Cells and Life Content Practice A LESSON 1 The Cell Theory

Name
Date
Class
Content Practice A
LESSON 1
Cells and Life
Directions: Finish each sentence to complete the chart on cell theory.
The Cell Theory
1. Robert Hooke built a(n)
5. Rudolf Virchow proposed that all cells
more than 300 years ago.
.
2. Hooke saw tiny openings in cork and
named them
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
.
3. Schleiden and Schwann discovered
that all
are made of cells.
4. Schleiden and Schwann used
microscopes to determine that the cell
is the
of life.
Directions: Draw a line to connect each cell substance with its clue.
6. water
contain instructions
7. nucleic acids
has a positive and negative end
8. proteins
sugar is one
9. lipids
some help break down nutrients
10. carbohydrates
Cell Structure and Function
do not mix with water
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