Hand in W.S. 5.2 (DR/Quiz) before the bell rings

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Class Topics
Title Biology 11/22/06
Objectives

• To learn about photosynthesis

• Hand in W.S. 5.2 (DR/Quiz) before the bell rings
• 1A hand in W.S. 5.1 as well
• Chapter 5 Quiz 1
• Review the light reaction
• Notes Dark Reaction
• "Ad astra per aspera."
• (to the stars through hardship)
• Anonymous

Sunday, March 08, 2015 158 PM
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Corrections

• Each assignment can be corrected a maximum of
  twice
• Assignments marked DNF cannot be corrected!
• All corrections must be turned in by the time the
  test is taken

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Class Assignments
By When
What

• Chapter 5 Quiz 1 11/22/06
• Read 97-103 11/22/06
• W.S. 5.2 (DR/Quiz) 11/22/06
• Chapter 5 Quiz 2 11/28/06
• Due this class period
• Due next class period
• Due in the future

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Grade Sheet
1A SR p. 61 - 5 pts Measurement W.S. 10 pts
3A SR p. 42 6 pts
4A SR p. 47 5 pts
2A Measurement W.S. 10 pts SR p. 80 5 pts
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Postquiz Activities

• Hand in quiz
• Review photosynthesis (light reaction)
• Correct homework

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Light Dependent Reaction Review

• Photosystem II (Grana, thylakoid membrane)
• Light energy is absorbed by chlorophyll
• Energy transferred to an electron
• Excited electron exits to ETC
• Electron must be replaced
• Water molecules split
• Oxygen gas released
• ETC forms ATP

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Light Dependent Reaction

• Photosystem I
• The electrons are energized again (more light
  energy)
• Energy is transferred to change NADP into NADPH
• NADP is an electron carrier (takes the high
  energy electrons to the stroma for use in the
  light independent reaction

Nicotinamide adenine dinucleotide phosphate
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From http//www.cat.cc.md.us/gkaiser /biotutoria
ls/photosyn/fg4.html
From http//www.cat.cc.md.us/gkaiser /biotutoria
ls/photosyn/fg5.html
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Animations

• University of Virginia animation
• interactive
• Kansas University animation
• St. Olaf College Flash animation
• Central Michigan University Animation
• animation

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Products

• Products formed in the light dependent reaction
• 1. Oxygen gas (O2) released to atmosphere
• From 2 water molecules being split
• 2. ATP to light independent reaction (stroma)
• From photosystem II
• 3. NADPH - to light independent reaction (stroma)
• From photosystem I

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Light independent reaction

• Dark reaction
• Occurs in stroma of chloroplast
• Uses C from CO2 and H from NADPH to form C6H12O6
• Uses energy from ATP and NADPH
• Calvin Cycle

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From http//lhs.lps.org/staff/sputnam/ Biology/U4
Metabolism/calvincycle.png
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Calvin cycle review

• What goes in
• 6 CO2
• 18 ATP
• 12 NADPH
• What comes out
• 1 glucose molecule

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Chapter 5 Quiz 2 Review

• Light dependent, light independent reactions
• Matching
• Ex. ATP produced, oxygen gas released, PGA
  produced, carbon dioxide used, water molecules
  split, PGAL produced, in stroma, light reactions,
  dark reactions
• Products of photosystems II and I
• Purpose of electron transport chain
• Purpose of ATP synthetase
• Calvin cycle matching (from handout)
• Photosynthesis chemical equation

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