1. (to the stars through hardship)
2/23/2019
Title: Biology 11/22/06
Objectives:
To learn about photosynthesis
Class Topics
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
Saturday, February 23, :57 PM

2. Corrections Each assignment can be corrected a maximum of twice
2/23/2019
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

3. Class Assignments Chapter 5 Quiz 1 11/22/06 Read 97-103 11/22/06
2/23/2019
Class Assignments
What
By When
Chapter 5 Quiz 1 11/22/06
Read /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

4. Grade Sheet 1A – SR p. 61 - 5 pts Measurement W.S. – 10 pts
2/23/2019
Grade Sheet
1A – SR p 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

5. Postquiz Activities Hand in quiz
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Postquiz Activities
Hand in quiz
Review photosynthesis (light reaction)
Correct homework

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9. Light Dependent Reaction Review
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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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11. Light Dependent Reaction
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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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13. 2/23/2019 From: http://www.cat.cc.md.us/~gkaiser
/biotutorials/photosyn/fg4.html
From:
/biotutorials/photosyn/fg5.html

14. Animations University of Virginia animation
2/23/2019
Animations
University of Virginia animation
interactive
Kansas University animation
St. Olaf College Flash animation
Central Michigan University Animation
animation

15. Products Products formed in the light dependent reaction
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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

16. Light independent reaction
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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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18. From: http://lhs.lps.org/staff/sputnam/
PGAL
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From:
Biology/U4Metabolism/calvincycle.png

19. Calvin cycle review What goes in What comes out 6 CO2 18 ATP 12 NADPH
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Calvin cycle review
What goes in
6 CO2
18 ATP
12 NADPH
What comes out
1 glucose molecule

20. Chapter 5 Quiz 2 Review Light dependent, light independent reactions
2/23/2019
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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