Nonessential amino acids

Definition

Nonessential amino acids are amino acids that can be synthesized by the human body and do not need to be obtained through the diet. They play a crucial role in various bodily functions, including protein synthesis and metabolic processes.

5 Must Know Facts For Your Next Test

1. There are 11 nonessential amino acids commonly recognized in human nutrition.
2. Nonessential amino acids include alanine, asparagine, aspartic acid, and glutamic acid.
3. Despite being 'nonessential,' these amino acids are vital for maintaining muscle tissue and supporting the immune system.
4. The liver is primarily responsible for synthesizing nonessential amino acids from other compounds in the body.
5. In certain conditions, like illness or stress, some nonessential amino acids may become conditionally essential.

Review Questions

• How many nonessential amino acids are there?
• Which organ is primarily responsible for synthesizing nonessential amino acids?
• Can nonessential amino acids become essential under certain conditions?

Related terms

Essential Amino Acids: Amino acids that cannot be synthesized by the body and must be obtained through diet.

Conditionally Essential Amino Acids: Amino acids that usually are not essential but become essential due to stress or illness.

Protein Synthesis: The process by which cells build proteins using amino acids.