Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Why do photosynthesis occur in only chloroplasts?
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- 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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