LB145Sec 001-004

Today’s Outline

- Announcements:HAND IN StudyNotes3b– front of classroom.Formative Evaluation Results are on website.Homework #3 is due on Tuesday. Don’t forget – flexible grade weightings.

- Light Reactions (recap)- Calvin Cycle (intro)- Thylakoid Sculpting Competition

Fig. 10-17

Light

Fd

Cytochromecomplex

ADP +

i H+

ATPP

ATPsynthase

ToCalvinCycle

STROMA(low H+ concentration)

Thylakoidmembrane

THYLAKOID SPACE(high H+ concentration)

STROMA(low H+ concentration)

Photosystem II Photosystem I

4 H+

4 H+

Pq

Pc

LightNADP+

reductase

NADP+ + H+

NADPH

+2 H+

H2OO2

e–

e–

1/21

2

3

Light

Fig. 10-5-4

H2O

Chloroplast

LightReactions

NADP+

PADP

i+

ATP

NADPH

O2

CalvinCycle

CO2

[CH2O](sugar)

The GREAT THYLAKOID SCULPTING COMPETITION

Your Task:Create a model of light reactions occurring across a thylakoid membrane.Rules:1. Teams of two.2. Write your names on your board. They must be large and clearly

legible.3. To “hand-in” this assignment, you need to have a member of

the teaching team to take a picture of it.4. Consult with any member of the teaching team to review HOW

the thylakoid makes ATP and NADPH. Your completed assignment must be initialed by a member of the teaching team.

5. This is a learning exercise ONLY if you make it one.

The GREAT THYLAKOID SCULPTING COMPETITION

Your Task:Create a model of light reactions occurring across a thylakoid membrane.Your model must include representations of: PSII, pq, the cytochrome complex, pc, PSI, fd, NADP+ reductase, ATP synthase, electrons, protons, water, NADP+, NADPH, O2, ATP, ADP, Pi

• You must be done and cleaned up by 2:00 pm• You must get a picture of your work with your names written clearly on it

(the model is worth 3 pts; explaining it to a member of the teaching team = 2 pts).

• The top 5 entries as judged by the teaching team will receive a prize (to be awarded in lab).