Download - Day 1 Sec 7.1—The Discovery of Cells
Day 1Sec 7.1—The
Discovery of Cells
CATALYST• Make 2 columns on your sheet Everything you know about cells Everything you want to know about
cells
5 minutes
CATALYST• Make 2 columns on your sheet Everything you know about cells Everything you want to know about
cells
4 minutes
CATALYST• Make 2 columns on your sheet Everything you know about cells Everything you want to know about
cells
3 minutes
CATALYST• Make 2 columns on your sheet Everything you know about cells Everything you want to know about
cells
2 minutes
CATALYST• Make 2 columns on your sheet Everything you know about cells Everything you want to know about
cells
1 minutes
AGENDA1. Bell Ringer
2. Announcements
3. Lab Pass Back
4. Intro to Cells
ANNOUCEMENTSTest on Friday!!!
Review on Thursday!
Objectives: SWBAT:
□ Distinguish between prokaryotic and eukaryotic cells.
□ Identify the main ideas of the cell theory.
1673-___________________________________a Dutch microscope maker was the first to see LIVING ORGANISMS.
Anton van Leeuwenhoek
1665-______________________used a microscope to examine a thin slice of cork,dead cells of oak bark and saw “little boxes”
He called them “CELLS” because they looked like the small rooms that monks lived in called Cells
Robert Hooke
THE CELL THEORY
Cells are the basic building blocks of all living things.
________ __________ ___________ATOMS MOLECULES ORGANELLES
____________ ____________ CELLS TISSUES
Similar cells working together
___________ __________ ___________ORGANS
ORGAN SYSTEMS ORGANISM
Different tissuesworking together
Different organsworking together
1. All organisms are made of one or more cells.
THE CELL THEORY
2. Cells are the basic unit of structure, organization, and function of organisms.
THE CELL THEORY
3. All cells come from preexisting cells.
THE CELL THEORY
CELL THEORY1. All living things are ________________________.
2. Cells are the basic unit of
____________ & _____________ in an organism.
(cell = basic unit of _____________)
3. Cells come from the reproduction
of ____________ cells
MADE OF 1 or MORE CELLS
existing
life
STRUCTURE FUNCTION
The Cell Theory
Fill out the cell theory chart!!!
All living things made of cells BUT… organisms can be very different.
UNICELLULAR
MULTICELLULAR
Insert into Notes
• Unicellular
• Multicellular
• Made of one cellExample: bacteria
• Made of more than one cellExample: plants and animals
Partner ReadProkaryotes are unicellular organisms, found in all environments. Prokaryotes are the largest group of organisms, mostly due to the vast array of bacteria which comprise the bulk of the prokaryote classification. Eukaryotes are generally more advanced than prokaryotes. There are many unicellular organisms which are eukaryotic, but all cells in multi-cellular organisms are eukaryotic. 1. Which type of cell are humans composed of? How do you know?
You will have 5 minutes to answer the question on the next
slide
Partner ReadProkaryotes are unicellular organisms, found in all environments. Prokaryotes are the largest group of organisms, mostly due to the vast array of bacteria which comprise the bulk of the prokaryote classification. Eukaryotes are generally more advanced than prokaryotes. There are many unicellular organisms which are eukaryotic, but all cells in multi-cellular organisms are eukaryotic. 1. Which type of cell are humans composed of? How do you know?
55minutesminutes
Partner ReadProkaryotes are unicellular organisms, found in all environments. Prokaryotes are the largest group of organisms, mostly due to the vast array of bacteria which comprise the bulk of the prokaryote classification. Eukaryotes are generally more advanced than prokaryotes. There are many unicellular organisms which are eukaryotic, but all cells in multi-cellular organisms are eukaryotic. 1. Which type of cell are humans composed of? How do you know?
44minutesminutes
Prokaryotes are unicellular organisms, found in all environments. Prokaryotes are the largest group of organisms, mostly due to the vast array of bacteria which comprise the bulk of the prokaryote classification. Eukaryotes are generally more advanced than prokaryotes. There are many unicellular organisms which are eukaryotic, but all cells in multi-cellular organisms are eukaryotic. 1. Which type of cell are humans composed of? How do you know?
33minutesminutes
Partner Read
Partner ReadProkaryotes are unicellular organisms, found in all environments. Prokaryotes are the largest group of organisms, mostly due to the vast array of bacteria which comprise the bulk of the prokaryote classification. Eukaryotes are generally more advanced than prokaryotes. There are many unicellular organisms which are eukaryotic, but all cells in multi-cellular organisms are eukaryotic. 1. Which type of cell are humans composed of? How do you know?
