Download Photosynthesis and Respiration

The picture shows an exchange of gases between plants and animals.
What to do…
Take out a half sheet of paper.
Write your name on the paper.
Answer the question!
What gas is MOST LIKELY represented by the arrow labeled X?
A.
B.
C.
D.
Carbon dioxide
Hydrogen
Nitrogen
Oxygen
Photosynthesis and Respiration
Objective: SPI 3.1 - Compare the chemical compounds
that make up the reactants and products of
photosynthesis and respiration.
Photosynthesis
All of the molecular putting together
(anabolic) and the taking apart (catabolic)
activities within a cell makes up the
metabolism in the cell.
Photosynthesis = • Takes place in the chloroplast.
• Uses end products of
Respiration as raw materials.
• Anabolic = putting together.
cytoplasm
Green Plants = Organisms
with chlorophyll a
Definition:
A series of enzyme controlled chemical
reactions in which sunlight(energy) is:
1) trapped/captured
2) converted to chemical bond energy
3) stored in molecules of glucose derived
from CO2 & H2O
When Occurs:
Only in the presence of sunlight
Where Occurs:
In the chloroplast of green plants
and algae or any place chlorophyll
is located.
Why Occurs:
To convert light energy into stored
energy of chemical bonds (glucose)
Photosynthesis Equation:
WATER
6CO2 +
CARBON
DIOXIDE
6H2O +
OXYGEN
ENERGY
C6H12O6 +
GLUCOSE
6O2
Cellular Respiration – All living things respire
Respiration is:
Catabolism which is taking apart
and making new products
Definition of Cellular Respiration
• A series of controlled
chemical reactions (by
enzymes) in which energy is
released slowly by oxidation
of food like glucose.
When it occurs: Every
second of every minute
Chemical EQUATION:
taking glucose apart to make CO2, water & ATP
CARBON
DIOXIDE
GLUCOSE
C6H12O6 +
6O2
OXYGEN
6CO2 +
ATP
6H2O +
WATER
ENERGY
Types of Cellular Respiration
1. Aerobic: O2 is required. It becomes the final
H+/e- acceptor forming H2O, glucose is
completely oxidized (36 ATP’s formed.)
1. Anaerobic: No O2 is required, partial
breakdown only. End products still
contain energy. ( 2 ATP’s formed.)
Anaerobic Respiration / Fermentation
• If O2 is NOT present then
• anaerobic respiration or fermentation follows glycolysis
• Yeast & some Bacteria enter Alcoholic fermentation,
and
• Muscle cells enter Lactic Acid fermentation.
Photosynthesis
Comparison
Respiration
1. Only
in the presence of
sunlight & chlorophyll a
1. All
2.
Uses raw materials CO2 &
H2O
2.
3.
Produces C6H12O6 & O2
3. Produces
the time
Uses raw materials
C6H12O6 & O2
CO2 & H2O
(36 ATP)
4.
5.
Anabolic
Occurs in the Chloroplast
4.
Catabolic
5. Occurs
in Mitochondria
End
Products
Photosynthesis
Raw
Materials
Glucose
C6H12O6
O2
CO2 + H2O
Raw materials
Amount of Energy
Stored in chemical
bonds
Plants carry on both processes
Animals only do Respiration
Cellular
Respiration
CO2 + H2O
End products
Putting it together. . .
• Complete the following Venn diagram
• It is due TOMORROW if not finished in class