Ch 3 S1: The Diversity of Cells
Introduction:
-Cell: The ______unit that can perform all the processes necessary for ______.
Cells & The Cell Theory:
-______was the first person to see cells.
-Anton van Leeuwenhoek was the first to see ______, which he called animalcules, and ______.
-Matthias ______concluded that plant parts were composed of cells.
-Thedor Schwann concluded that ______were composed of cells.
-Rudolf ______stated that cells could form only from other cells.
-The Cell Theory was created by Schleiden, Schwann, & Virchow based off everyone’s observations. There are __ parts
- The cell is the ______unit of structure & function in ______living things.
- All organisms are composed of ______cells.
- All cells come from ______.
Cell Size:
-Cells, like a chicken egg, can be large because they ______have to take in nutrients.
-Most cells are ______because they must take in food and get rid of wastes.
-The area of a cell’s surface compared to its volume ______the cell’s size.
Parts of a Cell
-All cells have some parts in common.
- ______: protective layer that covers the cell’s surface and acts as a barrier.
- ______: the fluid inside a cell
- ______: structures that perform specific functions within a cell.
- ______: controls the activities of a cell; may be enclosed in the nucleus or free-floating
Two Kinds of Cells
-Prokaryote: Single-celled organism with ______
- PRO Means ______
-Eukaryote: Organism whose cells DO have a ______
Prokaryotes: Bacteria & Archaea
- Bacteria are the most common prokaryotes
- Three types of ______: heat-loving, salt-
loving, and methane-making
- heat-loving and salt-loving are called ______
- extremophiles are organisms that live in extreme conditions
Eukaryotic Cells & Eukaryotes
-Eukaryotic cells are the largest cells and are ______larger than most bacterial cells
-Have a Nucleus
-Most Eukaryotes are ______(ex: humans, plants, fungi)