3. Our microscopes aren’t thatOur microscopes aren’t that
powerful.powerful.
If we were to think smaller, the cellIf we were to think smaller, the cell
would look something like this:would look something like this:
4. Here’s some info. on cells:Here’s some info. on cells:
Cells are the basic units of structure
and function in all living organisms.
(cells are the building blocks of life)
They are the smallest structure that
can perform all activities of life.
(cells are the smallest thing that can
live on their own)
They may be tiny, but they can
divide and form new cells.
5. Another important fact:Another important fact:
There are someThere are some
differences betweendifferences between
plant and animal cells!plant and animal cells!
6.
7. Do you know what organellesDo you know what organelles
are? Well, we haveare? Well, we have organsorgans……
cells havecells have organellesorganelles. We. We
have ahave a heart, lungsheart, lungs, and, and
kidneyskidneys; they have a; they have a nucleus,nucleus,
cytoplasmcytoplasm.. etc... etc.
8. Do you know all of the names andDo you know all of the names and
functions of all of the organelles?functions of all of the organelles?
The good news is … for this year,
you don’t have to know them all!
Woo Hoo
You DO have to know a few
important ones. Let’s see…
9. FIRST…LET’S LOOK AT THE CELL….FIRST…LET’S LOOK AT THE CELL….
Now, let’s remove the confusing stuff first.
Yesssssss….. Much Better =)
10. The main ones you have to know are…The main ones you have to know are…
1)1) CytoplasmCytoplasm 2)2) NucleusNucleus
3)3) Cell membraneCell membrane
4)4) ChloroplastChloroplast 5)5) Cell wallCell wall 6)6)
MitochondriaMitochondria
On the next slide,
find them on the picture!!
12. Where are the chloroplasts and cellWhere are the chloroplasts and cell
wall????wall????
YUP… you’re right. You only find those in
plant cells. THIS is an animal cell.
13. THIS is a plant cellTHIS is a plant cell
This is a chloroplast
The cell wall is the THICK layer
outside of the cell membrane.
15. So there ARE some differencesSo there ARE some differences
between plant and animal cells.between plant and animal cells.
What type of cells have cell walls?
Plant Cells
What type of cells look rectangular?
Plant Cells
16. More differences….More differences….
What type of cells have a nucleus?
THEY BOTH DO!! This is where both
plants and animals carry their DNA!!!!
This is why PLANTS (NOT
ANIMALS) can make
their own food!!!!!!
What type of cells have chloroplasts?
Plant Cells
17. How about the cytoplasm?How about the cytoplasm?
The cytoplasm is a
gel like substance
that takes up
most of the space
in the cell. It
holds the
organelles.
Lets look at the parts of cellsLets look at the parts of cells
18. What is the organelle that
separates the cell from it’s
outside environment? In
other words, what is the
organelle that keeps the
cytoplasm in?
But…..But…..
19. That depends on the kind of cellThat depends on the kind of cell
you are talking about.you are talking about.
In animal cells, it is the cell
membrane.
We can think of
the cell membrane
as a clear bag that
holds the cell
organelles inside.
20. Here’s the cell membrane in
a stained onion sample.
400x.
The cell membrane is the darker lines.
21. In plants, the thing that
keeps the cell together is the
cell wall.
Plants have a cell
membrane, but
theirs is
surrounded by a
cell wall. The cell
wall makes
plants stronger.
22. Spirogyra (a filamentous alga) as seen by light microscopy
Here’s a cell wall in an algae
plant.
23. Time to look at the most importantTime to look at the most important
part of the cell…part of the cell…
It’s important
because:
It is the control
centre of the cell. It
is sorta like the brain
and…
It contains the DNA!
24. Let’s focus in on the …Let’s focus in on the …
They’re green!
This is why plants
are green!
You
See??
25. ChloroplastsChloroplasts
This is where plants MAKE their ownThis is where plants MAKE their own
food. They can make enchiladas,food. They can make enchiladas,
tacos, and sometimes quesadillastacos, and sometimes quesadillas
whenever they want.whenever they want.
Just Kidding!!!!
All that they can really make is
glucose sugar through a process
called…?
27. Okay… so what goes in and out ofOkay… so what goes in and out of
plants in photosynthesis??plants in photosynthesis??
WHAT? YOU FORGOT?
LOOK AT IT AGAIN!!!
30. Mmmm… if photosynthesisMmmm… if photosynthesis
occurs in chloroplasts, whatoccurs in chloroplasts, what
process occurs in mitochondria?process occurs in mitochondria?
Once again, I’m waiting
for some kind of answer.
Ready for the answer?
38. So what goes in and out ofSo what goes in and out of
mitochondria during cellularmitochondria during cellular
respiration?respiration?
Yeah yeah… just one more look..
40. Okay!! Tell me what IOkay!! Tell me what I
want to hear!!!want to hear!!!
What comes in andWhat comes in and
out of mitochondriaout of mitochondria
during cellularduring cellular
respiration?respiration?
