement reaction is observed.
hope it