Warm-Up:



Update your Table of Contents
BYOT TOMORROW!
Get your analogies out to be checked
– have a good one to share?
Date
Session
#
2/19
3
Activity
Cellular Processes – Intro to STERNGRR
Page
#
6
Review…now that we’ve refreshed our
memory we can add some details
 Organized
Structure (cells & their
organelles - DNA/genetic code)
 Grow and Develop (change over
time = evolution; repair cells;
make new cells)
 Respond to Environment
(adapts)
 Reproduction (one of many
metabolic or cellular processes)
Review
 Cells
contain organelles and
each organelle has a specific
function to keep the cell alive…
Review Game
Organelle Mix & Match –
use the pink cards to
match the organelle to its
function
* leave the green cards
in the bag for now!
Review
 The
two main processes are
Photosynthesis & Cellular
Respiration but there are many
more processes that ensure
cell function & survival!
(Metabolic)
Cellular Processes:
The processes we will discuss…STERNGRR
1.
2.
3.
4.
5.
6.
7.
8.
Synthesis (photosynthesis would fit here)
Transport
Excretion
Regulation
Nutrition
Growth
Respiration (cellular respiration would fit here)
Reproduction
Synthesis
How organisms build necessary molecules
 Examples:

Protein Synthesis: making proteins
 Photosynthesis: plants make food using energy
from sunlight

Synthesis
Using your STERNGRR cards & match
up organelles that would take part in the
metabolic cellular process of synthesis!

Transport
How
organisms get what they need to cells
(moving materials within the organism)
 Examples:

Active Transport vs. Passive Transport
Transport
Using
your STERNGRR cards &
match up organelles that would
take part in the metabolic cellular
process of transport!
Excretion
How organisms get rid/break down their
waste and balance their fluids
 Examples:

Removing fluids to balance water
 Removing unused molecules from food

Excretion
Using your STERNGRR cards &
match up organelles that would
take part in the metabolic cellular
process of excretion!
Regulation
How organisms control body processes
 Examples:
 Important to homeostasis - to maintain
balance within the body and adapt to
changes

Sweating –
reduces
body
temperature
Regulation
Using your STERNGRR cards & match
up organelles that would take part in
the metabolic cellular process of
regulation!
Sweating –
reduces
body
temperature
Nutrition
How organisms get or obtain food
 Examples:

Fungi decompose dead remains (decomposer)
 Plants make their own food (autotroph)
 Animals consume other organisms and
absorb food (heterotroph)

Nutrition
Using
your STERNGRR cards &
match up organelles that would
take part in the metabolic cellular
process of regulation!
Growth
How organisms make new cells and
develop and repair necessary body parts
 Example: Mitosis

Grow – to get larger in
size; body size
Develop – to change due
to hormonal or mental cues
Growth
Using your STERNGRR cards &
match up organelles that would
take part in the metabolic cellular
process of growth!

Grow – to get larger in
size; body size
Develop – to change due
to hormonal or mental cues

QUICK REVIEW: Living things may be
complex and made up of many levels
5. Organism
4. Organ System
3. Organs
2. Tissues
1.Cells – basic unit of
life
* Atoms, Molecules
*Elements
Muscle
cell
Muscle
tissue
Heart
Circulatory System/
Organsim
Respiration
How organisms make usable energy
A series of chemical reactions that result
in the release of energy called ATP

Respiration
Using
your STERNGRR cards &
match up organelles that would take
part in the metabolic cellular
process of respiration!
Reproduction
Organisms produce offspring
Examples:

Meiosis
 Sexual or Asexual Reproduction
 Prevents Extinction

Reproduction
Using
your STERNGRR cards &
match up organelles that would
take part in the metabolic cellular
process of reproduction!
A Gummy Situation
Part 1: Create a
Hypothesis…
 If
I leave my gummy bear
baby in water until
Thursday,
then…..because…..
Relationship Sets - Classwork
 Use
the words on your
vocab set 8 list as well as
the STERNGRR words we
learned today and
construct 10 relationship
sets!
Warm-Up:



Update your Table of Contents
Write a reminder about your “Acting
Out the Roaring 20’s” in your agenda
Get ready for a speedy lesson!
Date
Session
#
2/21
4
Activity
Cellular Processes – In Depth
Page
#
7
Cellular Processes:
The processes we will discuss…
Review Photosynthesis
1. Cellular Respiration
2. Transport
 Active
 Passive
 Diffusion
 Osmosis
3. Mitosis
•
Photosynthesis - just a
reminder…

