1. Photosynthesis (8.2)
State Standard
SB3A. Explain the cycling of energy through the processes of photosynthesis and respiration.

2. 8.2 Photosynthesis
Overview
Photosynthesis traps __________ (solar) energy & converts it to __________ energy in the form of _______________ (food).
*Don’t forget – photosynthetic organisms must also break down some of those carbohydrates to form ATP for themselves.

3. 8.2 Photosynthesis
*Label the reactants & products in
the equation below
Overview cont’d
The trapped light energy is used to convert the raw materials CO2 & H2O into carbohydrates & O2
PHOTOSYNTHESIS EQUATION

4. 8.2 Photosynthesis
Overview cont’d
The key to absorbing light is a green __________ called __________, found in chloroplasts.
Chloroplast Parts
__________ – looks like
a pancake (flattened sac)
__________ (pl. grana) –
stack of thylakoids
__________ – space
between grana – gel-
like matrix

5. Overview cont’d Photosynthesis… requires __________ of light energy.
__________, __________ leaves increase the amount of light that can be absorbed
supports almost all __________ on Earth either directly or indirectly.
converts light energy to chemical energy usually in the form of glucose (carb).
Occurs in the __________.

6. Photosynthesis occurs in __ phases.
Chapter 8
Cellular Energy
8.2 Photosynthesis
Overview cont’d
Photosynthesis occurs in __ phases.
Light-__________ reactions
* also called light reactions
* occur in the thylakoid membrane.
* This is the ______ part of photosynthesis.
Light-__________ reactions
*also called the Calvin Cycle
* occur in the stroma
* This is the _________ part of photosynthesis

7. Light Dependent Reactions
Chapter 8
Cellular Energy
8.2 Photosynthesis
Part 1
Light Dependent Reactions
Location: __________
__________ water molecules
Produces __________ for the Calvin Cycle

8. Part 1 Light Dependent Reactions Cont’d
8.2 Photosynthesis
Part 1 Light Dependent Reactions Cont’d
Products
__________
__________ (a high energy electron carrier)
_______ (formed from the splitting of water by light)
Where do they end up?
ATP and NADPH go on to __________ the next group of reactions
Oxygen is __________ out of the cell and we breathe it in.

9. Part 2: The Calvin Cycle (Light-Independent)
Chapter 8
Cellular Energy
8.2 Photosynthesis
Part 2: The Calvin Cycle (Light-Independent)
Location: __________
stores energy in organic molecules such as _________.
powered by the products of
the light dependent
reactions

10. Part 2: The Calvin Cycle (Light-Ind) cont’d
8.2 Photosynthesis
Part 2: The Calvin Cycle (Light-Ind) cont’d
Uses __________ __________ (CO2) from the atmosphere & energy from the ______-__________ reactions to fuel its processes.
Products:
__________ or other sugars (which are stored)
* some are used by the __________
* others are used by __________

11. Part 2: Calvin Cycle (Light Ind.) cont’d
8.2 Photosynthesis
Part 2: Calvin Cycle (Light Ind.) cont’d

12. Calvin Cycle Part 2: Calvin Cycle (Light Ind.) cont’d The Calvin Cycle
8.2 Photosynthesis
Part 2: Calvin Cycle (Light Ind.) cont’d
The Calvin Cycle
is the sugar
factory!
Calvin Cycle
Chocolate Chips
Cotton Candy
Candy Cane
Coca Cola

13. Photosynthesis Graphic Organizer