Photosynthesis - Let it Lighten Up Your Day!
Here are the objectives we will be studying in our journey into photosynthesis:
2a. I can state the overall goal of photosynthesis, the organelle in which it occurs, and its two main stages.
2b. I can describe the products and reactants of photosynthesis.
2c. I can make connections between what happens in the two main stages of photosynthesis.
2a. I can state the overall goal of photosynthesis, the organelle in which it occurs, and its two main stages.
2b. I can describe the products and reactants of photosynthesis.
2c. I can make connections between what happens in the two main stages of photosynthesis.
How will we learn these objectives?
1. By doing the Juno activities and reading for Photosynthesis. If you haven't done these, you need to go to Juno and do them ASAP!
2. By doing a Vocabulary Word Sort and Summary Activity to make sure you understand the concepts.
3. By doing the Photosynthesis Cafe Choice Menu below.
2. By doing a Vocabulary Word Sort and Summary Activity to make sure you understand the concepts.
3. By doing the Photosynthesis Cafe Choice Menu below.
Objective #2e Activity
Objective #2e: I can analyze factors that affect the rate of photosynthesis.
1. Read the paragraph below, which is from p. 103 of your textbook:
Photosynthesis is directly affected by various environmental factors.
The most obvious of these factors is light. In general, the rate of
photosynthesis increases as light intensity increases until all the
pigments are being used. At this saturation point, the reactions of
the Calvin cycle cannot proceed any faster. The overall rate of photosynthesis
is thus limited by the slowest step, which occurs in the
Calvin cycle. The carbon dioxide concentration affects the rate of
photosynthesis in a similar manner. Once a certain concentration of
carbon dioxide is present, photosynthesis cannot proceed any faster.
Photosynthesis is most efficient within a certain range of temperatures.
Like all metabolic processes, photosynthesis involves
many enzyme-assisted chemical reactions. Recall that unfavorable
temperatures may inactivate certain enzymes.
2. On a scrap piece of paper, explain how each of the following affects the rate of photosynthesis in ONE SENTENCE for each letter, based on what you read in the paragraph above:
a. Light intensity
b. Temperature
c. Carbon dioxide concentration
With a partner, share your sentences. Mrs. E will review this before everyone moves on to the next step.
3. Get a copy of the Photosynthesis Rate Lab from Mrs. E and find ONE other person to partner up with. Go to this site to do the lab, following the instructions. Be sure to answer the lab questions when you're finished.**
4. Go to Google Classroom. Find the assignment labeled "Waterweed Photosynthesis Lab" and click on it. Follow the directions in the document.
**Lab site not working? Try this one instead, and instead of "Light Color" make a table for "Temperature" instead.
1. Read the paragraph below, which is from p. 103 of your textbook:
Photosynthesis is directly affected by various environmental factors.
The most obvious of these factors is light. In general, the rate of
photosynthesis increases as light intensity increases until all the
pigments are being used. At this saturation point, the reactions of
the Calvin cycle cannot proceed any faster. The overall rate of photosynthesis
is thus limited by the slowest step, which occurs in the
Calvin cycle. The carbon dioxide concentration affects the rate of
photosynthesis in a similar manner. Once a certain concentration of
carbon dioxide is present, photosynthesis cannot proceed any faster.
Photosynthesis is most efficient within a certain range of temperatures.
Like all metabolic processes, photosynthesis involves
many enzyme-assisted chemical reactions. Recall that unfavorable
temperatures may inactivate certain enzymes.
2. On a scrap piece of paper, explain how each of the following affects the rate of photosynthesis in ONE SENTENCE for each letter, based on what you read in the paragraph above:
a. Light intensity
b. Temperature
c. Carbon dioxide concentration
With a partner, share your sentences. Mrs. E will review this before everyone moves on to the next step.
3. Get a copy of the Photosynthesis Rate Lab from Mrs. E and find ONE other person to partner up with. Go to this site to do the lab, following the instructions. Be sure to answer the lab questions when you're finished.**
4. Go to Google Classroom. Find the assignment labeled "Waterweed Photosynthesis Lab" and click on it. Follow the directions in the document.
**Lab site not working? Try this one instead, and instead of "Light Color" make a table for "Temperature" instead.