6.1 photosynthesis

Lesson Duration

  • T/W 10.23-24 (W12D2)
  • TH/F 10.25-26 (W12D3)

Class Materials

PRE-WORK

OUT-OF-CLASS Exploration

(Study Buddy's allowed)

  1. (MOVE to WarmUp) Access the 6.1 Photosynthesis Quizlet and complete the "LEARN" activity for lesson vocabulary. *Points will only be provided for this section.*
  2. Read '2.7 Photosynthesis' text
  3. Complete '2.7 Photosynthesis' worksheet
  4. Bring worksheet with you to class for Checkin help.
  • DEFINE photosynthesis as the process by which plants manufacture carbohydrates from raw materials using energy from light.
  • STATE the word equation for photosynthesis: carbon dioxide + water → glucose + oxygen, in the presence of light and chlorophyll.
  • STATE the balanced chemical equation for photosynthesis 6CO2 + 6H2O → C6H12O6 + 6O2.
  • EXPLAIN that chlorophyll transfers light energy into chemical energy in molecules, for the synthesis of carbohydrates.

EXPLAIN

INDEPENDENT Activity - No Talking

  1. Place lesson Pre-Work on your desk.
  2. Access the 6.1 Photosynthesis Quizlet and complete the "LEARN" activity for lesson vocabulary. *Points will only be provided for this section.*
  3. Complete the '6.1 Photosynthesis Checkin' found on Google Classroom.
  4. Turn in Pre-work and any Late assignments to inbox.
  5. Add upcoming Homework to your Agenda:
    • DUE TH/F 10.25-26 @ 745am: Unit 2 Scavenger Hunt.
    • DUE TH/F 10.25-26: Finish the Q&A if not done in class.
  6. When finished, raise your hand for the next activity!

class announcements

  • UNIT 2 Exam this week!
  • Moving to a "student-centered" experience - be sure to do your Homework every night ... it will be easier than you are used to :) We are saving the "tough stuff" for class. #DontGetLeftOut

Learning Objective

  • DEFINE photosynthesis as the process by which plants manufacture carbohydrates from raw materials using energy from light.
  • STATE the word equation for photosynthesis: carbon dioxide + water → glucose + oxygen, in the presence of light and chlorophyll.
  • STATE the balanced chemical equation for photosynthesis 6CO2 + 6H2O → C6H12O6 + 6O2.
  • EXPLAIN that chlorophyll transfers light energy into chemical energy in molecules, for the synthesis of carbohydrates.
  • OUTLINE the subsequent use and storage of the carbohydrates made in photosynthesis.
  • DEFINE the term limiting factor as something present in the environment in such short supply that it restricts life processes.
  • IDENTIFY & EXPLAIN the limiting factors of photosynthesis in different environmental conditions.
  • DESCRIBE the use of carbon dioxide enrichment, optimum light and optimum temperatures in glasshouses in temperate and tropical countries.

ALTERNATIVE TO PRACTICAL

  • INVESTIGATE the necessity for chlorophyll, light and carbon dioxide for photosynthesis, using appropriate controls.
  • INVESTIGATE and describe the effects of varying light intensity, carbon dioxide concentration and temperature on the rate of photosynthesis, e.g. in submerged aquatic plants.
  • USE hydrogencarbonate indicator solution to investigate the effect of gas exchange of an aquatic plant kept in the light and the dark.

Language Objective

  • DEVELOP a written interview skit based upon the principles of photosynthesis & limiting factors.

ENGAGE

QUESTION OF THE DAY ....

How do plants, like all living organisms, receive nourishment?

LECTURE - Raise Hands (0:15)

  • What is the basic definition of photosynthesis?
  • How does the process work? What comes next?
  • Why is it important to balance a chemical equation?
  • What would happen if there was not enough CO2 or H20?

ElABORATE

  • OUTLINE the subsequent use and storage of the carbohydrates made in photosynthesis.
  • DEFINE the term limiting factor as something present in the environment in such short supply that it restricts life processes.
  • IDENTIFY & EXPLAIN the limiting factors of photosynthesis in different environmental conditions.

Part 1: The Tonight Show - Focused Conversations (0:30)

    • Pretend that you are a news reporter and have found the very first talking plant on planet Earth. You have just invited it on the Tonight Show and are looking forward to your interview.
    • As a group (Mrs V to reveal), create an Interview Questionnaire that asks and answers the following questions. Use '2.10 Control of Photosynthesis' Class Set to help you.
      1. What does an 'autotroph' mean?
      2. How do you use and store carbohydrates?
      3. What are your limiting factors?
      4. In what environments do your limiting factors change?
    • When finished, turn in your interview Q&A's. You are creating your own copy for your notes :)


Part 2a: Alternative to Practical (0:15)

  • Watch the following video to learn more about "Testing Leaves for Starch"
  • Discuss what you learned with your group, especially about what the color changes mean. (You will complete an Independent Activity after your exam so this is your chance to prepare -- take notes!)
  • INVESTIGATE the necessity for chlorophyll, light and carbon dioxide for photosynthesis, using appropriate controls.
  • INVESTIGATE and describe the effects of varying light intensity, carbon dioxide concentration and temperature on the rate of photosynthesis, e.g. in submerged aquatic plants.
  • USE hydrogencarbonate indicator solution to investigate the effect of gas exchange of an aquatic plant kept in the light and the dark.

Part 2b: Alternative to Practical (post-test)

  • Re-watch the video above if needed to remind yourself of the information.
  • Access this assignment in Google Classroom. (The colored class set handout is linked in there as well!)

EXIT TICKET

  • Using the blank side of your Stoplight Form, write your first name and last initial.
  • Without looking at your notes, write down the balanced photosynthesis equation, and label the molecules that are:
    1. reactants
    2. inputs
    3. products
    4. limiting factors

HOMEWORK

  • DUE TH/F 10.25-26 @ 745am: Unit 2 Scavenger Hunt.
  • DUE TH/F 10.25-26: Finish the Q&A if not done in class.