2A-1 Eukaryotic vs Prokaryotic (Intro to Class).

Download Report

Transcript 2A-1 Eukaryotic vs Prokaryotic (Intro to Class).

WELCOME TO MS. SIPIORA’S
BIOLOGY CLASS (RM 243)
Please find your name! It will be at your seat, facing your
chair.
If there are issues with your seat, please tell me after class.
If your name is incorrect, or you prefer a different name,
please write it clearly under the name on the card 
Good Morning!



As I ask for you to say your name loud and clearly,
please spell any changes to your name for me.
I want to make sure I pronounce your name
properly, it is important to me!
Again, any seat changes for medical reasons should
be brought to me after class.
Syllabus and Canvas


This is a slide to remind Ms.
S to tell you about both of
these things.
Here’s a picture of two
otters hugging 
Classroom Basics







Entering Class
Phones/Headphones
Getting your attention/After
Student Area/ Borrowing
Papers for the Day
Getting Table Supplies
Required Materials
Who is Ms. Sipiora?
Cornell Notes
• At the top, write the
Date, Essential
Question(s), and Answer
to today’s bellwork.
• Everyday you will have
5 minutes to complete
this 
• Draw a dividing line
down your paper and
leave a summary space
Monday, August 22
Topic: Introductions to Cells
Essential Question: How are cells organized to
create the diversity of life?
Bellwork: Write down the first five words you
think of when you see “Biology”. When you
finish, please raise your hand.
Reminder: Get a notebook!! Parent
Contact Form due Friday
INTRODUCTION TO CELLS
A.K.A. I know it’s the first day of class, but we’re going to get jump
started because today will still be super easy and Ms. S wants you to
feel confident that this class won’t kick your behinds even though it
probably will 
Cell Theory
1.
2.
3.
All living things are made of cells
Cells are the basic unit of structure and function in
an organism (basic unit of life)
Cells come from the reproduction of existing cells
(cell division)
Cells are literally everywhere!
Levels of Organization



So, life starts with cells. How does it build up into a
person?
IN YOUR TABLE, please talk about how we organize
our body cells. (We don’t name them cell
#1267436, so what names do we associate with
our body?)
Write down how your table thinks cells are
grouped.
Levels of Organization








Cell
Tissue
Organ
Organ System
Organism
Population
Community
Biome/Ecosystem
smallest unit of life!
group of 2+cells
group of 2+tissues
group of 2+organs
group of 2+organ systems
group of same organisms
group of different organisms
different organisms and their
environment
Circle Guidelines
Respect the Talking Piece a.k.a Batman
•
Speak from your Heart
•
Listen with your Heart
•
Speak with Respect
•
Listen with Respect
•
Remain in the Circle
•
Honor Privacy
EUKARYOTES AND THEIR
ORGANELLES
A.K.A. The day where we realize that we forgot a lot of
stuff over the past few years
P.S. The length of these notes will be determined by your
focus
Very focused/ on point= shorter notes
Unfocused/ Distracted= longer notes
Eukaryotic Cells



Protozoan (A
single-celled
Eukaryote)
Nucleus and other organelles
surrounded by a membrane
Like a small city
Include fungi, plant, and
animal cells.
Organelles


Cellular machines
Two general kinds
 Derived
from membranes
 Bacteria-like organelles
After the definitions…


After you write down the function of each organelle,
think about the part of a city it could represent.
Cell wall= stone wall around an old city
Cytoplasm



Cytoplasm is the liquid in which other cellular
structures are located
Supports and protects organelles
Part of city: Air, ground, gravity
Cell Membrane



The cell membrane is the boundary of the cell; it
protects and supports the cell
Decides what moves in/out of cell
Part of city: Security Team
Cell Wall


Provides extra structure and support
Part of city: Stone wall
Ribosomes



Make proteins!
Can be floating in cytoplasm or stuck to ER
Part of city: stores/ shops
Nucleus & Nucleolus



