Download Chapter 3-1 Cornell Notes Discovering Cells

(7th) Chapter
3-1 Cornell
Notes
Discovering Cells
(7th) Chapter 3-1 Cornell Notes
Key Questions
1. What are cells?
2. What is the cell theory?
Chapter 3-1: Key Terms
• cell• cell theory• unicellular-
•
•
•
•
multicellulartissueorganorgan system-
Chapter 3-1
Part 1
• cells: units of
structure and function
in living things;
• most cells microscopic.
Chapter 3-1 Part 2
• microscope: now possible to
observe/study cells;
• Robert Hooke: coined the term “cells”;
• Anton van Leeuwenhoek: studied cells,
coined term “animacules”.
Chapter 3-1 Part 3
1. Matthias Schleiden: all plants made of cells;
2. Theodor Schwann: all animals made of cells;
• 3. Rudolf Virchow: new cells come from old cells;
1, 2, 3 + others formed cell theory;
cell theory:
1. All living things made of cells;
2. Cells basic unit of structure and function;
3. All cells produced from other cells.
Chapter 3-1 Part 4
unicellular: composed of only 1 cell;
• multicellular: composed of many cells.
Chapter 3-1 Part 5
multicellular organisms:
cells to tissues to organs
to organ systems;
• tissue: group of similar cells working
together for specific function;
• organ: made of different kinds of tissues
working together for specific functions;
• organ systems: group of organs working
together for specific functions.