Question

4 Identify the carred alternative based on the information given in the table [ ] Gode 1 Guloop 2 chlorophyll is Chlorophyll is present absent con synthesize Depends upon their own food others Adds oxygen to Grows on decaying atmosphere mattest ) Goop is Autotrophs, Coop 2 95 Parasite B) Group 1 is partasites, Group 2 is Autotrophs Group 1 9 tletesotrophs, Group 2 is Autotrophs Doroup is Autotoophs, Group 2 is soporophytes​

Answer 1

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 a