Photosynthesis

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy, water, and carbon dioxide into glucose and oxygen. This process is essential for the survival of plants and the majority of life forms on Earth.

Key Concepts

1. Light Absorption: Chlorophyll, the green pigment in plant cells, absorbs light energy from the sun.
2. Water Uptake: Plants absorb water from the soil through their roots and transport it to the leaves.
3. Carbon Dioxide Uptake: Carbon dioxide is taken in from the air through small openings in the leaves called stomata.
4. Glucose Production: The absorbed light energy is used to convert water and carbon dioxide into glucose and oxygen.
5. Oxygen Release: The oxygen produced during photosynthesis is released into the atmosphere as a byproduct.

Study Guide

Here are some key points to help you understand and remember the process of photosynthesis:

1. What is the main purpose of photosynthesis?

The main purpose of photosynthesis is to produce glucose (sugar) and oxygen using light energy, water, and carbon dioxide.

2. What is the role of chlorophyll in photosynthesis?

Chlorophyll absorbs light energy from the sun, which is used to drive the chemical reactions of photosynthesis.

3. Where does the water used in photosynthesis come from?

Plants absorb water from the soil through their roots, and it is transported to the leaves where it is used in the photosynthetic process.

4. How is carbon dioxide obtained for photosynthesis?

Plants take in carbon dioxide from the air through small openings in their leaves called stomata.

5. What are the products of photosynthesis?

The products of photosynthesis are glucose (sugar) and oxygen. Glucose is used as a source of energy for the plant, while oxygen is released into the atmosphere.

Understanding the process of photosynthesis is crucial for comprehending the importance of plants in the environment and their role in sustaining life on Earth.

[Photosynthesis] Related Worksheets and Study Guides:

• PlantsScience • Second Grade