Upload
alta
View
47
Download
5
Tags:
Embed Size (px)
DESCRIPTION
Ch 7-1 & 7-2: Life is Cellular. Notes #8. What is the Cell Theory?. Cells are the basic unit of life. All cells come from pre-existing cells. 3. All organisms are made of cells. Common Cell Structures. 1. Cell Membrane. 2. Nucleus. 3. Cytoplasm. Common Cell Structures. - PowerPoint PPT Presentation
Citation preview
Ch 7-1 & 7-2: Life is Cellular
Ch 7-1 & 7-2: Life is Cellular
Notes #8Notes #8
What is the Cell Theory?What is the Cell Theory?
1. Cells are the basic unit of life. 2. All cells come from pre-existing cells.
1. Cells are the basic unit of life. 2. All cells come from pre-existing cells.
3. All organisms are made of cells.
Common Cell StructuresCommon Cell Structures
Cell Membrane
Cytoplasm
Nucleus
1.
2.
3.
Common Cell StructuresCommon Cell Structures
1. Cell Membrane: Thin flexible barrier that surrounds a cell.
2. Nucleus: Present in some cells that contains DNA and controls cell activity.
3. Cytoplasm: Gel-like material within the cell, that keeps cell parts in place
1. Cell Membrane: Thin flexible barrier that surrounds a cell.
2. Nucleus: Present in some cells that contains DNA and controls cell activity.
3. Cytoplasm: Gel-like material within the cell, that keeps cell parts in place
General Cell TypesGeneral Cell Types• 2 Types1) Prokaryotes: Organisms that… -are single celled -do NOT contain membrane-
bound cell parts -do NOT have a nucleusEx. Bacteria
• 2 Types1) Prokaryotes: Organisms that… -are single celled -do NOT contain membrane-
bound cell parts -do NOT have a nucleusEx. Bacteria
2) Eukaryotes: Organisms that -have a nucleus -have membrane-bound cell partsEx. Plant and Animal Cells
2) Eukaryotes: Organisms that -have a nucleus -have membrane-bound cell partsEx. Plant and Animal Cells
Human Cheek Cells
Onion Cell
Prokaryotic vs Eukaryotic CellsProkaryotic vs Eukaryotic Cells
DNACell Wall
Cell MembraneRibosome
Flagellum
Prokaryotic Cell
Eukaryotic CellEukaryotic Cell
Prokaryotic CellProkaryotic Cell Eukaryotic CellEukaryotic Cell
What makes eukaryotic cells special?What makes eukaryotic cells special?• Unlike prokaryotic cells, all
eukaryotic cells have a membrane-bound nucleus, and specialized internal cell structures called organelles.
• Unlike prokaryotic cells, all eukaryotic cells have a membrane-bound nucleus, and specialized internal cell structures called organelles.
Common Structures in All Eukaryotic CellsCommon Structures in All Eukaryotic Cells• Nucleus: Contains DNA and controls the
cell’s activities -Chromatin: Tightly coiled strands of
DNA & protein found within the nucleus.• Nucleolus: Dense small region found
within the nucleus that makes ribosomes
• Nuclear Envelope: Controls what materials go in and out of the nucleus.
• Nucleus: Contains DNA and controls the cell’s activities
-Chromatin: Tightly coiled strands of DNA & protein found within the nucleus.
• Nucleolus: Dense small region found within the nucleus that makes ribosomes
• Nuclear Envelope: Controls what materials go in and out of the nucleus.
NucleusNucleus
Ribosomes (Free)Ribosomes (Free)• Makes protein for the cell to use• Makes protein for the cell to use
Endoplasmic Reticulum (ER)Endoplasmic Reticulum (ER)• Internal transport system of the cell- Rough ER: has ribosomes attached
& makes proteins to be exported out
of cell.- Smooth ER: no ribosome
attachment & makes lipids
• Internal transport system of the cell- Rough ER: has ribosomes attached
& makes proteins to be exported out
of cell.- Smooth ER: no ribosome
attachment & makes lipids
Endoplasmic ReticulumEndoplasmic Reticulum
Golgi ApparatusGolgi Apparatus• Pancake-like stacks that modifies
and packages proteins to be exported out of cell.
• Pancake-like stacks that modifies and packages proteins to be exported out of cell.
MitochondriaMitochondria• Makes cell energy (ATP) from food
(glucose) through cell respiration.• Makes cell energy (ATP) from food
(glucose) through cell respiration.
CytoskeletonCytoskeleton
• Helps support the cell and gives it shape
• Helps support the cell and gives it shape
Cytoskeleton
Found in Animal Cells OnlyFound in Animal Cells Only• Centrioles: Help cells reproduce• Centrioles: Help cells reproduce
Centrioles
Found in Animal Cells OnlyFound in Animal Cells Only• Lysosomes: Breaks down food,
wastes, and used organelles with digestive enzymes
• Lysosomes: Breaks down food, wastes, and used organelles with digestive enzymes
Digestive Enzymes
Found in Plant Cells OnlyFound in Plant Cells Only
• Cell Wall: Surrounds and protects the cell membrane.
• Cell Wall: Surrounds and protects the cell membrane.
Cell MembraneCell Wall
Found in Plants OnlyFound in Plants Only• Chloroplasts: Converts sunlight
energy into glucose by photosynthesis.
• Central Vacuole: Stores water, food, and waste for the plant cell
• Chloroplasts: Converts sunlight energy into glucose by photosynthesis.
• Central Vacuole: Stores water, food, and waste for the plant cell
• Two types of eukaryotic cells we have studied include animal & plant cell
• Two types of eukaryotic cells we have studied include animal & plant cell
Animal Cell Plant Cell
ClassworkClasswork
1) Workbook Section 7-1 & 7-2 (1-34)• ANSWERS ONLY (Stamped)2) Section AssessmentWrite out QUESTIONS & ANSWERS(7-1); #1-5 p. 172(7-2); #1-6 p 183
1) Workbook Section 7-1 & 7-2 (1-34)• ANSWERS ONLY (Stamped)2) Section AssessmentWrite out QUESTIONS & ANSWERS(7-1); #1-5 p. 172(7-2); #1-6 p 183
Double Bubble Thinking MapDouble Bubble Thinking MapCopy the following words on your paper
Then complete the Double Bubble Thinking Map
• Cell Membrane• Prokaryotic Cells• Cytoplasm• Contains membrane bound-
Organelles• Eukaryotic Cells• Contains a Nucleus• Contains DNA• Ex. Bacteria• Ex. Plant & Animal Cell
• Cell Membrane• Prokaryotic Cells• Cytoplasm• Contains membrane bound-
Organelles• Eukaryotic Cells• Contains a Nucleus• Contains DNA• Ex. Bacteria• Ex. Plant & Animal Cell
Double Bubble Thinking MapDouble Bubble Thinking MapYellow Bubbles: Things in Common; Grey: Unique to Cell
Double Bubble Thinking MapDouble Bubble Thinking MapYellow Bubbles: Things in Common; Grey: Unique to Cell
Prokaroytic Cells
EukaroyticCells