Photosynthesis Light and Dark Reactions

10thScience45 min

Learning Objective

I can compare and contrast the light and dark reactions of photosynthesis.

Lesson Flow

Watch Video

8 min

Photosynthesis (UPDATED)

Amoeba Sisters

Guided Notes

9 min

Key concepts students will learn:

  • The reactants (inputs) of photosynthesis are included in the products (outputs) of cellular respiration, and the products (outputs) of photosynthesis are included in the reactants (inputs) of cellular respiration.

  • The two major reactions that occur in the chloroplast that, together, make up photosynthesis are the light dependent reactions and the light independent reactions.

  • In CAM photosynthesis, plants open their stomata at night to capture carbon dioxide and chemically store it, then use it the next day when the sun is shining but their stomata are closed.

Practice

14 min

9 questions • Multiple choice & Short answer

Exit Ticket

5 min

Compare and contrast the light-dependent and light-independent reactions (Calvin Cycle) of photosynthesis. Include where each reaction occurs within the chloroplast and what each reaction produces.

Teacher Guide

Get the complete package:

  • Answer keys for all questions
  • Differentiation strategies
  • Extension activities
  • Printable student handouts

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