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Welcome Back Fellow Dodgers!
Thank a plant today for the oxygen that you breathe!
Collecting Observing Stomata in Leaves Lab.
Collected Observing Diffusion and Osmosis Lab
Love Letter to Photoautotroph is due tomorrow – Friday,
February 20, 2015 either by hard copy or via email. If via
email – make sure that you write Photoautotroph in the
subject.
• Unit 6: Photosynthesis and Structure of Leaves Test is
scheduled for Next Week!
February 19, 2015
February 20, 2015
• Review differences between C3, C4 and CAM
plants.
• Examine the structure of the chloroplast
• Relate the structure of the chloroplast to the
biochemical pathway of photosynthesis.
• Relate the structure of chloroplast to pigments.
• Introduce the importance of pigments to
photosynthesis.
Goals for Today
• Form Learning Pods
• Within your pods you will be collaborating to determine
the answers.
• Discussion and collaboration are the keys to success.
• Your group is collectively responsible for the answers;
however, each of you is individually responsible for
recording all information within your notes.
Collaborating Leads to
Higher Thinking
PEP Carboxylase vs. Rubisco
1.
2.
3.
Present in C3, C 4 and CAM plants
Participates in Calvin Cycle of Photosynthesis
Produces a four carbon stable compound that acts as a reservoir
of Carbon Dioxide for the Calvin Cycle.
4. Produces an acid that acts as a reservoir of Carbon Dioxide for
the Calvin Cycle.
5. Found in C4 plants
6. Found in CAM plants
7. Eliminates photorespiration.
8. Oxygen competes with Carbon dioxide for its active site.
9. An adaptation that enables plants to live in variable environments.
10. Plants that keep their stomata closed do not worry about build up
of oxygen within their leaves due to this enzyme.
Directions: For each statement below,
determine if the statement relates to
PEP carboxylase only, Rubisco only,
or BOTH.
1.
2.
3.
Present in C3, C 4 and CAM plants Rubisco
Participates in Calvin Cycle of Photosynthesis Rubisco
Produces a four carbon stable compound that acts as a reservoir of
Carbon Dioxide for the Calvin Cycle. PEP Carboxylase
4. Produces an acid that acts as a reservoir of Carbon Dioxide for the
Calvin Cycle. PEP Carboxylase
5. Found in C4 plants BOTH
6. Found in CAM plants BOTH
7. Eliminates photorespiration. PEP Carboxylase
8. Oxygen competes with Carbon dioxide for its active site. Rubisco
9. An adaptation that enables plants to live in variable environments. PEP
Carboxylase
10. Plants that keep their stomata closed do not worry about build up of
oxygen within their leaves due to this enzyme. PEP Carboxylase
Answers
• Draw and label the structure of a chloroplast. (Unit 4)
• How does the structure of the chloroplast provide
evidence for the evolution of eukaryotic cells?
• In which structures within plants will you find
chloroplasts?
• Which cells within plants contain chloroplasts? Be
specific?
• How is the chloroplast structure related to
photosynthesis?
• How is the chloroplast structure related to pigments?
Chloroplast and
Photosynthesis
Draw and label the structure of a chloroplast. (Unit 4)
• Theory of Endosymbiosis
The Theory of Endosymbiosis states that the chloroplast
and mitochondria were once free – living bacteria. One
bacteria surrounded and engulfed another bacteria. The
combined cells lost their independence and evolved into a
eukaryotic cell.
• The chloroplast has a double membrane, ribosomes, a
single, circular DNA and is the same size as a bacteria.
How does the structure of the chloroplast provide
evidence for the evolution of eukaryotic cells?
• Photosynthesis takes place within the
leaves of plants.
• Chloroplasts are found within the
Palisades layer cells and within
spongy layer cells.
In which structures within plants will you find chloroplasts?
Which cells within plants contain chloroplasts? Be specific?
• The Light Dependent Reactions take place
within the Thylakoids. The Light
Independent Reactions take place within the
stroma.
• The pigments are found within the
thylakoids. We know this because the Light
Dependent Reactions take place within the
thylakoids and pigments transform light
energy into excited electrons!
How is the chloroplast structure related to photosynthesis?
How is the chloroplast structure related to pigments?