In the following diagram, identify the type of solution (hypertonic, hypotonic, or isotonic) in which the red blood cells are immersed.

The process that transports solid objects such as bacteria into the cell is called

(a) Pinocytosis

(b) Phagocytosis

(c) Exocytosis

(d) Receptor-mediated endocytosis

(e) Channel-mediated transport

Plasma membranes are said to be

(a) Impermeable

(b) Freely permeable

(c) Selectively permeable

(d) Actively permeable

(e) Slightly permeable