Page 96 - Science Course 1 (Book 1)

Mo3-L5: Vocabulary Review

Directions: Write the correct term in the boxes to the right of each definition. Then use the letters in the
numbered boxes to spell a seventh term.
active transport diffusion endocytosis exocytosis facilitated diffusion
osmosis passive transport

1. occurs with the help of transport proteins

2. movement through a cell’s membrane without
using the cell’s energy

3. movement through a cell’s membrane that
requires energy

4. when a vesicle releases its contents outside of a cell

5. movement of substances from higher to lower
concentration

6. diffusion of water molecules

7. is the process during which a cell takes in a
substance by surrounding it with the cell membrane.

Mo3-L5: Key Concept Organizer

Directions: On each line, write the term from the word bank that correctly completes each sentence. Each
term is used only once.

A. semipermeable E. osmosis I. channel proteins

B. passive transport F. facilitated diffusion J. active transport
C. diffusion G. transport proteins K. endocytosis
D. equilibrium H. carrier proteins L. exocytosis

1. the movement of substances from an area of higher concentration to an area of
lower concentration
2. transport proteins that carry large molecules, such as sugar molecules, through a cell
membrane.

89