Question

2.7 pts. Look at this diagram of a bacterial cell carrying out a type of antibiotic resistance. antibiotic 88- boto 2 a-c) What does each shape, 1, 2, 3 represent? d) What is happening at the first arrow on the left? e) What is happening at the second arrow? f) How does this mechanism allow the microbe to be antibiotic resistant? g) How does gene expression apply to this diagram?

Answer 1

A)1- is transporter of specific a antibiotics through which antibiotics thrown outside eg ABC antibiotics binding cassette.

B)2-genomic DNA,

C) 3- ribosomes

D) diffusion of antiobiotcs inside of cells

E) transcription of specific mRNA against antibiotics

F) synthesis of specific transporter which can bind to cells membrane and hence cause throwing of antibiotics from inside to outside.

G) binding of diffused antibiotics binds to specific receptor present inside the cell which acts as transcriptionsl factor and binds to DNA and cause synthesis of specific transporter protein which are targeted to cell surface and cause release of antibiotics from cytoplasm.

So local concentration of antibiotics dies get accumulated inside the cytoplasm and hence bacteria able to antibiotics resistant.

Hope it's clear.. thanks