Question

Phagocytosis is a process by which cells do which of the following?

A.) ingest extracellular fluid and macromolecules
B.) consume large particles, such as microbes and cell debris
C.) engage in receptor mediated endocytosis
D.) secrete hormones and neurotransmitters
E.) digest their own worn out organelles

Answer 1

Phagocytosis is a process by which cells consume large particles, such as microbes and cell debris, in order to protect the body from infection.

Step-by-step explanation:

Phagocytosis is a cellular process by which cells ingest and digest large particles, such as microorganisms, cell debris, and other cells. This is in contrast to "cell drinking" or pinocytosis, which involves the intake of extracellular fluid containing dissolved substances. During phagocytosis, parts of the cell membrane extend around the target particle to form a vesicle known as a phagosome, which is then internalized. The phagosome merges with a lysosome, whose digestive enzymes break down the engulfed material.

Therefore, the correct answer to the student's question is B.) consume large particles, such as microbes and cell debris. Phagocytosis is a way for immune cells like neutrophils to remove invaders by engulfing and destroying them. It is a crucial part of the body's defense mechanism against infection.