Question

the purpose of observing carmine powder in water under a microscope is to
a) observe exocytosis
b) observe endocytosis
c) observe brownian movement
d) observe osmosis

Explanation:

Carmine powder particles in water exhibit random, jittery motion under a microscope, which is characteristic of Brownian movement - the random motion of particles suspended in a fluid resulting from their collision with the fast - moving atoms or molecules in the liquid. Exocytosis and endocytosis are cellular processes related to the movement of substances in and out of cells, not applicable here. Osmosis is the movement of water across a semi - permeable membrane.

Answer:

C. observe Brownian movement