Those fungi which can grow only on their living host and cannot be grown on available defined growth culture medium e.g. various mildews and most rust species are called_____________?
Correct answer: B. Obligate parasitic fungi
- A. Parasitic fungi
- B. Obligate parasitic fungi
- C. Facultative parasitic fungi
- D. All of these
Explanation
Obligate parasitic fungi must obtain nutrients from a living host and cannot normally complete growth on an artificial defined culture medium. Facultative parasites can also grow independently as saprotrophs, so that term does not fit fungi that require a living host.
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About Classification of Biological Molecules
Biological molecules are classified as carbohydrates, lipids, proteins and nucleic acids, with water, minerals and vitamins also supporting cellular processes. The key distinctions involve their monomers, chemical bonds, structures and functions, including glucose and starch, fatty acids and triglycerides, amino acids and polypeptides, and nucleotides in DNA and RNA.
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