The nucleus is surrounded by the nuclear envelope
and contains a cell’s DNA (control center of cell)
The nucleolus is located
inside the nucleus and
produces ribosomes
Part of city: City Hall
Chromatin



Tightly coiled up DNA (deoxyribonucleic acid)
Found in the nucleus
Is the instruction manual for how to make everything
in our bodies
Mitochondria


Produce ATP (cellular energy)
Part of City: Powerplant
Chloroplasts


Produce glucose (for energy) via photosynthesis
Part of city: Bakery
Vacuoles



Cell storage; hold water, nutrients, waste, etc.
Keep plant cells strong (not goopy)
Part of City: Storage Units
Lysosomes


Contain enzymes that break down food and waste
Part of city: City Dump
Golgi Apparatus/ Body


Receives, packages and ships cell products
Part of city: Post Office, UPS, FedEx
Endoplasmic Reticulum

Smooth ER: transports proteins
Rough ER: makes proteins and
transports them

Part of city: Delivery Trucks

Flagella


Tail-like structures that help cells move
Part of city: ???




Cell wall
Large, central vacuole
Chloroplasts allow
photosynthesis
Rigid, geometric shape




No cell wall
Small or no vacuoles
No chloroplasts
Usually rounded in shape
Cell Differentiation


How a cell becomes
specialized (gets a purpose)
Stem cells—cells that can
divide many, many times and
can become any cell!
Circle Guidelines
Respect the Talking Piece a.k.a Batman
•
Speak from your Heart
•
Listen with your Heart
•
Speak with Respect
•
Listen with Respect
•
Remain in the Circle
•
Honor Privacy
PROKARYOTIC CELLS
RECAP AND COMPARISON
AKA: I FEEL YOUR PAIN. THIS IS SIX SLIDES AND A TABLE. THAT’S IT.
FOR REAL. I PINKY PROMISE.
Prokaryotes, A Recap
Prokaryotes= Bacteria




Have a centralized nucleoid region (where the DNA
is kept)
Have a cell membrane, cell wall, and cytoplasm like
eukaryotes
Have cilia or flagella to help them move
Reproduce very rapidly
Human reaction to Prokaryotes




Antibiotics
Only work on bacteria, not viruses!
Overuse and problems
https://www.youtube.com/watch?v=cN3x-3-BGns
Eukaryotes vs. Prokaryotes

All cells have at least three things in common:
A
cell membrane
 DNA
 Ribosomes


Prokaryotic cells have DNA not contained in a
nucleus (it’s free-floating in the cell)
Eukaryotic cells have a nucleus in which DNA
remains separate from the rest of the cell
Comparing Cell Types
Prokaryotes
Nucleus
Organelles
DNA
Eukaryotes
Comparing Cell Types
Prokaryotes
Nucleus
Organelles
DNA
Eukaryotes
X
Comparing Cell Types
Prokaryotes
Eukaryotes
Nucleus
X
Organelles
X
DNA
Comparing Cell Types
Prokaryotes
Eukaryotes
Nucleus
X
Organelles
X
DNA
Free-floating
Comparing Cell Types
Prokaryotes
Eukaryotes
Nucleus
X
Organelles
X
DNA
Free-floating
In nucleus
Comparison Video (Bio only)
https://www.youtube.com/watch?v=ruBAHiij4E
A
Compare/Contrast Assignment
• For this assignment, you will be sorting characteristics
of Eukaryotic and Prokaryotic cells
• Using the “Venn Diagram” given, sort the
characteristics and glue them down (or write them)
into the correct categories.
• This is an individual assignment due in 20 minutes.
You may use your phones and listen to music. Remain
in your seats.
Time for a challenge game
• Your group will be racing to put the different
characteristics of Eukaryotes and Prokaryotes
into the correct sections.
• Hint: There are 4 Eukaryote, 4 Prokaryote, and 7
Both