How Well Do I Know These Words? Photosynthesis
WORD
1.
Autotroph
2.
Heterotroph
3.
ATP
4.
Photosynthesis
5.
CO2
6.
Chlorophyll
7.
Chloroplast
8.
Thylakoid
9.
Photosystem
10. Stroma
11. Granum
+
12. NADP
13. NADPH
14. ADP
15. Light-dependent
reactions
16. ATP synthase
17. Calvin cycle
18. Water
19. Oxygen
20. Wavelength
This is what I know
Chapter – Section:
Page
Summarize Book Definition
My Picture/Diagram
Name: _____________________________________________________
Date: __________ Period: ______
SUPPORT or REFUTE (PHOTOSYNTHESIS)
Direction: Using your textbook find the evidence that supports or refutes your responses. List the page(s), paragraph,
and line where you found your evidence.
STATEMENT
SUPPORT/REFUTE
1. Heterotrophs are organisms that capture energy from
sunlight or chemicals and use it to produce its own food
from organic compounds.
2. Cellular respiration is the process by which plants and
some other organisms use sunlight to convert water and
carbon dioxide into oxygen and high energy
carbohydrates.
3. ATP is made of adenine, ribose sugar, and 2
phosphates, and it is made in the stroma of mitochondria.
4. The H in the water molecule becomes part of the
glucose molecule after the Calvin cycle.
5. Light independent reactions of photosynthesis use light
energy to produce ATP and NADPH and release CO2.
6. ATP synthase is a plant that uses energy from H ions to
join ATP and a phosphate group to make NADPH.
7. Calvin Cycle is part of photosynthesis that is also called
light-dependent reactions.
8. During Calvin Cycle the energy from ATP and NADPH is
used to build high energy sugar molecules.
9. The products of the light-dependent reactions are ADP,
NADP, and water.
10. The H in the water molecule end up attached to
NADPH following the light –dependent reaction.
11. Carbon dioxide is one of the reactants in the lightdependent reactions.
12. Carbon dioxide, ATP, and NADPH are the reactants in
the Calvin Cycle.
13. The enzymes for the light-dependent reaction are
located in the thylakoid membrane.
14. The Calvin cycle happens in the stroma.
1.
15. Carbon dioxide is the waste gas given off by the lightdependent reactions.
16. The H ions come from the splitting of water molecules
that are added to NADP to make NADPH.
17. In addition to water and carbon dioxide, chlorophyll
and oxygen are required for photosynthesis to happen.
18. A thylakoid is the organelle where photosynthesis
happens.
19. The O atom in water is given off as oxygen gas to the
atmosphere when it is split during the light independent
reactions.
20. Starch is the product of the Calvin cycle.
15.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
16.
17.
18.
19.
20.
Topic:
Name:
Chapter:
Period:
Pages:
Questions:
1. What is the difference between an
autotroph and a heterotroph?
2. Where, when and how is oxygen produced
during photosynthesis?
3. What is the relationship between pigment
and chlorophyll?
4. How is light energy related to wavelength?
5. As a molecule of water, explain your
journey through a plant from the moment of
entry in the root to your involvement in
photosynthesis.
6. Why are the stroma and thylakoids
important to a plant? Where are these
structures located in the plant cell?
7. If you were a reporter, explain how the
Calvin Cycle serves as a bridge between
carbon in the atmosphere and carbon-based
molecules in the food you eat.
8. Draw the chloroplast and show where &
how the light-reactions occur as well as the
Calvin cycle.
Summary:
Date:
Notes/Answers – This is what I understand for each question:
Name: ___________________________________________________________
Section 8–2 Photosynthesis: An Overview (pages 204–207)
________________ Period: ______
Date: _______________________
Section 8–3 The Reactions of Photosynthesis (pages 208–214)
208
Introduction (page 204)
1. What occurs in the process of photosynthesis?
Inside a Chloroplast (page 208)
1. Chloroplasts contain saclike photosynthetic membranes called ________________ .
The Photosynthesis Equation (page 206)
2. Write the overall equation for photosynthesis using words:
2. What is a granum?
3. The region outside the thylakoid membranes in the chloroplasts is called the
____________________________________.
4. What are the two stages of photosynthesis called?
a. ___________________________________________________________
b. _____________________________________ , or ___________________________.
3. Write the overall equation for photosynthesis using a chemical formula:
4. Photosynthesis uses the energy of sunlight to convert ____________ and
________ _______ into __________ and high-energy ____________
_______________ .
Light and Pigments (page 207)
5. What does photosynthesis require in addition to water and carbon dioxide?
5. Complete the illustration of the overview of photosynthesis by:
by
a) Writing the names of the products and the reactants of the process,
process and color the
boxes as follows: green for reactants,
eactants, blue for products.
b) You need to identify the structures found in the chloroplast, and color those boxes
red.
c) Identify where the reactions of photosynthesis occur.
6. Plants gather the sun’s energy with light-absorbing
absorbing molecules called ____________.
7. What is the principal pigment of plants and what is its function
function?
