Heterotrophic Nutrition MCQs

Nutrition is a discipline of biology concerned with the study of food intake and access, as well as other mechanisms by which living creatures meet their energy and mineral needs. Nutrition is concerned with all aspects of a live organism’s energy requirements. Nutrition is divided into two categories: autotrophic and heterotrophic nutrition. In the autotrophic mode of nutrition, organisms use simple inorganic components like water and carbon dioxide to make their own food in the presence of sunshine and chlorophyll.

Heterotrophic nutrition is defined as a style of nutrition in which certain species depend on the survival of other organisms.

A heterotroph is an organism that is unable to make its own food and must rely on other sources, primarily plant and animal matter, to survive. Because animals and non-photosynthetic plants are unable to prepare their own food, they are classified as heterotrophs. These organisms use a variety of strategies to feed themselves. 

Heterotrophs, as a result, are always secondary or tertiary consumers in a food chain. Organic, solid, or liquid food is converted into energy by humans and vertebrates. Fungi, for example, rely on the transformation of dead organic matter into nutrition. Heterotrophs, in essence, break down complex foods into their functional components.

Question

Q.1. In which Absorptive Heterotrophic nutrition is Exhibited

1. 1. Algae

   2. Fungi

   3. Pteridophytes

   4. Bryophytes

Answer: Fungi are the organism or Species which uses Absorptive Heterotrophic nutrition mode. Hence option ‘B’ is the Correct option.

Q.2. The mode of nutrition in which one organism obtains nutrition from other organism is known as

1. 1. Symbiosis

   2. Autotrophic nutrition

   3. Heterotrophic nutrition

   4. Saprophytic nutrition

Answer: The mode of nutrition in which one organism obtains nutrition from another organism is termed as Saprophytic Nutrition. Hence Option ‘D’ is the Correct Answer.

Q.3. Generally Heterotrophic nutrition is

1. 1. Oxidation of glucose

   2. Breakdown of glucose into energy

   3. Utilization of energy obtained by plants

   4. All the above

Answer: All of the Above is the Correct Answer.

Q.4.The Fungus which Destroys Wheat Plant is

1. 1. lice

   2. Leech

   3. Cuscuta

   4. Puccinia

Answer: Puccinia is a Fungus which is responsible for Wheat plant destruction. Hence Option ‘D’ is the Correct Answer.

Q.5. Assertion: The Mode of Nutrition in higher animals is Heterotrophic.

Reason: For heterotrophic nutrition, animals can use a variety of trophic levels.

1. 1. If the assertion is true but the reason is false

   2. If both assertion and reason are true and the reason is the correct explanation of the assertion

   3. If both assertion and reason are false

   4. If both assertion and reason are true but the reason is not the correct explanation of the assertion

Answer: Option ‘D’ is the Correct Answer.

Q.6. In Vascular Plants the mutualistic association between certain fungi and roots is known as 

1. 1. Haustoria

   2. Mycelium

   3. Rhizoids

   4. Mycorrhizae

Answer: The mutualistic association between certain fungi and roots is termed as Mycorrhizae. Hence Option ‘D’ is the Correct Answer.

Q.7. Name the mode of nutrition in Bacteria?

1. 1. Heterotrophic

   2. Autotrophic

   3. Autotrophic and heterotrophic

   4. None of the above

Answer: In General Autotrophic and heterotrophic both are the mode by which bacteria takes nutrition. Hence Option ‘C’ is the Correct Answer.

Q.8. In amoeba the Digestion of food occurs in

1. 1. Cytoplasm

   2. Nucleus

   3. Food vacuole

   4. None of the above

Answer: Food Vacuole is Correct Answer.

Q.9. What type of nutrition is found in fungi?

1. 1. Saprotrophic or Parasitic

   2. Only Parasitic

   3. Only Saprotrophic

   4. None of these

Answer: Saprotrophic or Parasitic mode of nutrition is found in fungi.

Q.10. Generally A stable Ecosystem is developed with the interaction of

1. 1. Prey

   2. Predators

   3. Animals-humans

   4. Predator-prey

Answer: Predator- Prey is the correct option as interaction of these two maintains a stable Ecosystem.

Q.11. With the help of Carbon dioxide, water and sunlight which organism is able to make their food?

1. 1. Heterotrophs

   2. Autotrophs

   3. Producers

   4. Both 1 and 2

Answer: Both Autotrophs and Heterotrophs are able to make their food in the presence of Carbon-Dioxide and water. Hence option ‘D’ is Correct Option.

Q.12. Those organism who depend on other animals for food and can’t able to make their own food is known as

1. 1. Producers

   2. Consumers

   3. Autotrophs

   4. None of these

Answer: The organism which cannot make their food own and depend on others is known as Consumers. Hence Option ‘B’ is Correct.

Q.13. In the Organism, heterotrophic mode of nutrition could be

1. 1. Parasitic

   2. Saprophytic

   3. Symbiotic

   4. All of them

Answer: Generally Parasitic, Saprophytic and Symbiotic all are the heterotrophic mode of nutrition in organisms. Hence option ‘D’ is the correct answer.

Q.14.The Plants that feeds on organic compound or on Small Insects are known as

1. 1. Parasites

   2. Carnivorous

   3. Insectivorous

   4. Herbivorous

Answer: Generally the Plants that feed on organic compounds or on Small Insects are termed as Insectivorous. Hence Option ‘C’ is Correct Option.

Q.15.In which Group Lichens are contained

1. 1. Thallophyta

   2. Autotrophic

   3. Saprophytic

   4. Symbiotic

Answer: In General Lichens are the Examples of Symbiotic Groups. Hence ‘D’ option is Correct.

Q.16. The Ectoparasite which attacks both aquatic and terrestrial animals is

1. 1. Flea

   2. Lice

   3. Aphid

   4. Leech

Answer: Leech attacks both aquatic and terrestrial animals. Hence option ‘D’ is the correct answer.

Q.17. Snail feed through rasping organ is known as

1. 1. Radula

   2. Scrape

   3. Siphon

   4. Anus

Answer: Radula is the organ through which snails feed. Hence option ‘A’ is the correct answer.

Q.18. Decomposition is an important function of

1. 1. Algae

   2. Protozoans

   3. Plants

   4. Fungi

Answer:  Fungi is the Correct option. Hence option ‘D’ is the correct option.