Download 2015 cell notes

Name_____________________________________________________________________________ Per____
Notes: What is Living? & Cell Introduction
Characteristics of Life
All life has seven characteristics in common:
– Living things are made of cells. (ex.
– Living things maintain their internal environment. (ex.
– Living things pass on their traits. (ex.
– Living things perform chemical activities. This is known as metabolism. (ex.
– Living things grow and develop. (ex.
– Living things respond to a stimulus. (ex.
– Living things reproduce. (ex.
The Cell Theory
1. All _____________ things are ___________________ of cells.
2. Cells are the basic units of __________________ and ___________________ in living things.
3. ______ cells are produced from ________________ cells.
Cells Timeline
Robert Hooke (1665): studied cork; saw tiny, regular shaped “boxes”; called them _______.
Matthais Schleiden (1838)- All __________ are made of cells
Theodor Schwann (1839)- All ___________ are made of cells
Rudolf Virchow (1855)- Concluded _____________________________________________________________
Viruses & Disease
Viruses are 1/1000 to 1/10,000 the size of our cells.
What is a Virus? – classified as ______________________
1.
2.
3.
4.
Viruses consist of 2 structures:
1.
2.
Cell Types
There are two categories of cells:
Eukaryotic –
EX Prokaryotic -EX -
ENDOSYMBIOTIC THEORY
Two specific organelles have made Eukaryotic cells be the most successful….

Mitochondria –

Chloroplast -
These two organelles (______________________ and _______________________) are thought once be their own
prokaryotic cell living inside a larger host cell…….these “prokaryotes” provided nutrients/oxygen to the host and in turn
got a safe place to live. Eventually they became organelles and the “host” cell became a eukaryotic cell.


Chloroplast have DNA
Mitochondria have DNA
Plant vs. Animal Cells
Organelles found only in plants:
Organelles found only in animal cells:
Organelles- _____________________ structures in a cell that have a specific ___________________.