Question

Question No. 35
Essential amino acids
Cannot be components of polypeptides
Are synthesised by the body
They are called so because only they are constituents of all the polypeptides
Have to be supplied in diet​

Answer 1

Answer: BELOW

Explanation:Essential amino acids, also known as indispensable amino acids, are a group of amino acids that humans and other vertebrates cannot synthesize from metabolic intermediates. These amino acids must be supplied from an exogenous diet because the human body lacks the metabolic pathways required to synthesize these amino acids.[1][2] In nutrition, amino acids classify as either essential or non-essential. These classifications were a result of early studies on human nutrition, which showed that specific amino acids were required for growth or nitrogen balance even when there is an adequate amount of alternative amino acids.[3] Although variations are possible depending on the metabolic state of an individual, the general held thought is that there are nine essential amino acids, including phenylalanine, valine, tryptophan, threonine, isoleucine, methionine, histidine, leucine, and lysine. The mnemonic PVT TIM HaLL ("private Tim Hall") is a commonly used device to remember these amino acids as it includes the first letter of all the essential amino acids. In terms of nutrition, the nine essential amino acids are obtainable by a single complete protein. A complete protein, by definition, contains all the essential amino acids. Complete proteins usually derive from animal-based sources of nutrition, except for soy. The essential amino acids are also available from a combination of incomplete proteins, which are usually plant-based foods. The term "limiting amino acid" is used to describe the essential amino acid that is present in the lowest quantity in a food protein relative to a reference food protein like egg whites. The term "limiting amino acid" may also refer to an essential amino acid that does not meet the minimal requirements for humans

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Answer 2

Explanation:

Amino acids are the building blocks that form polypeptides and ultimately proteins. Consequently, they are fundamental components of our bodies and vital for physiological functions such as protein synthesis, tissue repair and nutrient absorption. Here we take a closer look at amino acid properties, how they are used in the body and where they come from.