Download CELL FEATURES (SECTION 3-2)

Name: ____________________________________________
Period: ______
Cell Features Note Outline – Chapter 3 section 2
The Development of the Cell Theory - History
 Robert Hooke (1665)
 Anton van Leeuwenhoek (1675)
 Mattias Schleiden (1838)
 Theodor Schwann (1839)
 Rudolph Virchow (1858)
These Observations lead to the Cell Theory which has three parts:
1. All living things are made of ________________________ cells.
2. Cells are the ________________ of ________________and
_______________ in organisms.
3. All cells arise from _______________ cells.
Why must cells be small?
 __________________ cells in the body
 cells surface-area to volume ratio must be _________________
 small cells can exchange substances _______________
Relationship Between Surface Area and Volume
Cell Feature Notes
Name: ____________________________________________
Period: ______
Common Cell Features to ALL Cells
1. cell membrane (Plasma membrane)
-regulates what _____________ and _____________ the cell (gases,
nutrients, wastes)
2. cytoplasm
-houses the ________________ of the cell.
3. cytoskeleton
-microscopic ______________ that give the cell _______________
4. ribosomes
-where ________________ are made in the cell
5. DNA
-_______________ all cellular activities
Prokaryotes
-__________________ celled organism
-no _________________, no internal compartments
-Early prokaryotes lived __________________ years ago
-Modern prokaryotes are ________________
-Bacteria cell parts
cell wall (composed of ____________________ &
_________________)
plasma membrane
Flagella – enables __________________
DNA – in _______________ ring
capsule – enables it to _____________ to almost anything
Cell Feature Notes
Name: ____________________________________________
Period: ______
Draw Prokaryotic cell here:
Eukaryotes
-Includes all _____________ and ________________ cells
-Can be a ____________ celled organism or ________________
made up of many cells.
-Some have ____________ or ______________ for movement
-Has a nucleus, and internal compartments called ___________
-Organelle “_________ __________” – carry out specific activities
Organelles can be divided into groups based on the functions they
carry out in the cell:
Organelles for making ______________
Organelles for _________________ the cell
Organelles for ______________ ____________ for the cell
Organelles for ______________ down and _____________ wastes
Cell Feature Notes
Name: ____________________________________________
Period: ______
Organelles for making Proteins in the cell include:
Nucleus - __________________________
ER – smooth and rough - _______________________
Ribosomes - __________________________
Golgi Apparatus - ____________________________
Organelles for supporting the cell include:
Cell Membrane - ___________________________
Microtubules- _________________________
Microfilaments - ___________________________
Cell Wall (plant cell) - ________________________
Organelles that produce energy for the cell include:
Mitochondria - _________________________
Chloroplast (plant cell) - _______________________
Organelles that breakdown & store wastes products of the cell:
Lysosomes - ___________________________
Vesicles - _______________________________
Central Vacuole (plant cell) - __________________________
Cell Feature Notes
Name: ____________________________________________
Period: ______
Cell Membrane
-_________________ permeable
-Made up of phospholipids (2 fatty acids bonded to a phosphate)
Draw Phospholipid:
- Form a _____________ _______________
-polar heads that are ______________ (interact with water)
-nonpolar tails that are _________________ (repel water)
Draw the lipid bilayer:
Because of this some molecules are able to pass directly though the cell
membrane and other need to travel though a protein embedded in the
membrane.
Proteins _____________ in the membrane have different function:
-Cell-surface ____________ (carbohydrate & protein) – help other
cells _______________ their cell types
-______________ Protein – recognize and bind ____________
substances the cell needs
-______________ – involved in important reactions in the cell
-Transport Protein – aid the movement of substances ____________
and _____________ the cell that can’t go directly through the cell
membrane
Cell Feature Notes