Plant cells use energy from
the sun, carbon dioxide and
water to make food
Starting
Materials
Energy
(sunlight)
Carbon
Dioxide
Water
Process
The chloroplasts take
the sunlight, carbon
dioxide and water and
makes food
Products


Sugars
Oxygen
1. Cellular Respiration

Animal Cells then use the oxygen
and sugars to “breathe” and make
energy (ATP)
Starting
Materials
Sugars
Oxygen
Process
The mitochondria takes
the sugar and the
oxygen and makes
energy
Products
Energy
(ATP)
Carbon
Dioxide
Water
Cellular Respiration Review Question

Why do you breathe more when
you’re running around than
when you’re sitting watching
television?
Cellular Respiration Answer


Because you’re requiring more energy
when you run than when you’re just
sitting watching TV right?
So if you need more energy, then you
need more oxygen to give you that
energy so your cells undergo
respiration!
2. TRANSPORT


Things have to move in and out
of the cell
There are 2 types of transport
Active Transport
 Passive Transport

Remember: Which organelle
allows things to enter or leave
the cell?
Active
 Materials
VS.
are
moved in and
out of cell
using the cell’s
energy
Remember:
Passive
 Materials
are
moved in
and out of
cell
WITHOUT
using the
cell’s
energy
Which organelle makes the energy for the cell again?
What is that process called when the cell makes energy?
Passive Transport

The cell uses two main
processes to passively move
materials in and out of the cell.


Diffusion
Osmosis
Diffusion

Process by which molecules spread
out

Move from areas of HIGH
concentration to LOW concentration
BUT WHY??
Equilibrium


Molecules don’t
like to be crowded,
so they diffuse, or
spread out until
their concentration
is equal
everywhere!
This idea is known
as equilibrium
Diffusion Review Question

What happens to the
concentration of Kool-Aid when
you add water? Why?
Diffusion Review Answer

The Kool-Aid begins to move
throughout the water so the
concentration of kool-aid
becomes the same throughout
the water and it reaches
equilibrium
Diffusion Demo
Osmosis

The diffusion of water through a
membrane
Remember:
Which organelle would
store water in the cell??
Osmosis Review Question

Why do your hands get wrinkly
when you’re in the water for a
long time?
Osmosis Review Answer

When your hands are in water for a long
period time you wash off the oily
substance that keeps water for entering
your skin. So once that oily layer is
washed away your skin becomes semipermeable and water diffuses into your
skin. Your hands become wrinkly
because they are trying to reach
equilibrium with the water!!
A Gummy Situation
Let’s take a break and check on
our Gummy Bear Babies…

Using the following vocabulary
words, explain what happened to
your baby:





Transport (distinguish whether it is
active or passive)
Osmosis
Diffusion
Concentration
Equilibrium
3. Mitosis

The steps a cell goes
through to
reproduce and make
more cells so an
organism can grow
and repair itself
 New cell is an
exact copy of
original cell
Mitosis

Mitosis is a process broken
down into 4 parts:




Part
Part
Part
Part
1:
2:
3:
4:
Prophase
Metaphase
Anaphase
Telophase
Cells Alive Animation
 Phases
of Mitosis
http://www.cellsalive.c
om/mitosis.htm
Bonus…


If your gummy bear baby was alive,
how could you use the word
MITOSIS to describe what happened
to it?
Add this to your previous Quick Write
for “A Gummy Situation” Part 2
Mitosis

Use your book to fill out the
graphic organizer for
Mitosis…Pages E82-E83
Prophase
• Nuclear membrane disappears
• DNA condenses into
chromosomes
Mitosis
Metaphase
• Chromosomes line up in
the middle of the cell
Anaphase
• Chromosomes split into two
identical separate
chromosomes
• The 2 sets of chromosomes
pull to the opposite ends of the
cell
Mitosis
Telophase
• 2 new nuclear membranes form
• The cell pinches and divides into
2 new cells!!
Mitosis Review Question: Why do you
think it is important for the
DNA/chromosomes to be copied before
the cell divides?
Are You Smarter than a
Vampire??
 Twilight
Mitosis Clip
http://www.youtube.com/watch
?v=sOM_u1PY0s0