1. 7.1 Introduction to Cells I. The Discovery of _______
A. ___________ led to the discovery of the basic _______ of _______
B. Robert___________
1. _________scientist, used crude ____ power _________ on ______ cells
2. _______ saw “little _______” he called ______
a. later saw cells in ______ & _____ of plants
C. Van________________
1. ________scientist, used microscope that could magnify to ______ times
2. discovered living ________ in ______ water.

2. D. ____________(German Botanist,1838)
1. concluded _____ make up every part of _________
E. ___________ (German Zoologist,1839)
1. concluded that ________ are made up of __________
F. ___________(German physician,1858)
1. proposed ______ come from existing_____
G. ______ Theory
1. All _________ things are made up of _____ or more _______
2. Cells are the basic unit of __________ & _____________ in organisms
3. All ________ arise from existing ______

3. II. Looking at ________
A. Cells vary greatly in ______ & _________
B. Cell’s ________ reflects its __________
1. Can be branched, flat, round, or rectangular
C. Humans are made up of _______ trillion cells
III. Cell _____________
A. Cell __________
1. acts as a _________ to outside environment
B. __________
1. the ________ inside a cell
C. __________
1. includes the fluid and ___________
D. ___________
1. makes _____________

4. IV. _____________
A. No____________,
only single loop of DNA
B. only ______ on Earth for
millions of years
V. ______________
A. complex ____________
1. carry out specialized functions
B. Contains a nucleus with _____
C. Contains____________
1. structures that carry out _________ functions.