Which of the following is not an essential amino acid?

By: Prof. Dr. Fazal Rehman Shamil | Last updated: February 3, 2024

Question:  Which of the following is not an essential amino acid?

A  Valine

B  Lysine

C   Histidine

D  Glycine

Answer:   Glycine

 

Aspect

 

 

 Essential Amino Acids Non-Essential Amino Acids
 

 

Introduction

 ·        Cannot synthesize by the body.

·        They must be obtained through the diet.

 ·        Body can synthesize on its own.

·        They are not required to be obtained through the diet.
Total no. of amino acids            9             11
 

 

Examples

 

 ·        Leucine

·        Isoleucine

·        Valine

·        Histidine

·        Lysine

·        Methionine

·        Phenylalanine

·        Threonine

·        Tryptophan

 ·        Glycine

·        Alanine

·        Arginine

·        Asparagine

·        Aspartic acid

·        Cysteine

·        Glutamic acid

·        Glutamine

·        Proline

·        Serine

·        Tyrosine
 

Food sources

  

·        Beef

·        Poultry

·        Fish

·        Soybeans

·        Almonds

·        Eggs

·        Dairy

·        Lentils

·        Nuts

 

  

·        Meat

·        Poultry

·        Fish

·        Nuts

·        Asparagus

·        Potatoes

·        Legumes
 

 

Function

 ·        These are building blocks of proteins

·        These amino acids also support the process of body growth.

·        They also help to repair body tissues.

 

 ·        These are also building blocks of proteins

·        Involved in various metabolic processes
Deficiency symptoms  

·        Poor coordination

·        Muscle weakness

·        Difficulty in coordination

·        Anemia

·        Poor joint health

 

  

·        There is rare chance of deficiency as can be synthesized by the body

 

 

 

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