02: GENERAL BIOLOGY SEMESTER 02
REVIEWER // Q U A R T E R 3 WPSPF
PHOTOSYNTHESIS TO STRUCTURAL
PHOTOSYNTHESIS MATERIALS
ESSENCE OF PHOTOSYNTHESIS
↪ All cells require a SOURCE OF
ENERGY to do their work and
reproduce.
↪ Plants accumulate energy for later
use by building SUGAR molecules
for short-term energy storage or
STARCH for longer-term energy
storage.
● The first products of photosynthesis
may be converted to DISACCHARIDES
PHOTOSYNTHESIS IN PLANTS (sucrose), POLYSACCHARIDES
(starch), and other forms of
CARBOHYDRATES.
● Sugar produced by plants is converted
to WOOD, FIBERS (cotton and linen),
and other structural materials.
● In photosynthesis, energy from the sun
is harnessed and, with the aid of
CHLOROPHYLL, is transformed from
PHOTOSYNTHESIS IN ORGANISMS LIVING IN
light energy to biochemical energy in
THE OCEAN
the bonds between atoms in a sugar
molecule.
● It is estimated that all of the world's
green organisms together produce
between 100 billion and 200 billion of
sugar each year.
● Photosynthesis also provides
molecular oxygen for the atmosphere.
● It is estimated that between 40% and
50% of the oxygen in the atmosphere
originates in oceans and lakes.
, 02: GENERAL BIOLOGY SEMESTER 02
REVIEWER // Q U A R T E R 3 WPSPF
DISCOVERY OF PHOTOSYNTHESIS molecule is produced in a chloroplast,
OXYGEN GAS IS RELEASED AS A BY-
PRODUCT.
PHOTOSYNTHESIS
1. JAN INGENHOUSZ (1730-1799)
↪ A Dutch physiologist, biologist and
chemist who repeated Priestley's
experiment and showed that the ● ANABOLIC (small molecules
air was restored only when green combined)
parts of plants were receiving ● ENDERGONIC (stores energy)
SUNLIGHT. ● CARBON DIOXIDE (CO2) requiring
process that uses light energy
(photons) and water (H2O) to produce
organic macromolecules (glucose).
PLANTS
2. JEAN SENEBIER (1742-1809)
↪ is a Swiss pastor who discovered
that the photosynthetic process
required CARBON DIOXIDE.
3. NICHOLAS THEODORE DE SAUSSURE
(1767-1845)
↪ is a Swiss chemist who showed ● Autotrophs – produce their own food
that WATER was involved in the (glucose)
photosynthetic process. ● Process called photosynthesis
● Mainly occurs in the leaves:
A. stoma - pores
OVERALL REACTION OF PHOTOSYNTHESIS B. mesophyll cell
➔ Less than 1% of all the water absorbed
by plants is used in photosynthesis;
most of the remainder is transpired or
incorporated in the cytoplasm,
vacuoles, and other materials.
➔ Water is the main source of
ELECTRONS in photosynthesis as well as
● The light energy stored in a simple the OXYGEN released as by- product.
sugar molecule is produced from
carbon dioxide present in the air and
water absorbed by plant.
● When the carbon dioxide and water
are combined and ultimately sugar
REVIEWER // Q U A R T E R 3 WPSPF
PHOTOSYNTHESIS TO STRUCTURAL
PHOTOSYNTHESIS MATERIALS
ESSENCE OF PHOTOSYNTHESIS
↪ All cells require a SOURCE OF
ENERGY to do their work and
reproduce.
↪ Plants accumulate energy for later
use by building SUGAR molecules
for short-term energy storage or
STARCH for longer-term energy
storage.
● The first products of photosynthesis
may be converted to DISACCHARIDES
PHOTOSYNTHESIS IN PLANTS (sucrose), POLYSACCHARIDES
(starch), and other forms of
CARBOHYDRATES.
● Sugar produced by plants is converted
to WOOD, FIBERS (cotton and linen),
and other structural materials.
● In photosynthesis, energy from the sun
is harnessed and, with the aid of
CHLOROPHYLL, is transformed from
PHOTOSYNTHESIS IN ORGANISMS LIVING IN
light energy to biochemical energy in
THE OCEAN
the bonds between atoms in a sugar
molecule.
● It is estimated that all of the world's
green organisms together produce
between 100 billion and 200 billion of
sugar each year.
● Photosynthesis also provides
molecular oxygen for the atmosphere.
● It is estimated that between 40% and
50% of the oxygen in the atmosphere
originates in oceans and lakes.
, 02: GENERAL BIOLOGY SEMESTER 02
REVIEWER // Q U A R T E R 3 WPSPF
DISCOVERY OF PHOTOSYNTHESIS molecule is produced in a chloroplast,
OXYGEN GAS IS RELEASED AS A BY-
PRODUCT.
PHOTOSYNTHESIS
1. JAN INGENHOUSZ (1730-1799)
↪ A Dutch physiologist, biologist and
chemist who repeated Priestley's
experiment and showed that the ● ANABOLIC (small molecules
air was restored only when green combined)
parts of plants were receiving ● ENDERGONIC (stores energy)
SUNLIGHT. ● CARBON DIOXIDE (CO2) requiring
process that uses light energy
(photons) and water (H2O) to produce
organic macromolecules (glucose).
PLANTS
2. JEAN SENEBIER (1742-1809)
↪ is a Swiss pastor who discovered
that the photosynthetic process
required CARBON DIOXIDE.
3. NICHOLAS THEODORE DE SAUSSURE
(1767-1845)
↪ is a Swiss chemist who showed ● Autotrophs – produce their own food
that WATER was involved in the (glucose)
photosynthetic process. ● Process called photosynthesis
● Mainly occurs in the leaves:
A. stoma - pores
OVERALL REACTION OF PHOTOSYNTHESIS B. mesophyll cell
➔ Less than 1% of all the water absorbed
by plants is used in photosynthesis;
most of the remainder is transpired or
incorporated in the cytoplasm,
vacuoles, and other materials.
➔ Water is the main source of
ELECTRONS in photosynthesis as well as
● The light energy stored in a simple the OXYGEN released as by- product.
sugar molecule is produced from
carbon dioxide present in the air and
water absorbed by plant.
● When the carbon dioxide and water
are combined and ultimately sugar
