mycology

Question 1

1. What are the fungal cell component?

Answer 1

• Cytoplasmic membrane: with Ergosterin

- Cell wall: Chitin, Glucan, Cellulose

Question 2

2. Classification the fungi by morphology?

Answer 2

<p>a. Unicellular or yeast</p>

<p>b. Multicellular or mould</p>

<p>c. Dimorphic</p>

Question 3

<p>3. Characterisation of the dimorphic fungus?</p>

Answer 3

<p>a. at room temp'--> grow like moulds</p>

<p>b. at body temp'--> grow like yeast</p>

Question 4

4. List at least 2 Asexual spore types?

Answer 4

• Blasto-spore
• Arthro-spore
• Spherule
• Conidia

Question 5

5. What is the cultivation temperature of the Fungi?

Answer 5

To detect dimorphism:

• 25C
• 37C

Question 6

6. What kind of culture media is used to cultivate Fungi?

Answer 6

Sabouraud Culture media

Question 7

7. What are the content of Sabouraud culture media?

Answer 7

• Anti-Fungal agents against environmental moulds
• Carbohydrates
• Abx

Question 8

8. What kind of diseases can be caused by Fungi?

Answer 8

• Allergies
• Mycosis
• Intoxications

Question 9

9. Classification of the mycosis?

Answer 9

• superficial
• cutaneous
• subcutaneous
• systemic
• opportunistic

Question 10

10. What kind of staining can be used in Mycology?

Answer 10

• Gram
• Gomori-Grocott
• PAS
• India ink
• Methylene blue

Question 11

<p>11. Mode of action of the antifungal drugs?</p>

Answer 11

<p>-ergosterin synthesis inhibition</p>

<p>-pore formation on membrane</p>

<p>-nucleic acid synthesis inhibition</p>

<p>-cell division inhibition</p>

<p></p>

Question 12

<p>12. List three causative agent of systemic mycosis:</p>

Answer 12

<p>1. Cocc-idioides immitis</p>

<p>2. Paracocc-idioides immitis</p>

<p>3. Histoplasma capsulatum</p>

<p>4. Blasto-myces dermatitidis</p>

Question 13

<p>13. List two Candida species:</p>

Answer 13

<p>-Candida albicans</p>

<p>-Candida krusei</p>

<p>-Candida tropicalis</p>

<p>-Candida glabrata</p>

<p>-Candida parapsi.losis</p>

Question 14

<p>14. List three causative agent of opportunistic mycosis:</p>

Answer 14

<p>-Candida sp</p>

<p>-Crypto<strong>coccus</strong> neoformans</p>

<p>-<strong>Pneumo</strong>cystis jirovecii</p>

<p>-Aspergillus sp.</p>

<p>-<strong>Penicil</strong>lium sp.</p>

<p>-Mucor sp.</p>

<p>-<strong>Rhizo</strong>pus sp.</p>

Question 15

<p>15. Which fungus can cause subcutaneous mycosis?</p>

Answer 15

<p>Sporo<strong>thrix</strong> shenkii</p>

Question 16

<p>16. What is the most common causative agent of superficial mycosis?</p>

Answer 16

<p>Malassezia FURFUR</p>

Question 17

<p>17. List two causative agent of dermatomycosis:</p>

Answer 17

<p>-<strong>Tricho</strong>phyton sp.</p>

<p>-<strong>Epidermo</strong>phyton sp.</p>

<p>-<strong>Micro</strong>sporum sp.</p>

Question 18

<p>18. What kind of diseases can be caused by <strong>dermato</strong>phytes?</p>

<p>(3 example)</p>

Answer 18

<p>-Tinea pedis</p>

<p>-T. manus</p>

<p>-T. capitis</p>

<p>-T. corporis</p>

<p>-T. faciei</p>

<p>-T barbae</p>

Question 19

<p>19. Listtwo 2 <strong>Tricho</strong>phyton species:</p>

Answer 19

<p>-<strong>Tricho</strong>phyton rubrum</p>

<p>-<strong>Tricho</strong>phyton tonsurans</p>

<p>-<strong>Tricho</strong>phyton <strong>verruco</strong>sum</p>

<p></p>

Question 20

<p>20. What are the source of the infection caused by dermatophytes?</p>

Answer 20

<p>-<strong>Anthropo</strong>philic –> human</p>

<p>-<b>Zoo</b>philic –> animal</p>

<p>-<b>Geo</b>philic –> soil</p>

<p></p>