Review of Energy-Storing Processes:
Photosynthesis and
Chemosynthesis
Only occurs in_____________.
Chemosynthesis
Certain bacteria can use the energy from volcanic
compounds to produce energy- storing organic
compounds.
Chemosynthetic bacteria can be found at the
hydrothermal vents at fault lines deep beneath the
ocean.
Chemosynthesis and photosynthesis both produce energy-storing
molecules (food).
In photosynthesis, the energy comes from the sun. While in
chemosynthesis the energy comes from certain chemical such as sulfuric
compounds from volcanoes.
Location of Hydrothermal Vents
Photosynthesis
Uses the sun’s light energy to build a sugar
from carbon dioxide and water.
Overall formula:
6CO2 + 6 H2O
_________________
Discuss with your table partner
Chlorophyll is a pigment that absorb certain colors
of light and reflects others.
Analyze the graph below and determine which
colors of light are reflected by chlorophyll (a and b)
Absorbs
_________
_________
Reflects
__________
Chlorophyll is found in the
chloroplast, which is the
organelle that is the site of
photosynthesis.
2 Parts of Photosynthesis:
Light reactions:
The “photo” part
Uses sunlight to make_____.
Calvin Cycle:
The “synthesis” part
ATP provided energy to
produce_________.
Textbook website video:
http://my.hrw.com/hssc_2012/hmd_na_bio/nsmedia/animated/bio_ch04_0104_ab
_photosyn.swf
Photosynthesis Video
http://www.youtube.com/watch?v=YeD9idmcX0w
Overview of the role of ATP in
Photosynthesis vs. Cellular Respiration
In photosynthesis, ATP is produced as an __________
in the process of producing a sugar.
• The sun’s light energy is used to make ATP in the
light reactions, but then these ATP are used to
produce a sugar.
Sugars are more efficient than ATP for ______energy.
Each glucose can be used to make 36 ATP in cellular
respiration.
This is like a barrista converting her tips to larger bills
Overview of the role of ATP in
Photosynthesis vs. Cellular Respiration
In cellular respiration (and fermentation) the
_________________________.
• The larger amount of energy stored in food is
converted into the ATP “energy currency”.