Bell Work
1-23-12
An experiment should be controlled because it
allows the scientist to test a
a. conclusion
b. a mass of information
c. several variables
d. a single variable
So what is a cell?
A Cell is…
The most basic unit of organization that can be
considered as life.
Original Cell Theory
http://www.bio.miami.edu/~cmallery/150/unity/cell.text.htm
Theodor Schwann and Matthias Schleiden , 1839
1) The cell is the unit of structure, physiology, and
organization in living things.
2) The cell retains a dual existence as a distinct
entity and a building block in the construction of
organisms.
3) Cells form by free-cell formation, similar to the
formation of crystals (spontaneous generation).
Cell Theory
Spontaneous Generation
was part of the original cell theory
Spontaneous Generation: http://www.chem.ox.ac.uk/vrchemistry/chapter26/page02.htm
Modern Cell Theory
1. All known living things are made up of cells.
2. The cell is the structural & functional unit of all living
things.
3. All cells come from pre-existing cells by division.
(Spontaneous Generation does not occur).
4. Cells contain hereditary information which is passed from
cell to cell during cell division.
5. All cells are basically the same in chemical composition.
6. All energy flow (metabolism & biochemistry) of life occurs
within cells.
70
There are 2 fundamental types of cells
There are 2 types of cells
http://www.phschool.com/science/biology_place/biocoach/cells/common.html
What are the two types of cells?
Two Types of Cells
http://www.biologymad.com/
http://www.cod.edu/people/faculty/fancher/ProkEuk.htm
http://www.phschool.com/science/biology_place/biocoach/cells/common.html
http://www.slic2.wsu.edu:82/hurlbert/micro101/pages/Chap2.html#Eukaryotic
http://www.cod.edu/people/faculty/fancher/CellStructure.htm
Cells Alive: http://www.cellsalive.com/cells/cell_model.htm
1. Prokaryotes
2. Eukaryotes
Life on Mars
http://www.actionbioscience.org/biodiversity/salyers2.html?print
Life on Jupiter’s Moon Europa?
What do you think?
History of the Universe
http://www.historyoftheuniverse.com/archaebact.html
There are 2 types of cells
Prokaryotic
Eukaryotic
Page 195
Page 195
Cell that lacks internal structures
surrounded by membranes.
Organisms that have cells containing
internal, membrane-bound structures.
Usually single-celled organisms.
Organelle: Each has its own membrane.
Nucleoli rather than nucleus
Kingdom Archaebacteria
Kingdom Monera (Eubacteria)
Kingdoms Protista, Plantae, Fungae,
Animalia.
Appeared 3.5 billion years ago
Evolved 1.5 billion years ago
Kingdoms and Cell Type
http://www.ric.edu/faculty/ptiskus/six_kingdoms/index.htm
http://www.britannica.com/EBchecked/topic/32547/archaea
http://faculty.ccbcmd.edu/courses/bio141/lecguide/unit1/3domain/3domain.html
Prokaryote – Eubacteria / Monera
Unicellular Prokaryotes
Archaebacteria: Found in extreme environments
Protista – The Protozoans
Eukaryotes
Euglena
Amoeba
Paramecium
Plant Cell / Eukaryote
Animal Cell / Eukaryote
Cell Parts
http://www.biology.arizona.edu/CELL_BIO/tutorials/pev/page3.html
www.cellsalive.com
http://www.johnkyrk.com/CellIndex.html
Plant Cell Coloring Sheet
http://www.biologycorner.com/worksheets/cell_color_plant.html
Animal Cell Coloring Sheet
http://www.biologyjunction.com/biology_coloring_worksheets.htm
Human Cell
http://www.crayola.com/free-coloring-pages/print/human-cell-coloring-page/
Take Notes and Color Your Cell
Animal Cell
1. Nucleolus: black
2. Nucleoplasm: pink
3. Nuclear Membrane:
dark brown
Plant Cell
Nucleolus: black
Nucleoplasm: pink
Nuclear Membrane:
dark brown
Chromatin: gray
Page 196-199
Define:
• Nucleus
• Nucleolus
• Nuclear Membrane
• Nucleoplasm
• Chromatin
Parts of a Cell
• Nucleus: the largest membrane bound
organelle; contains the cell’s DNA and
manages cell function.
• Nucleolus: Region within the nucleus that
produces ribosomes, which are involved in
protein synthesis
• Nuclear Membrane: The membrane of the
nucleus
Parts of a Cell
• Nucleoplasm: The fluid contained within the
nucleus of a eukaryote in which the
chromosomes and nucleoli are found.
• Chromatin: long tangled strands of DNA
found in the interphase nucleus of eukaryotic
cells.
Cell Function Review
Great Cells Alive
1-24-12
Finish Coloring
Finish Defining
Read 189 to 208
Page 212, 1-9
Write and answer the questions
Animal Cell
1. Smooth endoplasmic
reticulum: light blue
2. Ribosomes: red
3. Rough endoplasmic
reticulum: dark blue
4. Cell Membrane:
light brown
Plant Cell
1. Smooth endoplasmic
reticulum: light blue
2. Ribosomes: red
3. Rough endoplasmic
reticulum: dark blue
4. Chloroplast: light green
5. Cell Membrane:
light brown
Page 196-199
Define:
• Ribosomes
• Smooth Endoplasmic Reticulum
• Rough Endoplasmic Reticulum
• Chloroplast
• Cell Membrane
Parts of a Cell
• Ribosomes: Eukaryotic organelles involved in
protein synthesis
• Smooth Endoplasmic Reticulum: folded,
complex system of membranes forming a type
of transport system in the cytoplasm of
eukaryotic cells. No ribosomes.
• Rough Endoplasmic Reticulum: with
ribosomes
Parts of a Cell
• Chloroplast: chlorophyll containing organelle
found in green plants and some protists; site
where light energy is converted into chemical
energy, which is stored in food molecules
Cell Membrane: found in plant and animal cells;
also called the plasma membrane. Serves as
the boundary between the cell and its
external environment and allows materials
such as oxygen and nutrients to enter and
waste products to leave.
Animal Cell
1. Microtubules: dark
green
2. Lysosomes: pink
3. Mitochondria: dark
brown
4. Golgi Apparatus:
pink
5. Flagella: red and
blue striped
Plant Cell
1. Mitochondria:
dark brown
2. Golgi Apparatus:
pink
3. Vacuole:
light blue
Page 196-199
Define:
1. Microtubules
2. Lysosomes
3. Mitochondria
4.Golgi Apparatus
5.Flagella
6.Vacuole
Parts of a Cell
• Microtubules: hollow, thin, protein cylinders
found in the cytoskeleton of eukaryotic cells;
important in cell structure and locomotion
• Lysosomes: membrane bound organelles
containing enzymes that digest food particles,
viruses, bacteria, worn-out cell parts, and
sometimes the cell itself
Parts of a Cell
• Mitochondrion: Eukaryotic membrane-bound
organelle in which food molecules are broken
down to produce ATPs; containing highly
folded inner membrane that produces energystoring molecules
• Golgi Apparatus: membrane sacs that receive,
chemically modify, and repackage proteins
into forms the cell can use, expel, or keep
stored
Parts of a Cell
• Flagella: long, threadlike structures composed
of microtubules, project from within the
plasma membrane and propel cells and
organisms by a whip like motion
• Vacuole: membrane-bound, fluid-filled space
within the cytoplasm; temporarily stores food,
enzymes, and wastes
Chapter 7
Finish Coloring
Finish Defining
Read 189 to 208
Write and answer the questions
Page 212, 1-9
You Tube Cell Videos
• http://www.youtube.com/watch?v=BTicXXxzQ
A4,
http://www.youtube.com/watch?v=rABKB5aS
2Zg&feature=related,
http://www.youtube.com/watch?v=zafJKbMPA8&feature=related,
http://www.youtube.com/watch?v=LP7xAr2F
DFU&feature=related
Congratulations!
• Enjoy this crossword puzzle.
http://education.jlab.org/sciencecrossword/ce
ll_structures_01.pdf
http://go.hrw.com/resources/go_sc/bpe/HL1RC
ELV.PDF