Answered: Why do photosynthesis occur in only…

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Biology

Why do photosynthesis occur in only chloroplasts?

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter5: Photosynthesis

Section: Chapter Questions

Problem 12CTQ: What is the overall purpose of the light reactions in photosynthesis?

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Concept explainers

Photosynthesis

Plants have a capacity that we humans can only imagine— the ability to produce food from sunlight. Sure, we can prepare some dishes that we can savor on, but it become possible because of the plants (as they serve as a producers of all the raw materials required). Photosynthesis is the method of assembling carbohydrates with the aid of sunlight.

Question

Why do photosynthesis occur in only chloroplasts?

Expert Solution

Step 1

Photosynthesis is a process used by plants and some prokaryotes to convert light energy into chemical energy.
Photosynthesis is the ultimate process that is responsible for synthesizing food for all the living organisms present on earth. All the living organisms are dependent on photosynthetic plants for their energy directly or indirectly.
The photosynthetic reaction is a redox process involving the splitting of water using the energy of light (oxidation reaction) that produces a proton (H+), oxygen gas (O2), and electrons. This results in the release of free oxygen that is crucial for sustaining life on earth.
The electron is transferred to carbon dioxide (CO2) that is reduced into organic products.
Other electrons and protons are utilized in reducing nitrates and sulfates that serves as the precursor of amino acids that form proteins.
The carbohydrates and sugars are the major organic products of photosynthesis.
The overall photosynthetic reaction is:

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