Do now activity #2 What do pigments do? What is the pigment that makes plants green? Where in a plant cell can you find the “green pigment”? What are the two parts of a chloroplast? Write down the photosynthesis equation.
Section 3-2: Light Dependent & Calvin Cycle Essential Question What does the Light Dependent Reaction produce? What does the Calvin Cycle produce? Section 3-2: Light Dependent & Calvin Cycle Learning Target Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.
announcements Biology Tutoring this week: Lunch B (Tuesday & Thursday) 7:00AM (Monday – Friday) After school Biology Tutoring: Thursday You must sign up for retakes during Biology Tutoring. 7:00AM retakes only. Lab this Friday. Students w/o pre-lab will not participate.
Color Printer Paper = 5 Points announcements Available Extra Credit: Tissue Box = 2 Points Box of Soda Straws = 2 Points Color Printer Paper = 5 Points
overview Photosynthesis occurs in the Chloroplast of a plant cells. Two main reactions: 1. Light-dependent 2. Calvin Cycle
Light Dependent Reactions thylakoids LDR happens in the _________ .
Light Dependent Reactions Produces O2 Converts ADP into ATP
Light Dependent Reactions NADPH is an electron carrier. (nicotinamide adenine dinucleotide phosphate) It can accept and transfer electrons
Parts of the Light Dependent reaction Photosystem 2 Electron Transport Chain Photosystem 1 Hydrogen Ion Movement ATP Formation
LDR: How it works A. Photosystem 2 Light is absorbed Energy goes to electrons Electrons pass through ETC Water broken up into electrons, H+, and O2
Parts of the Light Dependent reaction Photosystem 2 Electron Transport Chain Photosystem 1 Hydrogen Ion Movement ATP Formation
LDR: How it works B. Electron Transport Chain Electrons move through ETC to Photosystem 1
Parts of the Light Dependent reaction Photosystem 2 Electron Transport Chain Photosystem 1 Hydrogen Ion Movement ATP Formation
LDR: How it works C. Photosystem 1 (I) Light is absorbed Energy goes to electrons Electrons used to make: NADP+ NADPH
Parts of the Light Dependent reaction Photosystem 2 Electron Transport Chain Photosystem 1 Hydrogen Ion Movement ATP Formation
LDR: How it works D. Hydrogen Ion Movement Inner thylakoid membrane fills up with H+
Parts of the Light Dependent reaction Photosystem 2 Electron Transport Chain Photosystem 1 Hydrogen Ion Movement ATP Formation
LDR: How it works E. ATP Formation H+ pass through ATP synthase to make: ADP ATP
Photosynthesis occurs in the Chloroplast of a plant cells. Two main reactions: 1. Light-dependent 2. Calvin Cycle
The Calvin Cycle Reactions taking place in the stroma that do not need light. The Calvin Cycle uses ATP and NADPH to make sugar.
Calvin Cycle: How it works 6 CO2 molecules enter the cycle
Calvin Cycle: How it works Energy from ATP and NADPH are used
Calvin Cycle: How it works Glucose is made
Factors Affecting Photosynthesis Water Amount can slow or stop photosynthesis Temperature Photosynthesis depends on enzymes that function best between 0ºC and 35ºC Light intensity Increases photosynthesis until maximum rate reached