Question

match the term with its correct description:
a. energy
b. facilitated diffusion
c. endocytosis
d. passive transport
e. active transport
f. exocytosis
g. carrier protein
h. channel protein

______ transport protein that provides a tube - like opening in the plasma membrane through which particles can diffuse
______ is used during active transport but not passive transport
______ process by which a cell takes in material by forming a vacuole around it
______ particle movement from an area of higher concentration to an area of lower concentration
______ process by which a cell expels wastes from a vacuole
______ a form of passive transport that uses transport proteins
______ particle movement from an area of lower concentration to an area of higher concentration
______ transport protein that changes shape when a particle binds with it

match the term with its correct description:
a. transport protein
b. active transport
d. passive transport
e. osmosis
g. exocytosis

Explanation:

1. A channel protein provides a tube - like opening in the plasma membrane for particle diffusion.
2. Energy is used during active transport but not passive transport.
3. Endocytosis is the process by which a cell takes in material by forming a vacuole around it.
4. Passive transport is particle movement from an area of higher concentration to an area of lower concentration.
5. Exocytosis is the process by which a cell expels wastes from a vacuole.
6. Facilitated diffusion is a form of passive transport that uses transport proteins.
7. Active transport is particle movement from an area of lower concentration to an area of higher concentration.
8. A carrier protein changes shape when a particle binds with it.

Answer:

1. h. channel protein
2. a. energy
3. c. endocytosis
4. d. passive transport
5. f. exocytosis
6. b. facilitated diffusion
7. e. active transport
8. g. carrier protein