**Included in a money-saving bundle**
The Light Dependent Reactions in Photosynthesis are challenging to teach because there are so many details. Some teachers simply skip over the details and just give students the net reaction to recite and regurgitate. I have taught it many times and I think the details are what make photosynthesis (and biology in general) beautiful to understand. There are a few key learning goals I have for my students when they study the these reactions.
1. This is an enzymatic process. I remind them that enzymes are mostly made of proteins and proteins are large molecules that have protons, electrons, and neutrons, just like other molecules. They can gain or lose electrons.
2. I focus just on non-cyclic electron flow. In my advanced classes, I do the extra challenge page where students examine the cyclic electron flow, describe it, and then compare the two. But I do not show this to basic or regular level students; it is just too confusing.
3. Depending on the order of topics taught throughout the year, this process can be really easy to understand if they have already studied aerobic respiration and specifically oxidative phosphorylation. The process is so similar! If I have covered both, I like to go back and ask them to compare the two.
4. I cover the Calvin Cycle right after I cover this process, so they see the connections and the reason for producing NADPH.
Included in this activity (PDF) are the following:
Three question and reading pages (and answer keys) – Pages 1-2 are reading, page 3 is a question page
A 4th challenge question/activity page
Light Reactions Coloring Page
Light Reactions Coloring Page answers
Cyclic Electron Flow Coloring Page
Cyclic Electron Flow Coloring Page answers
Check out my other Respiration and Photosynthesis Resources
Glycolysis Cut-and-Paste Activity
Krebs/Citric Acid Cycle Cut-and-Paste Activity
Oxidative Phosphorylation Coloring Page
Calvin Cycle Cut-and-Paste Activity
If you have any questions, suggestions, or corrections, please leave a question on the question and answer section of my store and I will get back to you quickly!
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