Photosynthesis Lab directions

Photosynthesis Lab directions

by Jose Villafuerte

​You will use this Quizizz lesson to complete

Intro to Photosynthesis Lab WS

and

Intro to Photosynthesis Lab NOTES

By now each table should have

-1 Chromebook per table partner (2 per table)

-One Chromebook per table should have this quizizz open

-Both Chromebooks should have the gizmo "Photosynthesis Lab" open on the

Gizmo website is explorelearning.com

​

​

​Let's start with the notes...

​Answer the prior knowledge questions of your notes

​

​THEN, Read the following slides to complete the "photosynthesis background" section of your notes

Photosynthesis background​

During photosynthesis, plants use the energy of light to produce glucose(C6H12O6) from carbon dioxide (CO2), and water (H2O). Glucose is a simple sugar that plants use for energy and as a building block for larger molecules.  

A by-product of photosynthesis is oxygen. Plants use some of the oxygen they produce, but most of it is released. In the Photosynthesis Lab Gizmo, you can monitor the rate of photosynthesis by measuring oxygen production.  

​Now that you are familiar with photosynthesis

​let's get you familiar with the gizmo.

​NOTE: towards the bottom of your notes I have circled all the important parts of the gizmo. Use it if you are not sure what to click on the gizmo

​

​Get your Photosynthesis Lab WS ready. We will start answering questions on there on the next slide

​Work with your table partner to answer questions 1-5 on your WS

​

​*Remember to follow the directions on your WS on the Gizmo to get the answer

​

​When you finish all 5 questions go to the next slide

Now you will take turns answering some of the questions you answered in your WS

​

​

​One partner answers and then gives the Chromebook to the next person

​

​Let's start with question 2

Multiple Choice

At 20% light intensity: Oxygen production?

• Increased

• decreased

Multiple Choice

 At 40% light intensity: Oxygen production?

• Increased

• decreased

Multiple Choice

At 60% light intensity: Oxygen production?

• Increased

• No change

Multiple Choice

  At 80% light intensity: Oxygen production?

• Increased

• No change

Answer for question 3

​More Oxygen production

=

Higher rate of photosynthesis

Multiple Choice

Question 4A: At temp (15) O2 production is

• None

• Low

• High

Multiple Choice

Question 4A: At temp (50) O2 production is

• None

• Low

• High

Multiple Choice

Question 4A: At temp (25) O2 production is

• None

• Low

• High

Multiple Choice

Question 4B: At CO2 (0ppm) O2 production is

• None

• Low

• High

Multiple Choice

Question 4B: At CO2 (300ppm) O2 production is

• None

• Low

• High

Multiple Choice

Question 4B: After CO2 (300) is there any change in O2 production?

• yes

• No

​Before we move on to Actitivy A

​Let's complete the next section of the notes; Photosynthesis formula(Activity A notes)

​

​Read this section of the notes and then go to the next slide. DO NOT write anything in the blanks yet

​Look at the blanks in the photosynthesis formula

Your table will take turns filling in the blanks here

​

​THEN, you will write them in your notes.

​

​go to the next slide

Multiple Choice

What is blank #1

• glucose

• water

• carbon dioxide

• Oxygen

Multiple Choice

What is blank #2

• glucose

• water

• carbon dioxide

• Oxygen

Multiple Choice

What is blank #3

• glucose

• water

• carbon dioxide

• Oxygen

Multiple Choice

What is blank #4

• glucose

• water

• carbon dioxide

• Oxygen

​Photosynthesis formula(Activity A notes)

Copy the correct answers to your notes

​Glucose

​Now you will work on Activity A (Grab your WS)

​-Set up your gizmo: Follow instructions inside the Activity A box

​-Answer #1; You shouldn't click anything on your gizmo for this question. Remember a hypothesis is an educated guess

​-Now work with your table partner to answer question #2: You SHOULD click different things in your gizmo to find the ideal conditions.

​ *HINT: How do you know what are the ideal conditions for photosynthesis? Remember the connection between photosynthesis and oxygen production (if you forgot: question 3 of gizmo warm-up)

​

​Now work with your table partner to answer question #3

​

​NOTE: Your answers should be based on what you have observed so far on the gizmo

Open Ended

A. Why would it be hard to find the ideal light intensity if the temperature were very hot or cold?

Open Ended

B. Why would it be hard to find the ideal CO2 level if the light intensity were very low?

Before we move on to Activity B​

​-Let's finish the notes

​-Read the following slides to complete the "Color and Photosynthesis(Activity B notes)" section of your notes

​Color and Photosynthesis(Activity B notes)

​Light is made up of wavelengths of light, and each wavelength is a particular color. Visible light ranges from 400 to 700 nm (The symbol “nm” stands for nanometers. A nanometer is a billionth of a meter).

The color we see is a result of which wavelengths are reflected back to our eyes. Example: A red shirt absorbs all wavelengths except RED.

Plants use a green pigment called chlorophyll to absorb light and convert its energy into a form that the plant can use; Glucose. Chlorophyll gives plants their green color.

Before we move on to Activity B...

​-You might not finish Activity B but do as much as you can or you will lose participation points

​-When the last 7 minutes of the class begin: put the Chromebooks away and clean your area

​Now you will work on Activity B (Grab your WS)

​-Set up your gizmo: Follow instructions inside the Activity B box

​-Answer questions 1-4 with your table partner

​-When you need the last graph on question 4 go to the next slide

​Question 4:

All wavelengths

graph

Now use the "All wavelengths graph" to answer 5&6

​Finally, answer question #7

​Hint: review how color works in your notes