22minutesminutes
Partner ReadProkaryotes are unicellular organisms, found in all environments. Prokaryotes are the largest group of organisms, mostly due to the vast array of bacteria which comprise the bulk of the prokaryote classification. Eukaryotes are generally more advanced than prokaryotes. There are many unicellular organisms which are eukaryotic, but all cells in multi-cellular organisms are eukaryotic. 1. Which type of cell are humans composed of? How do you know?
11minuteminute
Partner ReadProkaryotes are unicellular organisms, found in all environments. Prokaryotes are the largest group of organisms, mostly due to the vast array of bacteria which comprise the bulk of the prokaryote classification. Eukaryotes are generally more advanced than prokaryotes. There are many unicellular organisms which are eukaryotic, but all cells in multi-cellular organisms are eukaryotic. 1. Which type of cell are humans composed of? How do you know?
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Partner ReadProkaryotes are unicellular organisms, found in all environments. Prokaryotes are the largest group of organisms, mostly due to the vast array of bacteria which comprise the bulk of the prokaryote classification. Eukaryotes are generally more advanced than prokaryotes. There are many unicellular organisms which are eukaryotic, but all cells in multi-cellular organisms are eukaryotic. 1. Which type of cell are humans composed of? How do you know?
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Partner ReadProkaryotes are unicellular organisms, found in all environments. Prokaryotes are the largest group of organisms, mostly due to the vast array of bacteria which comprise the bulk of the prokaryote classification. Eukaryotes are generally more advanced than prokaryotes. There are many unicellular organisms which are eukaryotic, but all cells in multi-cellular organisms are eukaryotic. 1. Which type of cell are humans composed of? How do you know?
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Partner ReadProkaryotes are unicellular organisms, found in all environments. Prokaryotes are the largest group of organisms, mostly due to the vast array of bacteria which comprise the bulk of the prokaryote classification. Eukaryotes are generally more advanced than prokaryotes. There are many unicellular organisms which are eukaryotic, but all cells in multi-cellular organisms are eukaryotic. 1. Which type of cell are humans composed of? How do you know?
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Partner ReadProkaryotes are unicellular organisms, found in all environments. Prokaryotes are the largest group of organisms, mostly due to the vast array of bacteria which comprise the bulk of the prokaryote classification. Eukaryotes are generally more advanced than prokaryotes. There are many unicellular organisms which are eukaryotic, but all cells in multi-cellular organisms are eukaryotic. 1. Which type of cell are humans composed of? How do you know?
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Partner ReadProkaryotes are unicellular organisms, found in all environments. Prokaryotes are the largest group of organisms, mostly due to the vast array of bacteria which comprise the bulk of the prokaryote classification. Eukaryotes are generally more advanced than prokaryotes. There are many unicellular organisms which are eukaryotic, but all cells in multi-cellular organisms are eukaryotic. 1. Which type of cell are humans composed of? How do you know?
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Partner ReadProkaryotes are unicellular organisms, found in all environments. Prokaryotes are the largest group of organisms, mostly due to the vast array of bacteria which comprise the bulk of the prokaryote classification. Eukaryotes are generally more advanced than prokaryotes. There are many unicellular organisms which are eukaryotic, but all cells in multi-cellular organisms are eukaryotic. 1. Which type of cell are humans composed of? How do you know?
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Partner ReadProkaryotes are unicellular organisms, found in all environments. Prokaryotes are the largest group of organisms, mostly due to the vast array of bacteria which comprise the bulk of the prokaryote classification. Eukaryotes are generally more advanced than prokaryotes. There are many unicellular organisms which are eukaryotic, but all cells in multi-cellular organisms are eukaryotic. 1. Which type of cell are humans composed of? How do you know?
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Partner ReadProkaryotes are unicellular organisms, found in all environments. Prokaryotes are the largest group of organisms, mostly due to the vast array of bacteria which comprise the bulk of the prokaryote classification. Eukaryotes are generally more advanced than prokaryotes. There are many unicellular organisms which are eukaryotic, but all cells in multi-cellular organisms are eukaryotic. 1. Which type of cell are humans composed of? How do you know?
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Partner ReadProkaryotes are unicellular organisms, found in all environments. Prokaryotes are the largest group of organisms, mostly due to the vast array of bacteria which comprise the bulk of the prokaryote classification. Eukaryotes are generally more advanced than prokaryotes. There are many unicellular organisms which are eukaryotic, but all cells in multi-cellular organisms are eukaryotic. 1. Which type of cell are humans composed of? How do you know?
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TIMES UP!!!!
