Difference between Autotrophic nutrition and heterotrophic nutrition?

Autotrophic nutrition

 

Heterotrophic nutrition

(i)

Food is synthesised from simple inorganic raw materials such as CO 2 and water.

(i)

Food is obtained directly or indirectly from autotrophs. This food is broken down with the help of enzymes.

(ii)

Presence of green pigment (chlorophyll) is necessary.

(ii)

No pigment is required in this type of nutrition.

(iii)

Food is generally prepared during day time.

(iii)

Food can be prepared at all times.

(iv)

All green plants and some bacteria have this type of nutrition.

(iv)

All animals and fungi have this type of nutrition.

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Heterotrophic means obtaining ready made organic food from the environment and Autotrophic means manufacturing food from inorganic compounds usualy carbon dioxide, water using a source of energy

Autotrophic nutrition is a process where plants make food by combining large complex organic molecules such as starch, lipids and protien with simple inorganic molecules like water, carbon dioxide and minerals.

Example: plants

Hetrotrophic nutrition is where organism feed on organic substances that have been made by other organisms.

Examples are animals and fungi

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Autotrophic Nutrition:

1. Autotrophs prepare organic food by photosynthesis.

2. It is mainly of two types – photoautotrophic and chemo autotrophic nutrition.

3. They depend on solar energy directly.

4. In this process CO2 is taken and O2 is released. E.g. Green plant and animal like Euglena.

Heterotrophic Nutrition:

1. Heterotroph depends on autotrphs for food.

2. It may be holozoic, saprozoic, osmotrophic, parasitic, etc.

3. They depend on solar energy indirectly.

4. In this process food is taken into body and undigested food is released outside of the body, e.g. Bacteria and all animals.


 

 

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Autotrophs:

1. The plants which are nourished themselves with the food prepared by themselves are called autotrophs.

2. They contain chloroplast in their cells.

3. They include all green plants which are capable of performing photosynthesis.

 

Heterotrophs:

1. The Plants, which are incapable of synthesizing their own food and depend on other plants for their nourishment  are called heterotrophs.

2. They do not contain chloroplasts in their cells.

3. They include fungi and other non-green plants which may be parasites and saprophytes. They draw their nourishment form living hosts or from dead and decaying organisms.

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Autotrophic and Hetrotrophic are the modes of nutrition.

Autotrophic Nutrition:-The mode of nutrition in which organisms make their own food using sunlight, water, and carbon dioxide is known as autotrophic mode of nutrition.For eg-Plants

Hetrotrophic Nutrition:- The mode of nutrition in which the organism cannot make their own food,they are dependent on plants and other animals for nutrition, it is known as hetrotrophic mode of nutrition. For eg animals.

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Autotrophic Nutrition
 
Heterotrophic Nutrition 
1. Autotrophs prepare organic food by photosynthesis.1. Heterotroph depends on autotrphs for food.
2. It is mainly of two types – photoautotrophic and chemo autotrophic nutrition.2. It may be holozoic, saprozoic, osmotrophic, parasitic, etc.
3. They depend on solar energy directly.3. They depend on solar energy indirectly.
4. In this process CO is taken and Ois released. E.g. Green plant and animal like Euglena.4. In this process food is taken into body and undigested food is released outside of the body, e.g. Bacteria and all animals.
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Autotrophic nutrition

 

Heterotrophic nutrition

(i)

Food is synthesised from simple inorganic raw materials such as CO and water.

(i)

Food is obtained directly or indirectly from autotrophs. This food is broken down with the help of enzymes.

(ii)

Presence of green pigment (chlorophyll) is necessary.

(ii)

No pigment is required in this type of nutrition.

(iii)

Food is generally prepared during day time.

(iii)

Food can be prepared at all times.

(iv)

All green plants and some bacteria have this type of nutrition.

(iv)

All animals and fungi have this type of nutrition.

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