Chapter 5 Section 2

Question 1

the movement of materials up their concentration gradient. From an area of lower concentration to an area of higher concentration. Requires energy.

Answer 1

Active Transport

Question 2

Carrier protein that transports Na+ ions outside the cell and K+ ions up their concentration gradient.

Answer 2

sodium-potassium pump

Question 3

the process by which cells ingest external fluid, macro molecules, and large particles, including other cells.

Answer 3

endocytosis

Question 4

pouch that pinches off from the cell membrane and becomes a membrane bound organelle

Answer 4

vesicle

Question 5

involves the transport of solutes or fluids

Answer 5

pinocytosis

Question 6

the movement of large particles or whole cells

Answer 6

phagocytosis

Question 7

cells that allow lysosomes to fuse with the vesicles that contain the ingested bacteria and viruses.

Answer 7

phagocytes

Question 8

vesicles in the cytoplasm fuse with the cell membrane, releasing their contents into the cell’s external environment.

Answer 8

exocytosis

Question 9

cells use exocytosis to release large molecules such as _______

Answer 9

proteins

Question 10

facilitated diffusion carrier proteins and cell membrane pumps both

Answer 10

are specific for the kinds of substances they transport.

Question 11

the sodium-potassium pump transports

Answer 11

Na+ ions out of the cell and K+ ions into the cell

Question 12

the energy needed to power the sodium potassium pump is provided by the

Answer 12

splitting of ATP

Question 13

Pinocytosis involves the transport of

Answer 13

fluids into a cell

Question 14

exocytosis is a

Answer 14

way for cells to release large molecules, such as proteins.