Cellular Respiration
Its how our cells release energy from food!
BrainPOP: Cellular Respiration
Do you remember???
What types of organisms do photosynthesis?
Why do plants do photosynthesis?
What are the reactants (what goes in)?
What are the products (what goes out)?
Which plant organelle is the site of photosynthesis?
How do animals get their energy?
How do they get food?
Which organelle releases energy from food?
The process by which cells
release from glucose (sugar).
Cellular Respiration
energy
This process happens in BOTH PLANT and ANIMAL cells!
Where do plants and animals obtain glucose?
FOOD!
Animals get it from the food they eat!
Plants get it from the food they make!
Glucose is the most common
sugar found in food!
C6H12O6
Besides glucose, what else do cells use for cellular respiration?
Oxygen
How do we get oxygen?
Breathing
energy
food
oxygen
breathing
Two Stages of Cellular Respiration
Stage 1:
In the cytoplasm
Glucose is broken down into smaller molecules
A small amount of energy is released
Stage 2:
In the mitochondria
The smaller molecules react and produce carbon dioxide, water and large amounts of energy.
Use your
textbooks… page 382!
What are the reactants and products of cellular respiration?
C6H12O6 + 6O2 6CO2 + 6H2O + energy
+ + + glucose oxygen carbon dioxide water energy
Is matter conserved after
this chemical reaction?
Cellular Respiration Equation
Reactants (what goes in)
Products (what comes out)
This energy is also known as ATP!
Compare and Contrast:Cellular Respiration & Photosynthesis
Photosynthesis Cellular Respiration
Reactants
Products
Organelle in which it occurs
Type of organism
light energy, CO2, H2O glucose, O2
glucose, O2 energy, CO2, H2O
chloroplasts mitochondria
producers such as plants and algae
both plants and animals
Create a Venn Diagramto compare and contrast
Photosynthesis & Cellular Respiration
Photosynthesis Cellular Respiration
both
Exit Slip“P”= Photoysnthesis only“C”= Cellular respiration only
Description Answers
1. Releases energy from food
2. Makes food energy for the organism
3. Performed by autotrophs (plants) only
4. Produces carbon dioxide
5. Produces glucose and oxygen
6. Occurs in the chloroplast
7. Occurs in the mitochondrion
8. Uses glucose and oxygen
9. Uses sunlight, water and carbon dioxide
10. Performed by both autotrophs (plants) and heterotrophs (animals)
C
C
C
C
PP
P
P
P
C