A comparison between the process of cellular respiration and photosynthesis

Photosynthesis Meaning Cellular respiration is the process of converting energy and providing it to the different cells of the body. Here the glucose and oxygen are converted to carbon dioxide and water, and thus energy ATP is released. The process of using the sunlight and water to convert it into energy is called as photosynthesis, which is specially performed by the green plants and few bacteria.

A comparison between the process of cellular respiration and photosynthesis

What is the difference between Photosynthesis and Cellular Respiration What is Photosynthesis Photosynthesis is the production of glucose from carbon dioxide and water by obtaining energy from sunlight. Oxygen gas is a by-product of photosynthesis.

Difference Between Photosynthesis and Cellular Respiration - timberdesignmag.com

Pigments like chlorophyll, carotenoids and phycobilins are used to trap the light energy. Therefore, during photosynthesis, light energy is converted into potential chemical energy. Subsequently, glucose provides the metabolic energy to all cellular processes in the cell.

Types of Photosynthesis Oxygenic photosynthesis and anoxygenic photosynthesis are the two types of photosynthesis found on earth.

Plants, algae, and cyanobacteria carry out oxygenic photosynthesis while purple sulfur bacteria and green sulfur bacteria carry out anoxygenic photosynthesis.

The electron donor in oxygenic photosynthesis is water whereas the electron donor in anoxygenic photosynthesis is a variant like hydrogen sulfide rather than water.

Thereby, in anoxygenic photosynthesis, oxygen gas is not liberated as a by-product. The chemical reactions of both oxygenic and anoxygenic photosynthesis are shown below.

Photosynthesis in a plant In plants, photosynthesis occurs in specialized plastids called chloroplasts that are found in the cytoplasm of photosynthetic cells. Photosynthesis occurs in thylakoid membrane and stroma regions of chloroplasts.

The first stage of photosynthesis is the light reaction. In thylakoid membrane of grana, photocenters are found, organizing the photosynthetic pigments in them. The light is absorbed by photosystem I and II, which are the two protein complexes found in thylakoid membrane, and the absorbed light is transferred to photocenters.

The generating high energy electrons are transferred into the third protein complex, cytochrome bf complex. The second stage of photosynthesis is the dark reaction, where the NADPH and ATP produced in light reaction are used as the energy sources to synthesize glucose.

Dark reaction occurs in the stroma. Dark reaction is also called the Calvin cycle. The 18 ATPs are used by the Calvin cycle itself. The 12 NADPH contain 24 electrons that are transported into the electron transport chain, which is the third stage of photosynthesis.

ATP synthase enzyme on the thylakoid membrane transfers the 24 electrons into 12 water molecules, producing 6 oxygen molecules.

A comparison between the process of cellular respiration and photosynthesis

This process of electron transportation is called photophosphorylation. The process of photosynthesis is shown in figure 2. Photosynthesis Mechanism What is Cellular Respiration Cellular respiration is the process which converts the biochemical energy into energy in ATP, eliminating carbon dioxide and water as waste products.

Key Differences Between Cellular Respiration and Photosynthesis

It occurs in all the organisms living on earth.The Photosynthesis Reaction. Many of us appreciate the warmth of the sun when we're on the beach or anxiously waiting for the arrival of spring. May 02,  · compare photosynthesis to cellular respiration. Be sure to examine the following criteria in your comparison: A) organisms that perform the process B) special parts of the organism used to perform the process C) types of cells that perform the process D) starting materials E) final products F) use of final products by other organisms G) energy required H) energy released I) energy Status: Resolved.

Fluid transport 2. TRANSLOCATION OF ORGANIC SOLUTES. Young and growing structures of the plant body like shoot apex, root apex, leaf primordial, floral buds, axially buds, etc.

require vitamin, hormones and adequate energy source for their active metabolism and sustained growth. Aging: Aging, progressive physiological changes in an organism that lead to senescence, or a decline of biological functions and of the organism’s ability to adapt to metabolic stress.

Aging takes place in a cell, an organ, or the total organism with the passage of time.


It is a process that goes on over. Radiant energy is needed for the metabolism of the environment and its inhabitants. Photosynthetically active radiation is the spectrum of visible light.

Photosynthesis vs. Cellular respiration Photosynthesis and cellular respiration are complementary processes by which living things obtain needed substances. They both consume and create the same substances (water, glucose, oxygen, and carbon dioxide) but in different ways.

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