Question

write the difference between autotrophic heterstrepic nutrition? in points
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Answer 1

Answer:

Autotrophs Heterotrophs

Type of Organisms

Usually members of the plant kingdom and certain unicellular organisms like cyanobacteria All members of the animal kingdom

Mode of Nutrition

Autotrophs are producers which prepare their own food. Heterotrophs are the consumers who depend on other sources for their food.

Classified into

These can be classified as photoautotrophs and chemoautotrophs. These can be classified as photoheterotrophs and chemoheterotrophs.

Presence of chloroplasts

The chloroplast helps in preparing food. They do not contain chloroplast, so cannot prepare food.

Energy is obtained from

They obtain energy from inorganic sources by converting light energy into chemical energy. They obtain energy directly or indirectly from other organisms.

Energy Storage

Autotrophs can store light energy and chemical energy. Heterotrophs cannot store energy.

In Food Chain

They are placed at the primary level in the food chain. These are placed in the secondary or tertiary level in the food chain.

Locomotion

They cannot move from their place. Can move from one place to another in search of food and shelter.

Examples

Green plants, algae and a few photosynthetic bacteria are examples of autotrophs. Cows, buffaloes, tigers, horses, humans are examples of heterotrophs

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Answer 2

Answer:

Hint: Food is the source of energy that one uses for physical activities, physiological and metabolic functions. Living organisms obtain their food through different modes.

Part 1 - Definition

Nutrition involves the method by which the food is consumed and utilized for the nutrients by the organisms from the food.

Part 2 - Modes of nutrition  

Living organisms are further divided based on the modes of nutrition:

   Autotrophs

   Heterotrophs

Part 3 - Basis of classification

Autotrophs can prepare their own food because of the presence of chlorophyll within their cells.

Heterotrophs can not prepare their own food due to the absence of chlorophyll, hence indirectly depends upon autotrophs for their nutrition.

Part 4 - Examples of organisms

Autotrophs: Blue-green algae, multicellular algae, and plants.

Heterotrophs: Cows, buffaloes, tigers, horses, and humans.

Part 5 - Tabular representation

  Autotrophic nutrition Heterotrophic nutrition  

Definition

When an organism prepared their own food and does not depend on any other organism. When an organism depends on the plant or another animal for food.

Mode of nutrition An organism that follows the autotrophic mode of nutrition is called as autotroph.

Organisms are also known as producers.

An organism that carries out heterotrophic nutrition is heterotroph.

Organisms are also known as consumers.

Classification Autotrophic mode of nutrition is further divided into two categories:

(i) Photoautotrophs (uses photosynthesis as a source of energy)  

(ii) Chemoautotrophs (uses chemosynthesis) Heterotrophic mode of nutrition is further divided into three groups such as:

(i) Holozoic nutrition

(ii) Saprophytic nutrition

(iii) Parasitic nutrition

Presence of chlorophyll Organisms have chlorophyll pigment.

Organisms do not have chlorophyll.

Examples of organisms

plants, blue-green algae and non- green sulphur bacteria

bacteria, fungi and animals

Explanation:

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