8. Describe light in terms of wavelength, and list the regions of the visible spectrum in
which chlorophyll absorbs light very well.
9. Why do plants appear green to our eyes?
10. Is there a difference between chlorophyll a and chlorophyll b? Explain
11. Look carefully at Figure 88–4. What
important ideas does this illustration
communicate?
STOP: REVIEW YOUR ANSWERS WITH
YOUR PARTNER
PARTNER.
Electron Carriers (page 209)
6. When sunlight excites electrons in chlorophyll,
hyll, what happens to these electrons?
If there are any discrepancies in your
answers, talk to your teacher.
7. What is a carrier molecule and why do plants need them?
them
4
8. Name the carrier molecules involved in photosynthesis and how do they work?
12. Use the diagram to find the order of the events that occur during the lightdependent reactions.
Light-Dependent Reactions (pages 210–211)
+
___ ATP synthase produces ATP as the concentration of H builds up outside the
thylakoid exterior by allowing the ions to enter the thylakoid.
9. Circle the letter of each sentence that is true about the light-dependent reactions. If
it is false, change it to a true statement:
a. conversion of ATP into ADP. _____________________________________________
___ High-energy electrons move through the electron transport chain from
photosystem II to photosystem I.
b. production of water molecules. __________________________________________
___ Oxygen is left behind and later release as a waste product outside the thylakoid.
c. conversion of oxygen into carbon dioxide. __________________________________
___The outside of the membrane is filled up with many H ions than inside.
+
+
d. conversion of NADPH into NADP . ________________________________________
___ Photosynthesis begins when pigments in photosystem II absorb light.
10. Where do the light-dependent reactions take place? ________________________
___The difference in charges across the thylakoid membrane provides the energy to
make ATP.
11. Label the diagram below:
___ Pigments in photosystem I use energy from light to release electrons removed
from a water molecule to continue supplying high-energy electrons to the process.
+
+
___ NADP picks up high-energy electrons and H ions and becomes NADPH
13. How does ATP synthase produce ATP?
14. Earth’s atmosphere, billions of years ago, contained very little oxygen. Today,
Earth’s atmosphere contains 21 percent oxygen gas. What process do you think
increased the percentage of oxygen in the atmosphere over time?
15. Why is water important to a plant?
5
Name: ____________________________ Date: __________ Period: _____
The Calvin Cycle (pages 212–214)
1. What molecules does the Calvin cycle use to produce high-energy sugars?
2. Why the reactions of the Calvin cycle are also called the light-independent
reactions?
3. Circle the letter of each statement that is true about the Calvin cycle. If it is false,
change the word that will make the statement true.
a. The main products of the Calvin cycle are six carbon dioxide molecules.
b. Carbon dioxide molecules enter the Calvin cycle from the stroma.
c. Energy from water and high-energy electrons from ATP are used to convert 3carbon molecules into higher-energy forms.
d. The Calvin cycle uses six molecules of carbon dioxide to produce a single 6-carbon
sugar molecule.
4. Why do heterotrophs benefit from the Calvin cycle?
Factors Affecting Photosynthesis (page 214)
10. What are three factors that affect the rate at which photosynthesis occurs?
a. ___________________________________________________________
b.___________________________________________________________
c. ___________________________________________________________
5. What does it mean that the Calvin cycle produces other compounds other than
sugar?
11. Will increasing the intensity of light decrease the rate of photosynthesis? Explain
e. The Calvin cycle occurs in the thylakoids and requires light energy.
12. Analyzing Data: Rates of Photosynthesis (page 213)
1.
6. Why are the light-dependent reactions required for the Calvin cycle to occur?
7. Where do ADP and NADP go after they perform their function in the Calvin cycle?
2.
8. Fill-in the blanks, label the missing components, and color the diagram as follows:
a. carbon atoms are black
b. ATP and NADPH are yellow
3.
9. Using this diagram, summarize the events of the Calvin cycle:
4.
6
Effort Rubric:
4: The student works on tasks until completed and continues working on
the task even when difficulties arise or a solution is not
immediately evident. The student views difficulties that arise as
opportunities to strengthen understanding by using the text.
Effort and Achievement Chart
Please fill out this chart for the following two weeks. Create another one like
this one for the following two weeks on your own piece of paper. Graph your
results.
Student Name
Class Assignment
Effort Achievement
3: The student works on tasks until completed and continues working on
the task even when difficulties arise or a solution is not
immediately evident. Student will ask teacher to help out.
Date:
2: The student puts some effort into the task but stops working when
difficulties arise. Student will wait for teacher to help out.
Date:
1: The student puts very
ery little effort into the task, and finds excuses.
0: Student does not show any effort to complete any task in class.
class
Date:
Achievement Rubric:
4: The student exceeded the objectives of the task or lesson.
Date:
3: The student met the objectives of the task or lesson.
2: The student met a few of the objectives of the task or lesson but did
not meet others.
1: The student did not meet the objectives of the task or lesson.
0: The student did not do the task.
Date:
Student Graph of Effort and Achievement:
7