Life on Earth: At a Glance

Life on Earth
Audesirk & Audesirk
Prentice-Hall, Inc.

Photosynthesis: An Overview: Leaves and chloroplasts are adaptations for photosynthesis.

The Light-Dependent Reactions: Converting Light to Chemical Energy
During photosynthesis, light is first captured by pigments in chloroplasts.
The light-dependent reactions occur in clusters of molecules called photosystems.

The Light-Independent Reactions: Securing Chemical Energy in Glucose Molecules
The C₃ cycle captures carbon dioxide.
Carbon fixed during the C₃ cycle is used to synthesize glucose.

The Relationship between the Light-Dependent and the Light-Independent Reactions

Water, CO₂, and the C₄ Pathway
When stomata are closed to conserve water, wasteful photorespiration occurs.
C₄ Plants reduce photorespiration using a two-stage carbon fixation process.
C₃ and C₄ plants are adapted to specific environmental conditions.
The Light-Dependent Reactions: Converting Light to Chemical Energy: During photosynthesis, light is first captured by pigments in chloroplasts.
The light-dependent reactions occur in clusters of molecules called photosystems.

The Light-Independent Reactions: Securing Chemical Energy in Glucose Molecules
The C₃ cycle captures carbon dioxide.
Carbon fixed during the C₃ cycle is used to synthesize glucose.

The Relationship between the Light-Dependent and the Light-Independent Reactions

Water, CO₂, and the C₄ Pathway
When stomata are closed to conserve water, wasteful photorespiration occurs.
C₄ Plants reduce photorespiration using a two-stage carbon fixation process.
C₃ and C₄ plants are adapted to specific environmental conditions.; The light-dependent reactions occur in clusters of molecules called photosystems.

The Light-Independent Reactions: Securing Chemical Energy in Glucose Molecules
The C₃ cycle captures carbon dioxide.
Carbon fixed during the C₃ cycle is used to synthesize glucose.

The Relationship between the Light-Dependent and the Light-Independent Reactions

Water, CO₂, and the C₄ Pathway
When stomata are closed to conserve water, wasteful photorespiration occurs.
C₄ Plants reduce photorespiration using a two-stage carbon fixation process.
C₃ and C₄ plants are adapted to specific environmental conditions.
The Light-Independent Reactions: Securing Chemical Energy in Glucose Molecules: The C₃ cycle captures carbon dioxide.
Carbon fixed during the C₃ cycle is used to synthesize glucose.

The Relationship between the Light-Dependent and the Light-Independent Reactions

Water, CO₂, and the C₄ Pathway
When stomata are closed to conserve water, wasteful photorespiration occurs.
C₄ Plants reduce photorespiration using a two-stage carbon fixation process.
C₃ and C₄ plants are adapted to specific environmental conditions.; Carbon fixed during the C₃ cycle is used to synthesize glucose.

The Relationship between the Light-Dependent and the Light-Independent Reactions

Water, CO₂, and the C₄ Pathway
When stomata are closed to conserve water, wasteful photorespiration occurs.
C₄ Plants reduce photorespiration using a two-stage carbon fixation process.
C₃ and C₄ plants are adapted to specific environmental conditions.
The Relationship between the Light-Dependent and the Light-Independent Reactions
Water, CO₂, and the C₄ Pathway: When stomata are closed to conserve water, wasteful photorespiration occurs.
C₄ Plants reduce photorespiration using a two-stage carbon fixation process.
C₃ and C₄ plants are adapted to specific environmental conditions.; C₄ Plants reduce photorespiration using a two-stage carbon fixation process.
C₃ and C₄ plants are adapted to specific environmental conditions.; C₃ and C₄ plants are adapted to specific environmental conditions.

Designed in cooperation with Andrew Stull and Steven Brunasso.

Last Update - July 25, 1997