Best answer: How does light provide energy for photosynthesis?

Why is light energy needed in the chloroplast?

Why is light energy needed in the chloroplast? To turn electrons from water and energize them. If the glucose made by the plant was only used to make starch and not cellulose what impact would this have on the plant’s growth (size and structure)? It would be weaker and smaller.

What is the overall purpose of the light reactions in photosynthesis?

The overall purpose of the light-dependent reactions is to convert light energy into chemical energy. This chemical energy will be used by the Calvin cycle to fuel the assembly of sugar molecules. The light-dependent reactions begin in a grouping of pigment molecules and proteins called a photosystem.

How do chloroplasts get energy from sunlight?

Chloroplasts absorb sunlight and use it in conjunction with water and carbon dioxide gas to produce food for the plant. Chloroplasts capture light energy from the sun to produce the free energy stored in ATP and NADPH through a process called photosynthesis.

What is the role of light in photosynthesis quizlet?

In the presence of light, plants transform carbon dioxide and water into carbohydrates, and they also release oxygen. … What is the role of light and chlorophyll in photosynthesis? Light is a form of energy and chlorophyll absorbs light and the energy from the light.

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