journal week: 10, monday, october 29th

Journal Week: 10, Monday, October 29th

What does the word “producer” mean?Describe what comes to mind when you

hear the word producer.Give some examples of producers.

Objectives:

Relate producers to photosynthesisDescribe the process of photosynthesis

Photosynthesis:a process that captures energy from

the sunlight to make sugars that store chemical energy

Miss HannaBiology I

1) Formula

6CO2 + 6H2O + Energy (Sunlight)6O2 +C6H12O6

Carbon dioxide + Water + Energy Oxygen + Glucose

2) Purpose

To capture energy ◦Sunlight ATP

Make glucose (sugar)

3) Location

Plants onlyOrganelle: ChloroplastStructures Inside a

Chloroplast (write under notes)◦ Thylakoids: saclike

photosynthetic membranes in chloroplast

◦ Grana (granum): stacks of thylakoids

◦ Stroma- region outside thylakoid membrane

Chlorophyll: a molecule that absorbs some of the energy in visible light DRAW &

LABEL THIS!

4) Cycles of Photosynthesis

2 Cycles in Photosynthesis◦4a) Light Dependent Reaction

Produces ATP◦4b) Light Independent -Calvin Cycle

Uses ATP from Light Reaction Creates Sugar from Carbon dioxide

4a) Light-Dependent Reactions

Location: Takes place in grana/thylakoidReactants: H20 and energy from light Products: oxygen gas Goal: convert ADP and NADP into the

energy carriers ATP and NADPH (carries electrons for energy) for light independent reactions

4b) Light-Independent Reactions “Calvin Cycle”

No light requiredLocation: StromaReactants:

◦ATP and NADPH created in the light dependent reactions

◦Uses CO2Products: high energy sugars (glucose

Light vs. Calvin

Draw this picture in your notebook

Calvin Cycle

5) Factors Affecting Photosynthesis

Amount of water in the environment◦ shortage can slow/stop photosynthesis

5) Factors Affecting Photosynthesis

Temperature◦Between 0-35C degrees is ideal

5) Factors Affecting Photosynthesis

Light intensity◦Increase light will increase in photosynthesis

until max rate is reached

Ticket out the Door: Photosynthesis Review

-On a half sheet of paper…answer these.1. What is Required for Light Dependent

Reactions? (Reactants)2. What is Produced in Light Dependent

Reactions?3. What is Required for Light Independent

Reactions? (Reactants)4. What is Produced in Light Independent

Reactions?