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]]>Branch which deals with the studies of fungi is called mycology. Mode of nutrition in the fungi is heterotrophic. Most of them are saprophytes, while others maybe parasites. Other than yeast which is unicellular, most of the fungi are multicellular.
Cell wall of fungi is made up of chitin. All fungi possess lysosomal enzyme which helps the fungi in attacking the host cells and in digesting the decayed matter. Some fungi along with yeast have plasmid this is helpful in cloning the foreign genes. This property found useful in the genetic engineering.
Single hyphal cell of yeast may have 1-2 nuclie. Each hyphal cell is separated with the help of septa. Flow of nutrition form one hyphal cell to other is made possible through the hole present in the septa.
Reproduction in fungi may be sexual, asexual or both. Few fungi are only able to undergo asexual reproduction. Asexual reproduction is done through mitotic divisions in cell, for e.g., budding in yeast. Sexual reproduction is done though plasmogamy, karyogamy and formation of dikaryotes in some organisms.
Classification of fungi is based upon the nature of sexual stages in their life cycle. According to this, fungi can be classified into following classes:
1. Cell wall of fungi is made up of?
a. Cellulose
b. Hemicellulose
c. Chitin
d. Lignin
2. Mode of reproduction is fungi is?
a. Sexual
b. Asexual
c. Both a . and b.
d. None of the above
3. Zygomycota are also known as?
a. Bread moulds
b. Sac fungi
c. Club fungi
d. Fungi imperfecti
4. No sexual stage is found in which class of fungi?
a. Ascomycota
b. Basidiomycota
c. Deuteromycota
d. Zygomycota
5. Which of the following statement is INCORRECT related with the zygomycota class of fungi?
a. They produce plus and minus strains of spores
b. They have a septa having a central pore in it
c. Rhizopus is the member of this class
d. Zygospore so formed is thick walled and resistance structure
6. Match the following members of fungi with their correct class-
i. Rhizopus | A. Zygomycota |
ii. Neurospora | B. Ascomycota |
iii. Claviceps | C. Basidiomycota |
a. i-A, ii-C, iii-B
b. i-A, ii-D, iii-D
c. i-B, ii-C, iii-A
d. i-B, ii-D, iii-C
7. Match the following structure of fungi with their correct description-
i. Septa | A. Loosely organized mass of hyphae |
ii. Hyphae | B. Cross walls separating hyphal cells |
iii. Mycelium | C. Thread like structures in fungi |
iv. Thallus | D. Body of fungus |
a. i-A, ii-C, iii-B, iv-D
b. i-A, ii-D, iii-D, iv-D
c. i-B, ii-C, iii-A, iv-D
d. i-B, ii-D, iii-C, iv-A
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1-c
2-c
3-a
4-c
5-b
6-a
7-c
The post Classification of Fungi, Characteristics of Fungi / Microbiology Subjective Notes and MCQs on Fungi appeared first on Gpatindia: Pharmacy Jobs, Admissions, Scholarships, Conference,Grants, Exam Alerts.
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