Pop & Ag #____
Photosynthesis Presentation Notes
Integrated Science 3
Additional
Notes
10/15
Name:
Per:
A. Purpose of Photosynthesis:
Where do plants get the energy they need to produce food?
B. __________ energy is converted into _____________ energy through photosynthesis.
1. Plants use ________________and ________________to make
________________
2. Plants use _______________ as materials for building __________ and energy to
run cells.
3. Humans use sugars for:
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C. Location of Photosynthesis
1. Occurs in the _________ of green plants
2. Occurs in specific cells in the ______________ layer of the leaf
3. Occurs in __________________ - called ________________ - within the cells of
the middle layer of the leaf
D. Photosynthesis net formula:
E. Diagram of Photosynthesis overview:
F. Two Reactions in Photosynthesis
1. Light-dependent reactions:
2. Light-independent reactions:
G. Light-Dependent Reactions
1. AKA _____________________________ or photochemical reactions
2. Occurs in the ____________________________ of the chloroplast
3. ________________ is absorbed by ________________ pigments in __________
located in the thylakoid membranes inside the chloroplast.
__________ is split into 2e-, 2 H+, and 1 O2 at Photosystem _______.
4. Electrons move through the Electron Transport Chain from Photosystem ______
to Photosystem _______.
Energy from these e- transport H+ from ____________ to __________________
Energy splits ____________ into 2 ______ + _______ + 2______
5. Pigments in ______________________ use energy from light to convert ______
to ________________ which will be used in the next step of photosynthesis.
6. _________ (which will also be used in the next step of PS) is produced from
______ using the energy in the difference of hydrogen ions between the sides of
the membrane.
7. _______________________ is the enzyme that converts ADP to ATP.
Label the light-dependent reaction diagram below:
Additional
Notes
H. A few words on ATP
1. ATP, which stands for _______________________________________, is
energy usable by cells.
Who uses ATP?
2. Energy is ______________ and ________________ when phosphate bonds are
broken.
Which stores more energy, ADP or ATP?
I. Light-Independent Reactions: Overview
1. The Light-Independent Reaction is also called the ________________ reactions,
_______________ cycle, or photochemical reactions
2. The Light-Independent reaction is a __________ phase cycle that starts and
finishes with a _____-__________ molecule
3. The Light-Independent Cycle net reaction:
J. Calvin Cycle basics:
1. Takes place in the ______________ of the ___________________
2. The cycle gets its energy to conduct the reaction via high-energy ___________
from ___________ and _____________
3. The NADPH and ATP are two of the products of the _____________________
reactions
Why does the plant convert NADPH and ATP into another energy storage?
What’s the point?
K. Calvin Cycle- a step-by-step look:
1. 6 ______ molecules enter the cycle from the atmosphere. The CO2 molecule
combines with 6 _____________ molecules. Result: 12 _____________
2. The 12 ____________ molecules are then converted into higher-energy forms.
The energy for this conversion comes from ________ and _________.
3. 2 of the 12 _______________ molecules are removed from the cycle o be used to
make ________________ and other compounds the cell/plant may need.
4. The remaining 10 _________ molecules are then converted back into 6 ________
molecules. These molecules then continue through the Calvin Cycle and combine
with _____ new CO2 molecules to begin the next cycle.
Summary: