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Complete Do Now Silently & Independently
1. Follow the entrance procedure.
2. Have your homework in the top right corner to be check
3. Begin working on your Do Now Silently
DO NOW- Silently & Independently
• 1. What are the three principles of cell theory?• 2. What did you find out with your research?
• **have homework out on your desk to be checked**
Objectives/Why does this matter?
• EQ: are there different types of cells?
• Objective: We will be able to use a Venn Diagram in order identify the key organelles and in eukaryotes and prokaryotes.
Updates
• Mid unit exam 1 covering cell theory, prokaryotes, and eukaryotes
• Binder set up will occur next time because we still have people without binders.
What are organelles?
A specialized part of a cell with a specific function
Mini “organs” of a cell.
All Cells
- Are enclosed by a cell membrane.- Are filled with cytoplasm.- Have ribosomes- Have DNA (genetic material)
Bacterium(colored SEM; magnification 8800x)
cell membrane
cytoplasm
Common features of all cells
1. Cell Membrane – Outer layer that controls what
enters & exits the cell
Prokaryotes Eukaryotes
Fill in the middle part of the diagram with your partner. 1 minute silently and independently (must have at least 4 traits listed)
Nucleusa. DEFINITION: – Control center of the cell– the “brain”
b. FUNCTION: -Stores all DNA
Nucleus
– Eukaryotic cells • Have a nucleus• Have organelles• Are larger in size• More complex
structure• Multicellular
nucleus
cell membrane
organelles
cytoplasm
Eukaryotes
–Prokaryotic cells • No nucleus• No organelles• Smaller in size• Simple structure• Unicellular
nucleus
cell membrane
organelles
cytoplasm
Prokaryotes
One way to remember the difference
• Prokaryote – Prokaryote has no nucleus
•PRO has NO
• Eukaryote– Eukaryote has true nucleus
•EU has TRUE
Prokaryotes Eukaryotes
Fill in the left and right parts of the diagram with your partner using a volume 1 voice.(must have at least 5 traits listed for each)
Prokaryotes Eukaryotes
• Cell Membrane• Cytoplasm• DNA
• Ribosomes
•No Nucleus•No organelles• Smaller in size• Simple •Unicellular
organisms
•Nucleus present•Has organelles• Bigger in size•More complex•Multicellular
organisms
Homework
• Complete your Venn Diagram from class (if not completed)
• Eukaryotic vs. Prokaryotic Sheet • Study for you test
EOC Practice Question•The diagram shows a drawing of a cell.
Which cellular component identifies the cell shown as a eukaryotic cell?EXPLAIN your answer.a. Nucleusb. Ribosomec. Cytoplasmd. Cell membrane
EOC Practice Question
• A student is assigned to determine whether a particular microbe is eukaryotic or prokaryotic. Which procedure is best suited to completing this assignment?– Measuring the amount of oxygen released using
a sensor– Examining the DNA sequence of the microbes– Measuring the microbes using a micrometer– Examining the microbes under a microscope
Extra Questions to Consider
• 1. Which characteristics do all prokaryotic and eukaryotic cells have in common?
• A. cell wall B. nucleus C. cell membrane D. organelles• 2. Which characteristic is NOT common to both
prokaryotic and eukaryotic cells?• A. cytoplasm B. reproduction C. nucleus D. cell membrane
• 3. In general eukaryotic cells are…• A. smaller than prokaryotic cells B. larger than prokaryotic cells• C. about the same size D. visible to the unaided eye