Question

Match the following images with the respective given steps P,Q,R,S

• A. I - S, II- P, III- Q, IV - R
• B. I - Q, II- P, III- R, IV - S
• C. I - P, II- R, III - Q, IV- S
• D. I- R, II- P, III - Q, IV- S

Answer 1

The correct option is C

I - P, II- R, III - Q, IV- S

To a macrophage anything foreign is there to be eaten. When bacteria or virus enter the body and find their way into the tissue, they leave a chemical trail that is detected by receptors on a patrolling macrophages cell membrane. If receptors on these extensions recognize incriminating markers on the bacterial or viral surface, they bind to them.Once captured, the virus or bacteria is drawn into the macrophage and packaged in a sac pinched off from the cell membrane. As it moves through the cytoplasm, the sac fuses with lysozyme. These safely dismantle the bacterium without digesting the macrophage itself.