Key distinction – Phototrophs vs Chemotrophs  

Organisms space categorized based upon the nutritional requirements. Some organisms space able to produce their very own food while part organisms rely on the various other food assets produced by other organisms. Some organisms show various relationships to achieve foods. Therefore, assorted kinds of organism categories are available, and amongst them, phototrophs and also chemotrophs room two main categories. Phototrophs space the organisms that usage sunlight together their energy resource to carry out your cellular functions. There space two varieties of phototrophs; photoautotrophs and photoheterotrophs. Chemotrophs space the biology that depend on energy produced by the oxidation of not natural or essential molecules. Chemotrophs room two main varieties namely chemoautotrophs and chemoheterotrophs. The key difference between the phototrophs and heterotrophs is the energy source that they use. Phototrophs rely on sunshine to obtain energy when chemotrophs do not depend on sunlight to obtain energy rather rely on chemicals for energy production.

You are watching: A phototroph is to a chemotroph as


1. Overview and an essential Difference2. What space Phototrophs3. What space Chemotrophs4. Similarities in between Phototrophs and Chemotrophs5. Side by next Comparison – Phototrophs vs Chemotrophs in Tabular Form6. Summary

What space Phototrophs?

Phototrophs space the group of organisms that utilize power from sunlight to create ATP to bring out to move functions. In various other words, phototrophs room the biology that depend on sunshine to develop their own foods or oxidation organic molecule to develop energy for cellular functions. The prefix “Photo” refers to the light, and also the word “trophs” describes the means of obtaining food or the nourishment. Hence, phototrophs room the organisms the fulfil their nutritional need using the sunlight.

There space two varieties of phototrophs specific photoautotrophs and photoheterotrophs. Photoautotrophs can be identified as the organisms the make their own foods by the use of sunlight and inorganic carbon resource that is carbon dioxide. The procedure they carry out is photosynthesis. Castle possess distinct organelle and also pigments to capture energy native sunlight and also utilize the to produce organic molecules from carbon dioxide and also water. Examples of the photoautotrophic organisms are eco-friendly plants, algae, photosynthetic bacteria, cyanobacteria, etc. All many all green plants space photosynthetic. They serve as vital food resource for the terrestrial ecosystems. Photoautotrophs space extremely important for the healthy functioning of most of the ecosystems and also the survive of the heterotrophs. Heterotrophs rely on the foods produced by autotrophs. And additionally phototrophs room important because they space able to eliminate carbon dioxide indigenous the atmosphere and release oxygen come the setting of the pet respiration.

Figure 01: Phototroph – environment-friendly Plants

Photoheterotrophs space organisms that make power from sunlight and use organic materials as their carbon sources. They space not photosynthetic, and they are not able to usage carbon dioxide. Instead, they usage organic carbon assets produced by various other organisms. Photoheterotrophs create ATP via the process called photophosphorylation.

What are Chemotrophs?

Chemotrophs are organisms that attain energy from chemical oxidation or the chemosynthesis. They cannot usage sunlight together their power source. Instead, castle use not natural or organic compounds and also obtain the power through oxidation. The prefix “chemo” describes the chemical and also the indigenous “troph” describes the nourishment. Hence, this organisms are totally dependent top top the chemicals for the power source.

Chemotrophs deserve to be two teams namely chemoautotrophs or chemoheterotrophs. Chemoautotrophs space able to create their own foodstuffs through chemosynthesis. Lock use inorganic compounds such together H2S, S, NH4+, Fe2+ together reducing agents and synthesize carbohydrate from carbon dioxide. This organisms are discovered in extreme atmospheres such together deep sea, etc. Wherein sunlight can not be reached. Examples of chemoautotrophs incorporate methanogens, halophiles, nitrifiers, thermoacidophiles, sulfur oxidizers, etc.

Figure 02: A Black Smoker in the Atlantic Ocean providing energy and also nutrients because that Chemotrophs

Chemoheterotrophs are the organisms that rely on necessary compounds because that the energy and also carbon source. This organisms ingest foods items such together carbohydrates, lipids, proteins developed by other organisms. Chemoheterotrophs are the most abundant kind of the organisms consisting of most that the bacteria.

What are the Similarities between Phototrophs and Chemotrophs?

Both phototrophs and also chemotrophs are groups of organisms based upon the kind of nutrition.Both phototrophs and also chemotrophs groups incorporate autotrophs and also heterotrophs.Both phototrophs and chemotrophs groups can be uncovered in very same ecosystems.

What is the Difference between Phototrophs and Chemotrophs?

Phototrophs vs Chemotrophs

Phototrophs are the organisms that attain energy from sunlight to carry out cellular functions.Chemotrophs are the biology that achieve energy from the oxidation of chemical compounds.
Phototrophs deserve to be either photoautotrophs or photoheterotrophs.Chemotrophs have the right to be one of two people chemoautotrophs or chemoheterotrophs.
Energy production Process
Most that the phototrophs carry out photosynthesis.Chemotrophs perform chemosynthesis.
 Use the Sunlight
Phototrophs can use sunlight.Chemotrophs cannot use sunlight.
Phototrophs room unable to perform chemosynthesis.Chemotrophs are able to do chemosynthesis.
Phototrophs are eco-friendly plants, algae, cyanobacteria, violet non-sulfur bacteria, green non-sulfur bacteria, etc.Chemotrophs room methanogens, halophiles, nitrifiers, thermoacidophiles, sulfur oxidizers, animals, etc.

See more: How Much Water Is 6 Oz - Ounces (Oz) To Cups Conversion

Summary – Phototrophs vs Chemotrophs 

Phototrophs and chemotrophs room two main groups of biology that room categorized based upon the form of nutrition. Phototrophs make power for your cellular processes using sunlight (solar energy). Chemotrophs room unable to usage solar energy. Thus they rely on the energy created by the chemosynthesis. Chemicals are oxidized by chemotrophs to develop energy for your cellular functions. Both groups encompass organisms the make their very own foods and organisms rely on foods created by various other organisms. Chemotrophs space the many abundant type of organisms. Phototrophs are essential for the to work of numerous ecosystems. Photoautotrophs absorb carbon dioxide from the atmosphere and release oxygen come the atmosphere. The survival of other heterotrophic biology is dependence on the photoautotrophs. This is the difference in between phototrophs and chemotrophs.


1.Editors. “Photoautotroph – Definition, duty and Types.” Biology Dictionary, 29 Apr. 2017. Accessible here 2.“Chemotroph.” Wikipedia, Wikimedia Foundation, 17 Feb. 2018. Easily accessible here 3.Boundless. “Boundless Microbiology.” Lumen. Available here

Image Courtesy:

1.’60560′ (Public Domain) via pexels2.’Blacksmoker in Atlantic Ocean’By P. Rona (Public Domain) via Commons Wikimedia 

Difference in between Autotrophs and Heterptrophs
Difference between Photosynthesis and Cellular Respiration
Difference in between Photosynthesis and Chemosynthesis

Difference in between Coronavirus and Cold Symptoms


Difference between Coronavirus and SARS


Difference between Coronavirus and also Influenza


Difference in between Coronavirus and Covid 19

You may Like

Difference in between Tomcat 7.0.19 and also Tomcat 7.0.18


Difference in between Meditation and Sleep


Difference between Transpose and also Inverse Matrix


Difference between Heat capacity and details Heat


Difference Between accounting Depreciation and also Tax Depreciation