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Primary Metabolites vs. Secondary Metabolites

The main difference between primary metabolites and secondary metabolites is that primary metabolites are the metabolites that are required for the growth and regulation of cellular functions whereas secondary metabolites are the metabolites that are obtained as the end product of primary metabolites.

Key Differences

Primary metabolites occur at the growth phase on the flip side; secondary metabolites occur at the stationary phase.
Primary metabolites produced at a phase also known as trophophase; on the other hand, secondary metabolites are produced at a phase that is known as idiophase.
Primary metabolites are the same in every species. Conversely, secondary metabolites vary in different species.
Harlon Moss
Jul 26, 2019
The metabolic products that are formed during the growth phase of an organism to perform the physiological functions and to regulate the development of the cell are called primary metabolites, whereas the final products of primary metabolism that are formed after the growth phase and play an important role in ecological and many other activities of the cell are known as secondary metabolites.
The primary metabolites are used in different industries for various purposes. They play an important role in cell growth, development and reproduction while there are many important secondary metabolites such as antibiotics and gibberellins, etc. They also support the cell to sustain their life for a long duration.
Aimie Carlson
Jul 26, 2019
Primary metabolites are produced in large quantities, but secondary metabolites are produced in small quantities.
Harlon Moss
Jul 26, 2019
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Vitamins, proteins, carbohydrates, and lipids are some examples of primary metabolites whereas phenolics, essential oils, alkaloids, and steroids are a few examples of secondary metabolites.
Aimie Carlson
Jul 26, 2019
The extraction of primary metabolites is easy whereas the extraction of secondary metabolites is difficult.

Comparison Chart

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The metabolic products that are formed during the growth phase of an organism to perform the physiological functions and to regulate the development of the cell are called primary metabolites.
The final products of primary metabolism that are formed after the growth phase and play an important role in ecological and many other activities of the cell are known as secondary metabolites.

Known As

It is also known as trophophase.
It is also known as idiophase.

Phase

It occurs in the growth phase.
It occurs at the stationary phase.

Occurrence

Primary metabolites are the same in every species.
Secondary metabolites vary in different species.
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Quantities

These are produced in large quantities.
These are produced in small quantities.
Aimie Carlson
Jul 26, 2019

Extraction

Their extraction is easy.
Their extraction is difficult.
Samantha Walker
Jul 26, 2019

Importance

Primary metabolites are used in many industries for various purposes. They play an important role in cell growth, development, and reproduction.
There are many important secondary metabolites such as antibiotics and gibberellins etc. They also support the cell to sustain their life for a long duration.

Examples

Vitamins, proteins, carbohydrates, and lipids are some examples of primary metabolites.
Phenolics, essential oils, alkaloids, and steroids are a few examples of secondary metabolites.
Harlon Moss
Jul 26, 2019

Primary Metabolites vs. Secondary Metabolites

Microbial Metabolic products are actually the low molecular weight compound that is essential for the metabolic processes of cell or body. These products are divided into two main types, i.e., the primary metabolites and the secondary metabolites. Primary metabolites are the metabolic products that are formed during the growth phase of an organism to perform the physiological functions and to regulate the development of the cell whereas secondary metabolites are the final products of primary metabolism that are formed after the growth phase and play an important role in ecological and many other activities of the cell. Primary metabolites are produced in large numbers, and their extraction is easy while secondary metabolites are produced in small amount and their extraction is difficult. Amino acids and the vitamins etc. are the examples of primary metabolites whereas steroids and antibiotics etc. are the examples of secondary metabolites.

What are Primary Metabolites?

Primary metabolites are produced in trophophase or primary metabolism during the growth phase. They produced in the presence of all required nutrients. They play an important role in the growth, development, and reproduction of a cell. They maintain a normal physiological process, so they are also known as a central metabolite. The exponential growth of the microorganisms starts during tropophase. These metabolites are used in different industries for various purposes.

Types

  • Primary Essential Metabolites: These are the compounds that are essential for cell growth and hence produced in adequate amount. Nucleosides, vitamins and amino acids are examples of the primary essential metabolites.
  • Primary Metabolic End Products: These are the compounds that are the normal end products of the fermentation process of primary metabolism such as ethanol, acetone, lactic acid, and butanol, etc.

What are Secondary Metabolites?

Secondary metabolites produced during idiophase or secondary metabolism after the exponential phase ends. This phase occurs at the time of the limited nutrients or in the accumulation of waste products. They do not want to play a direct role in the growth of cell and are produced in small quantities. So, they are known as the end products of primary metabolites. Antibiotics, alkaloids, gibberellins, toxins, and steroids, etc. are examples of secondary metabolites. They are produced in a large number of industries and also support the cell to sustain their life for a long duration. Bacitracin that is derived from an organism Bacillus subtilis is an antibiotic that is commonly used as a topical drug.

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