Photosynthesis and Chemosynthesis Only occurs in

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: Calvin Cycle:
The “synthesis” part
Light reactions: ATP provided energy to
The “photo” part produce_________.
Uses sunlight to make_____.

Textbook website video:
http://my.hrw.com/hssc_2012/hmd_na_bio/nsmedia/animated/bio_ch04_0104_ab
_photosyn.swf

http://www.youtube.com/watch?v=YeD9idmcX0w

Photosynthesis Video

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