Biology 30S
Active Transport & Bulk Transport
Define the following terms:
Active transport
Adenosine triphosphate (ATP)
Sodium-potassium pump
Bulk transport
Endocytosis
Phagocytosis
Pinocytosis
Unit 1 – Homeostasis & Cell Biology
Biology 30S
Pseudopods
Phagocytotic vesicle
Pinocytotic vesicle
Exocytosis
Secretory vesicle
Unit 1 – Homeostasis & Cell Biology
Biology 30S
Unit 1 – Homeostasis & Cell Biology
Questions
1.
(a)
Describe one similarity and two differences between facilitated diffusion
and active transport.
(b)
Name one substance that is actively transported through the cell membrane
of an animal cell.
2.
3.
4.
5.
A
B
C
Describe the two types of endocytosis.
Contrast endocytosis with exocytosis.
(a) What cellular process is illustrated in Figure 10?
(b) Identify the names of the labelled components.
(c)
What role may lysosomes play in this process?
5.
What would happen to the size of the cell membrane if a cell were to
undergo a lot of endocytosis and no exocytosis?
List two substances that cells export to the extracellular fluid by exocytosis.
6.
7.