Download Photosynthesis and Respiration

What is photosynthesis?
Using light
To make
Using light to make food
-The process in which light energy (solar energy)
is converted into stored chemical energy (food)
In which cell organelle does photosynthesis occur?
Therefore, photosynthesis
ONLY occurs in plant cells!!
What is chlorophyll?
-The green pigment in a chloroplast that traps
sunlight
What are the raw (unused) materials for
Photosynthesis (requirements)?
1. Sunlight
2. Chlorophyll
4. H2O
3. CO2
1. Chlorophyll traps required sunlight (light reaction)
2.Energy captured (sunlight) is converted to chemical
energy (glucose) (Can happen in light or dark)
Carbon-dioxide + Water
CO2
+ H2O
Glucose + oxygen + water
C6H12O6 + O2 +
H2O
How do the raw materials enter the plant?
1.Chlorophyll- Already present in the leaf (chloroplast)
2.Water- Enters through roots and travels up the
stem to the leaf
3.Sunlight- Absorbed into leaf
4.CO2- Enters through openings on the surface of
The leaf called stomata (stomate)
Guard Cell
Stomate (opening)
Guard Cell- Cells that control the
opening and closing of
the stomate
Why does a stomate open and close?
-Gas exchange
-Regulate water balance
Closed stomate
Open Stomate
What materials are produced at the END of
Photosynthesis (end-products)?
1. Glucose (simple sugar)
2. Oxygen
3. Water (small amount)
What happens to the glucose?
-small amount used in cellular respiration, the
rest is converted to starch to store energy
What happens to the oxygen?
-Gets taken in by organisms to carry out
cellular respiration (We breathe majority of
it in!!!)
What happens to the water?
-gets used; the excess is released through
the stomate
What is photolysis?
- The splitting of water
This is where our
oxygen comes from
Where in the PLANT does photosynthesis occur?
-The leaf
(MOST released
through stomate)
(enters through
Stomate)
(enters through roots)
H2O
(reused/released)
(used by plant to carry
Out cellular respiration)
What is Cellular Respiration?
-Oxygen and glucose combine to make ATP (energy)
-The process by which chemical ENERGY stored
in nutrients is RELEASED for use in cells
In which cell organelle does cellular respiration occur?
Therefore, respiration occurs
In ALL living things!
What are the raw (unused) materials for
Cellular respiration (requirements)?
1. Oxygen
2. Glucose
Oxygen + Glucose+ Water
O2 +
C6H12O6 + H2O
3. Water
ATP+Carbon-dioxide + Water
ATP+ CO2
+ H2O
What materials are produced at the END of
Cellular respiration (end-products)?
1. ATP- energy/fuel for cells to carry out life
processes
2. Carbon-dioxide- released by animals and used
by plants for photosynthesis
3. Water- some used/excess released
Photosynthesis
-using light to make
food
Process:
(Definition)
Word
Equation:
Carbon-dioxide + water
Glucose + oxygen + water
Source of
Energy:
Raw materials
Used:
Sunlight
-carbon-dioxide
-Water
-Chlorophyll
-Sunlight
Respiration
-using oxygen and
Food (glucose) to
Make energy (ATP)
Oxygen + glucose
ATP+carbon-dioxide=water
Food (glucose)
-Oxygen
-Glucose
Materials
Produced:
When does
this occur?
-Oxygen
-Glucose
-Water
-Daytime
Location
in the cell:
-Chloroplast
Function:
-energy storage
-Carbon-dioxide
-ATP
-24 hours/day
-Mitochondria
-energy released
What is the relationship between photosynthesis
and respiration?
-The end-products of one process are the raw materials
of the other process
Together,
they make up the
CO2
O2
H2O
glucose
Photosynthesis
In the chloroplast
O2
CO2
glucose
H2O
ATP
Cellular Respiration
In the mitochondria