Learn on PengiAmplify Science (California) Grade 7Chapter 1: Photosynthesis

Lesson 2: The Process of Photosynthesis

Key Idea Energy enters the ecosystem through producers . Plants and algae possess the unique ability to perform photosynthesis , a process that captures electromagnetic energy from sunlight.

Section 1

Capturing Sunlight

Key Idea

Energy enters the ecosystem through producers. Plants and algae possess the unique ability to perform photosynthesis, a process that captures electromagnetic energy from sunlight.

This process facilitates a critical energy transformation. Producers convert unstable light energy into stable chemical energy stored within bonds of molecules (ESMs). This stored energy serves as the foundational fuel for all other trophic levels.

Section 2

The Ingredients of Life

Key Idea

Producers synthesize Energy Storage Molecules (like glucose) through chemical reactions that require specific raw materials. The essential inputs are carbon dioxide from the air and water from the environment.

These reactants are non-negotiable. Without a sufficient supply of both carbon dioxide and water, the chemical reaction cannot proceed, regardless of the amount of sunlight available.

Lesson overview

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Section 1

Capturing Sunlight

Key Idea

Energy enters the ecosystem through producers. Plants and algae possess the unique ability to perform photosynthesis, a process that captures electromagnetic energy from sunlight.

This process facilitates a critical energy transformation. Producers convert unstable light energy into stable chemical energy stored within bonds of molecules (ESMs). This stored energy serves as the foundational fuel for all other trophic levels.

Section 2

The Ingredients of Life

Key Idea

Producers synthesize Energy Storage Molecules (like glucose) through chemical reactions that require specific raw materials. The essential inputs are carbon dioxide from the air and water from the environment.

These reactants are non-negotiable. Without a sufficient supply of both carbon dioxide and water, the chemical reaction cannot proceed, regardless of the amount of sunlight available.