Study the given statements and select the correct option.
Carbohydrates, proteins, nucleic acids and lipids are primary metabolites.
Alkaloids, floavonoids, rubber, etc., are secondary metabolites.
Linoleic, linolenic and palmitic acids are the three essential fatty acids.

Options

A. Statements (i) and (ii) are correct.
B. Statements (i) and (iii) are incorrect.
C. Statements (i) and (iii) are correct.
D. Only statement (ii) is incorrect.

Answer

A

Explanation

Plants produce various types of chemicals. Some of the organic compounds like carbohydrates, fats, proteins nucleic acids, chlorophylls, etc., are required for their basic metabolic processes and are found throughout the plant kingdom. Such organic compounds are called primary metabolites or biomolecules. These are produced in large quantities and can be easily extracted from the plants.
Many pants, fungi and microbes of certain genera and families synthesise a number of organic compounds which are not involved in primary metabolism (photosynthesis, respiration, protein and liquid metabolism) and seems to have no direct role in growth and development of plants. such compounds are called secondary metabolites. These compounds are accessory rather than central to the functioning of the plants in which they are found. Primary metabolites have identifiable functions and play important roles in normal physiological processes. However, the function of all the secondary metabolites in host organism are yet clearly understood.