This document provides information about how cells convert food energy into a usable form through cellular respiration. It discusses that glucose is the molecule that cells can directly use for energy but must first be broken down by mitochondria. The mitochondria break down glucose and convert the energy from it into many molecules of ATP through cellular respiration. ATP is the form of energy that cells can directly use to power their functions and work. The document seeks to explain this process to students through diagrams, examples, and questions to help them understand how food energy is converted into a usable form in cells through the mitochondria and ATP.

1. 10-27-16 Warm up
1. How do we get the
energy we need?
2. What group of
organisms makes
this for us (and most
other living things)?

2. 10-27-16
Warm up
Mitochondria Lesson
Cancelled: quiz tomorrow 

3. As always…
Key concepts are underlined
Vocabulary terms will be in green

4. How cells use GLUCOSE

5. Your goal
Explain what happens
to food energy in cells

6. On your whiteboard
What are the 7 characteristics of life?
How many can you remember?
– All living things are made of cells
– All living things have DNA
– All living things reproduce
– All living things use materials and energy
– All living things grow and develop
– All living things respond to their environment
– All living things maintain homeostasis

7. You already know this! :)
Equation for photosynthesis:
H2O + CO2 ----------------> C6H12O6 + O2
water + carbon dioxide ------------------> +
oxygen
Light energy
Light energy
glucose

8. So what is glucose?
Divide your whiteboard into 3 columns
Fill in the information about glucose
Chemical
formula
Complete the
sentence:
“Glucose is
used
for_______”
Complete the
sentence:
“Glucose is a
______”

9. The following 6 slides
Are a review of macromolecules –
it’s been a long time

10. Identifying the 4 Organic
Macromolecules
1.1. CarbohydratesCarbohydrates
These are BIG molecules -
macromolecules
They are polymers made up of
many simple, repeating
monomers
The monomersmonomers of carbohydrates
areare…
SUGARSSUGARS called monosaccharidesmonosaccharides

11. Quick Check - Whiteboards
• A carbohydrate…is it a monomer or a
polymer?

12. Quick Check - whiteboards
• Simple sugar - monosaccharide…is it a
monomer or a polymer?

13. Practice Drawing it - whiteboards
• Draw a monomer of a carbohydrate
• Write the name of the monomer you drew
or monosaccharide
simple sugar
glucose
fructose

14. Carbohydrates
• An important simple sugar is glucoseAn important simple sugar is glucose

15. carbohydrates
Monomer: Simple Sugar
Compound: Carbohydrate

16. Living things use food to get the
materials and energy they need

17. But cells can’t use food molecules like
glucose directly for energy
The mitochondria FIRST turns food
energy into a form of energy the cell
can use directly.

18. ATP
Mitochondria break down glucose and
convert the food energy into lots of ATP
during cellular respiration
ATP is the form of energy that is useful to
cells
ATP
ATP
ATP
ATP
ATP
ATP

19. It’s kind of like a
gumball machine
Food energy is like dollar bills
Lots of energy - but too big
for cells to use directly
The mitochondria can change
the Big food energy into a
usable form

20. Quick Check –
on your whiteboard
In my analogy:
What does the dollar bill represent?
What do the pennies represent?
What does the gumball machine
represent?
Try to think of another analogy -
something large that must be broken
into smaller pieces to be useful

21. The steps
1 - glucose enters the cell
2 - the cell breaks glucose in ½ and makes a
little ATP
3 - the mitochondria breaks the ½ sugar the rest
of the way down to release all the energy in it
4 - the energy released from glucose is stored in
ATP
5 - ATP can now power the work of the cell

22. You try
Work with the person sitting next to you
Try to arrange the cards in the correct
order
–From glucose to ATP
ATP
ATP ATP

23. You try
Fill in the blanks
Then we will read it aloud

24. FILL in the BLANKS then READ
ALOUD
• Cells use food molecules like ________ for energy.
But these molecules must first be broken down by the
_________. The energy in glucose can then be _____
in molecules of _____. ATP is a useful form of
_______ for cells.
Word bank:
• Energy
• Glucose
• ATP
• Mitochondria
• Stored

25. Practice Questions – with your
neighbor
Choose the correct answer
Explain WHY it is correct

26. Choose an answer and
explain why you chose it
The role of the mitochondria is to
a. Convert light energy into chemical energy
b. Convert chemical energy to light energy
c. Convert the chemical energy of food into
the chemical energy of ATP
d. Convert ATP energy into a form that is
useful to cells

27. Choose an answer and
explain why you chose it
The work of cells is powered by
A. ATP
B. Food molecules
C. Glucose molecules
D. Mitochondria

28.  Researchers noticed that certain
cells have many mitochondria, more
than other cells they have observed.
 What kind of cells would have
high numbers of mitochondria and
why?

29. We need lots
of ATP to
run this fast!

30. Why do cells need ATP to do
work?
Can’t store ATP
– Too unstable
– Can only be used in
the cell that made it
– Only short term
energy storage
Carbohydrates and
lipids are for long-
term energy storage

31. So our goal was to…
Explain what happens to
food energy in cells.
Do you know?

32. Your turn
Choose 1 of the following tasks
Task 1: Create a flow
chart that outlines what
happens to food energy
in cells
– Make sure to use these
words in your response:
foodfood, glucose,glucose,
mitochondria, ATP,mitochondria, ATP,
energy,energy, stored,stored,
releasedreleased
Task 2: Draw and
label a diagram that
shows what
happens to food
energy in cells
– Be sure to include:
mitochondria,mitochondria,
food, glucosefood, glucose
molecule, ATPmolecule, ATP
molecules,molecules, energyenergy
stored, energystored, energy
released.released.

33. Please complete the EdPuzzle
assignment in Google Classroom