Bulk Transport (Endocytosis + Exocytosis)

Question 1

A cell can also transport materials in bulk by

Answer 1

-endocytosis
–exocytosis

Question 2

Endocytosis occurs when

Answer 2

material is engulfed by extensions of cell membrane and cytoplasm surrounding it making a vesicle

Question 3

Two types of endocytosis are

Answer 3

-phagocytosis
-pinocytosis

Question 4

Phagocytosis is

Answer 4

-uptake of solid material that’s too large to be taken in by diffusion or active transport

Question 5

Phagocytosis

Answer 5

-when granulocytes engulf bacteria, lysosome fuses with the vesicles are formed and enzymes digest the cells
-products are absorbed into the cytoplasm

Question 6

Pinocytosis is

Answer 6

uptake of liquid by the same mechanism, although vesicles produced are smaller

Question 7

Exocytosis is

Answer 7

-the process by which substances may leave the cell, having been transported through the cytoplasm in a vesicle, fuses with cell membrane
-digestive enzymes are often secreted this way

Question 8

When endocytosis or exocytosis occurs

Answer 8

-the cell membrane has to change shape, requires ATP
-in both cases the cell membrane flows