TIME TO SHARE
ANSWERS!
ReadAloud—pg 173Two Basic Cell Types
Cells that do not contain internal membrane-bound structures are called
prokaryotic cells.
• The cells of most unicellular organisms such as bacteria do not have membrane bound structures and are therefore called prokaryotes.
Two Basic Cell TypesTwo Basic Cell Types
A prokaryotic cell does not have internal organelles surrounded by a membrane. Most of a prokaryote’s metabolism takes place in the cytoplasm.
1. Ribosomes
2. DNA 3. Plasma membrane
4. Cell wall
Cells that do not contain any membrane-bound organelles.
Example: bacteria
Prokaryotes
Take Notes!Topic: Cells
• Most of the multi-cellular plants and animals we know are made up of cells
containing membrane-bound structures and are therefore called eukaryotes.
Cells containing membrane-bound structures are called eukaryotic cells.
Two Basic Cell TypesTwo Basic Cell Types
This eukaryotic cell from an animal has distinct membrane-bound organelles that allow different parts of the cell to perform different functions.
4. Plasma membrane
1. Nucleus
2. Nucleolus
3. Chromosomes
5. Organelles
Cells that contain membrane-bound organelles.
Examples: amoebas, algae, yeast, animals, plants.
Eukaryotes
Take Notes!Topic: Cells
The membrane-bound structures within eukaryotic cells are called organelles.
• Each organelle has a specific function that contributes to cell survival.
EUKARYOTIC CELLS
Human Cell
Eukaryotic cells are generally one to one hundred times bigger than prokaryotic cells.
Eukaryotes
Prokaryotes Both
Fill out the diagram using your notes and the text book!!!!
Prokaryotes• NO membrane-bound organelles• cell walls• most are unicellular• DNA floats freely around• small (.001 - .01mm)
Both:• cytoplasm• DNA as genetic material• ribosomes•Cell membrane•CELLS
Eukaryotes•nucleus & membrane-bound organelles• some have cell walls• most are multi-cellular• large (.01 - .1mm)
The Cell Theory
Fill out the cell theory chart!!!
Eukaryotes
Prokaryotes Both
Fill out the diagram using your notes and the text book!!!!
Prokaryotes• NO membrane-bound organelles• cell walls• most are unicellular• DNA floats freely around• small (.001 - .01mm)
Both:• cytoplasm• DNA as genetic material• ribosomes•Cell membrane•CELLS
Eukaryotes•nucleus & membrane-bound organelles• some have cell walls• most are multi-cellular• large (.01 - .1mm)
Cells
Day 2Sec 7.2—The Plasma
Membrane
Section Focus Transparency 15
DTQ
Announcements:• Books assigned—see me after class to get
yours
• Turn in homework!
• Makeup quiz
Agenda:• Review microscopes, cell theory,
eukaryotes, prokaryotes
• BrainPop—Cells
Popcorn Reading—Sec 7.2
The Plasma Membrane: pg 175 – 178
IF TIME
Homework
Reading & Vocab:
New Vocab words to add to foldable:
• plasma membrane
• selective permeability
• phospholipid
• fluid mosaic model
• transport proteins
CELL SIZE
Typical cells range from: 5 – 50 micrometers (microns) in diameter
http://facstaff.bloomu.edu/gdavis/links%20100.htm
How big is a micron ( µ ) ?
1 cm = 10,000 microns 1” = 25,000 microns
MULTICELLULAR ORGANISM don’t just contain MANY CELLS.
Image from: http://www.isscr.org/images/ES-cell-Fig-2.jpg
They have different kinds of cells doing different jobs
Cells in a multi-cellular organism become SPECIALIZED by turning different genes on and off Image from: http://www.ncu.edu.tw/~ls/graph/faculty_pictures/whole_time/SLC/SLC_lab-1.jpg
Cell Specialization =DIFFERENTIATION
SPECIALIZED ANIMAL CELLSMuscle cells
Red blood cells
Cheek cells
Specialized Plant cells
Guard cells
Xylem cells
Pollen
Get your Biology Book!
Responsibilities & Expectations:1. Keep it in a SAFE place (at home)—DO NOT LOSE IT!*you do not need to bring it to class (for now) unless I tell you to*if it’s lost or stolen you will owe a LOT of money!*Harper teachers/staff will track you down!*You MUST have the same number at the end of the year as the one you get today, in other words, turning in ANY book at the end of the year doesn’t cut it… it MUST BE YOURS!2. Do not write on it, rip any pages, or damage it in any way3. USE IT!—Every time you open it up, your grade will improve!