Warm Up 1. Complete the “K” section of the KWL chart about what you already know about cells. Think about what you’ve heard on the news and in other classes. You may write down what you know in bulleted notes. 2. In the next blank page of your notebooks, write at the top KWL chart. You will be asked to cut and paste this chart into your notebook tomorrow.
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Warm Up 1.Complete the “K” section of the KWL chart about what you already know about cells. Think about what you’ve heard on the news and in other classes.
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Warm Up1. Complete the “K” section of the KWL chart
about what you already know about cells. Think about what you’ve heard on the news and in other classes. You may write down what you know in bulleted notes.
2. In the next blank page of your notebooks, write at the top KWL chart. You will be asked to cut and paste this chart into your notebook tomorrow.
K W L
What you already know What you want to learn What you have learned
Agenda• Warm-up• Objective: Students will be able to identify the
differences between prokaryotic and eukaryotic cells
• Notes on introduction to cells• Read Article• Complete Chart• Draw a Prokaryotic Cell• Exit Ticket• Complete “W” section and turn in KWL chart
Directions• You do not need to write down what is on each
slide word for word• I have underlined and put in bold the information
that I expect you to write in your notebooks• I encourage you to find ways to shorten words or
abbreviate. Examples:– “Something” s.t.– “The cell is the most basic unit of life”
cell = basic unit of life
a. A theory is a well tested hypothesis that can explain a broad range of observations
b. The cell theory applies to all living things
c. The cell theory has three main Principles
I. Cell theory
Principle # 1All organisms are made of one or more cells.– Some organisms are made up of just one cell – Others are multicellular or made up of many
cells
The cell is the most basic unit of life.
Principle # 2
Principle # 3
All cells are produced by preexisting cells.
II. All Cells
A. Tend to be microscopic
B. Have a few key STRUCTUREs:i. are enclosed
by a membrane.
ii. are filled with cytoplasm.
iii. Contain genetic
material
Bacterium(colored SEM; magnification 8800x)
cell membrane
cytoplasm
III. Two types of CellsBoth types of cells contain the root word “karyose” which
refers to the nucleus
a. Prokaryotes– “Pro” means before– “Pro” + “karyose” = before a nucleus
b. Eukaryotes– “eu” means true– “Eu” + “karyose” = having a true nucleus
Read the article
• Answer the questions in your notebook as you read.
Copy the following chart
Prokaryotes Similarities Eukaryotes
IV. Prokaryotic CellsA. Are the most basic cellsB. Unicellular = made of one cellC. Contain simple STRUCTUREs
– Cell membrane– cytoplasm– genetic material (DNA) just floats around
in the cell– Organelles, like ribosomes, that do not
Review• Virus enters the body through one of our passageways• Proteins on virus must match up with proteins on surface
of a cell in order to trick the cell into allowing it inside• Genetic information of virus is encoded into cell’s genetic
material• Host cell makes a copy of the virus during protein
synthesis• Newly made viruses burst through the cell membrane,
causing cell death
Virus Cycle
Draw a Prokaryotic CellLabel each of the parts below
Exit TicketDirections: Take out a half sheet of paper and write your name, date
and period at the top.
1. What are 3 differences between plant and animal cells?
2. What happens after viruses are assembled in a cell ?
3. Do you think that viruses are living or nonliving? Explain your answer with evidence and complete sentences.
Warm-Up1. What is one characteristic of living things
that a virus CANNOT do?
2. Write down two questions that you have about the material before taking the quiz. These questions could be to explain the function of an organelle or what you need to know about plant cells.
Agenda• White Board Practice• Quiz• Start Reading Guide• Planet Earth
– Pay attention so that you can learn some of the ecology concepts that you will need for the CST
White Board Directions• Use the color marker that you receive• Only write answers to the questions on the
board– If I see you writing notes or doodling, I will take the
white board away and you will have to turn in the answers on a sheet of paper.
• Please close the marker caps when you are not using them
Plant and animals cells are examples of type of cell?
Name the organelle: I package and ship proteins to
organelles and other cells.
Name one reason why viruses are NOT considered alive?
What is the organelle
labeled C?
What is the organelle
labeled A?
What is the organelle labeled I ?
What is the organelle
labeled F ?
Based on its shape, what type of cell is
this?
___________ are specialized structures in cells that have
important jobs.
Where are proteins made in a cell?
Which organelle serves as the cleaning crew for the cell?
What does the mitochondrion do?
What are three things that ONLY plant cells have?
The cell membrane is mostly made up of which
biomolecule?
a. Carbohydrates
b. Lipids
c. Proteins
d. Nucleic Acids
Which organelle is small in animal cells and large in plant
cells?
Bacteria is an example of what type of cell?
What does a eukaryotic cell have that prokaryotic cells and
viruses do NOT?
What is the gooey substance that all the organelles float in?
Planet Earth questions• Every part of planet Earth is touched by the ____________.• In which month does the sun hit the Arctic? _____________.• The mother Polar Bear goes ________ months without food?
__________• Caribou herds can travel up to __________ miles during their
journey.• What produces so much Oxygen that it changes the atmosphere?
High elevation ____________• The world’s rarest cat is the _________ Leopard, found in Russia.• The rainforest covers only ___% of the Earth but contains more than
____ of its plants and animals.
Warm-up1. Why do animal cells not have a
chloroplast? Answer in complete sentences.
2. Why do you think plant cells have a square-like shape?
Comparing Cells Lab• Agenda
– Go over parts of a microscope– Fill in Microscope handout– Model how to make a wet mount slide and lab
directions– Complete Lab and Lab handout– Discuss results
Making a Wet Mount Slide1. Get a clean __________ and ______________ from
your teacher.
2. Be careful with ____________________ because it can stain your clothing or irritate your skin.
3. Place _____ drops of water in the middle of the slide. If there is too much water, the coverslip will not hold the cells in place.
4. Place one _______ of the coverslip just outside the water on the slide.
5. Slowly _____________ the coverslip on top of the water.
Making a Wet Mount Slide6. Pick up the slide with ________ _________. Place the
slide on the ___________ and view it first with the ________ objective. Once you see a general image of the cells, you can rotate the _______________ to view the slide with different objectives.
7. When you’re done viewing one slide, carefully take it off the _________ with ________ __________.
8. After viewing all of the slides, clean off both the ________________ and _________ with water and ________ them down with paper towels.