{"id":2225,"date":"2022-10-17T11:14:10","date_gmt":"2022-10-17T05:44:10","guid":{"rendered":"https:\/\/www.tutoroot.com\/blog\/?p=2225"},"modified":"2024-01-17T15:26:42","modified_gmt":"2024-01-17T09:56:42","slug":"difference-between-autotrophs-and-heterotrophs","status":"publish","type":"post","link":"https:\/\/www.tutoroot.com\/blog\/difference-between-autotrophs-and-heterotrophs\/","title":{"rendered":"Difference Between Autotrophs and Heterotrophs"},"content":{"rendered":"

On our planet Earth, all living organisms can be differentiated into two types, Autotrophs, and Heterotrophs, based on the types of nutrition methods employed by the said organisms. So, to understand the nutrition methods of autotrophs and heterotrophs, students need to have a good understanding of, besides differences between autotrophs and heterotrophs, and their main functions.<\/p>\n

What are Autotrophs?<\/strong><\/h2>\n

The organisms that generally prepare their own food, through the process of Photosynthesis, are defined as Autotrophs. All types of plants, trees, and shrubs, are categorized into autotrophs. The process of Photosynthesis is made possible in plants, because of a special pigment cell called Chlorophyll, which is actively used in producing food in the leaves and also generating energy by absorbing sunlight. Moreover, using the Photosynthesis process, the autotrophs absorb carbon dioxide in the atmosphere and release oxygen as a by-product.<\/p>\n

Autotrophs are thus defined as<\/strong><\/h4>\n

Simple organisms process and make their own food through the photosynthesis process. All green plants are autotrophs and they contain chlorophyll pigment in the plant cell that is important in preparing food by absorbing sunlight.<\/p>\n

The interesting aspect about autotrophs is that they also apply a process called chemosynthesis, under which, they absorb energy through chemical reactions for processing food, rather than harnessing light energy from the sun through the traditional photosynthesis process. This is apparent in organisms such as bacteria that live in extreme conditions and make their food, be it cold conditions, volcanoes, deep oceans, etc.<\/p>\n

Examples of Autotrophs<\/strong><\/h4>\n

Plants form the most general examples of autotrophs. These plants generate their food and nutrition through the most renowned process called photosynthesis. Autotroph examples also cover algae and certain other bacteria and cyanobacteria.<\/p>\n

What are Heterotrophs?<\/strong><\/h2>\n

As you can guess, these are organisms that cannot produce their own food like Autotrophs. And so, in turn for food or nutrition, the Heterotrophs directly depend on the Autotrophs. This is why they are categorized as consumers and are placed at secondary and tertiary levels of the food chain. Besides, as you can guess, Heterotrophs are directly dependent on Autotrophs, not just for food, but also oxygen, which is essential for all life forms on the earth.<\/p>\n

Heterotrophs can be classified based on their nutrition source. First is the herbivores that eat only. Secondly, it is the carnivores that depend on other animal\u2019s flesh. In the third case, some omnivores prey on both, getting energy from eating plants as well as animals. Some decomposers feed on the dead and decayed things, in order to get energy.<\/p>\n

\"Difference<\/p>\n

Types of Heterotrophs<\/strong><\/h3>\n

As we understand, heterotrophs are defined as organisms that prey on plants and animals for their living, basically for energy. There are different types of heterotrophs, and this is of course classified based on how they draw or earn their nutrients or energy, primarily food.<\/p>\n

Heterotrophs fall in the second and third levels in any food chain, which is a sequence of organisms that offer energy and nutrients to other living beings. In every food chain, three levels determine the role of the organism in the ecosystem. The first trophic level belongs those autotrophs, such as plants and algae. Herbivores are the organisms that prey on plants and they fall under the second level. Carnivores are the organisms that eat meat and finally, omnivores are the organisms that eat both plants and meat, coming under the third level. Heterotrophs consist of herbivores and the carnivores and omnivores consumers.<\/p>\n

Now, let us look at another kind of heterotrophic organism – detritivore. These organisms get their food by preying on plant and animal remains that will include fecal matter. These detritivores are the most crucial organisms when it comes to ensuring a healthy ecosystem where wastes are reduced by recycling. Some of the detritivore organisms are worms, insects, and fungi.<\/p>\n

Now let us look at two more substrata of heterotrophs: photoheterotrophs and chemoheterotrophs. Photoheterotrophs are those organisms that draw their nutrients from light. However, they have to get carbon from other organisms since they cannot get carbon dioxide from the air. On the contrary, chemoheterotrophs seek energy from energy as well as carbon from other organisms<\/p>\n

Examples of Heterotrophs<\/strong><\/h4>\n

Examples of heterotrophs include all animals including herbivores, carnivores, and omnivores<\/p>\n

Differences Between Autotrophs and Heterotrophs<\/span><\/b><\/h2>\n

There are main differences between Autotrophs, and Heterotrophs, which we are going to explain briefly here in this section.\u00a0<\/span>\u00a0<\/span><\/p>\n\n\n\n\n\n\n\n\n\n
Parameters<\/span><\/b>\u00a0<\/span><\/td>\nAutotrophs<\/span><\/b>\u00a0<\/span><\/td>\nHeterotrophs<\/span><\/b>\u00a0<\/span><\/td>\n<\/tr>\n
Meaning<\/span>\u00a0<\/span><\/td>\nOrganisms that produce their own food.<\/span>\u00a0<\/span><\/td>\nOrganisms that cannot produce their own food, so they depend on Autotrophs.<\/span>\u00a0<\/span><\/td>\n<\/tr>\n
Presence of Chloroplasts<\/span>\u00a0<\/span><\/td>\nChloroplasts play a role in the production of food.<\/span>\u00a0<\/span><\/td>\nNo presence of chloroplast.<\/span>\u00a0<\/span><\/td>\n<\/tr>\n
Energy Absorption<\/span>\u00a0<\/span><\/td>\nEnergy is produced by the conversion of light energy into chemical energy through the Photosynthesis process.<\/span>\u00a0<\/span><\/td>\nEnergy is absorbed directly or indirectly through other organisms.<\/span>\u00a0<\/span><\/p>\n

\u00a0<\/span><\/td>\n<\/tr>\n

Location in Food Chain<\/span>\u00a0<\/span><\/td>\nAutotrophs are located at the primary level in the food chain.<\/span>\u00a0<\/span><\/td>\nHeterotrophs are placed in the secondary and tertiary levels of the food chain.<\/span>\u00a0<\/span><\/td>\n<\/tr>\n
Storage of Energy<\/span>\u00a0<\/span><\/td>\nThese organisms are capable of storing chemical as well as light energy.<\/span>\u00a0<\/span><\/td>\nThese organisms cannot store any form of energy.<\/span>\u00a0<\/span><\/td>\n<\/tr>\n
Examples<\/span>\u00a0<\/span><\/td>\nGreen Plants, Photosynthetic Bacteria, Algae, etc.<\/span>\u00a0<\/span><\/td>\nAll animals, humans, etc.<\/span>\u00a0<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Characteristics of Autotrophs and Heterotrophs<\/span><\/b><\/h2>\n

From the above section, you can understand that both the Autotrophs and Heterotrophs are equally important for the food chains and the ecosystems. Thus, they have many unique characteristics such as, <\/span>\u00a0<\/span><\/p>\n