Unit 1 review

Question 1

Virus X is able to bind to cell A but not to cell B. However cell B is able to support the replication of Virus x while cell A does not. How would these cells be defined with respect to the ability of virus X to infect them and complete the replication cycle.

Answer 1

Cell A is susceptible and not permissive; Cell B is resistant and permissive

Question 2

Respiration involves the production of ATP using..?

Answer 2

Oxidative phosphorylation

Question 3

This stain bind polysaccharides present in chitin or cellulose which composes the cell wall of this group of microogransims. What stain is this?

Answer 3

Calcufluor White

Question 4

India ink is used to enhance capsul of ..?

Answer 4

Crytocaucus

Question 5

GO OVER FUNGAL STAINS

Question 6

Specialized transduction involves the horizontal transfer of bacterial DNA through…?

Answer 6

Lysogenic Bacteriophage

Question 7

Virus X infects your patient and replicates at the site and your patient has symptoms for the following 8 days. The infecting virus is cleared out by adaptive immune system in 3 weeks. What type of infection did your patient just experience?

Answer 7

An acute infection

Question 8

What material is used as the amplification template for the COVID19 diagnostic PCR test?

Answer 8

cDNA

Question 9

A 45yr old male presents to the clinic with stomach cramps and pain in the left thigh. He provides a stool sample which is found to contain proglottids from a pork tapeworm. What is causing the pain in his left thigh?

Answer 9

The tapeworms embryos formed cysts in the thigh muscle tissue

*Only pork tapeworms are able to form cysts in humans not beef tapeworms unless you eat the eggs beef tapeworm*

Question 10

Which of the replication steps occurs in the adenovirus replication cycle, but does not happen during herpes simplex virus type 1 lytic replication cycle?

Answer 10

The virus escapes the endosome