Question

Bacteria such as E. coli and Salmonella produce invasins that bind host cells, thus causing the cells to_____________.

a. engulf the bacteria.
b. produce iron-binding proteins.
c. release cytokines.
d. destroy the bacteria.
e. release TNF.

Answer 1

Answer: Option A.

Invasins cause the cell to engulf bacteria.

Step-by-step explanation:

Invasins is an enzyme or protein that allow pathogens to penetrate into the host cells. Inavasins allow Salmonella to gain entry into the host cells and bind it to it thereby engulfing the bacteria during the stage of infection. Salmonella and E.coli produce invasins enzymesso as to penetrate the host cells and enqulf the bacteria.

Answer 2

A) Engulf the bacteria.

Step-by-step explanation:

Invasins are basically enzymes (protiens) which act to damage the host cells locally. As E.Coli and Salmonella are the invasive bacteria , they need to invade the body cells in order to causes infection . It is involved in pathogenesis. So as the enter the body they release invasins ,bind to host cells and cause them to engulf the bacteria which is then carried to the desired location and cause disease.

Hence a) Engulf the bacteria is the right option