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What is Autotrophic Nutrition and Heterotrophic Nutrition? Video Lecture | Science Class 7

111 videos|246 docs|28 tests

Timeline

00:00 Modes of Nutrition
00:25 Autotrophic Mode of Nutrition
01:14 Heterotrophic Mode of Nutrition
01:33 Question 1
01:47 Parasitic Nutrition
02:30 Saprophytic Nutrition
03:31 Symbiotic Nutrition
04:42 Question 2
04:44 Insectivorous Plants
06:21 Question 3
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FAQs on What is Autotrophic Nutrition and Heterotrophic Nutrition? Video Lecture - Science Class 7

1. What is Autotrophic Nutrition and Heterotrophic Nutrition?
Ans. Autotrophic nutrition is a process of synthesizing organic compounds from simple inorganic molecules present in the environment. In contrast, heterotrophic nutrition is a process of obtaining pre-formed organic compounds from other organisms.
2. What are the differences between Autotrophic and Heterotrophic Nutrition?
Ans. Autotrophic nutrition involves the synthesis of organic compounds from simple inorganic molecules, while heterotrophic nutrition involves obtaining pre-formed organic compounds from external sources. Autotrophs produce their food, while heterotrophs consume food. Autotrophs can survive without consuming other organisms, while heterotrophs cannot.
3. What are some examples of Autotrophs and Heterotrophs?
Ans. Examples of autotrophs include green plants, algae, and some bacteria. Examples of heterotrophs include animals, fungi, and some bacteria.
4. Can organisms exhibit both Autotrophic and Heterotrophic Nutrition?
Ans. Yes, some organisms exhibit both autotrophic and heterotrophic nutrition. These organisms are called mixotrophs. Mixotrophs can produce their food through photosynthesis, but they can also consume other organisms when necessary.
5. How does Autotrophic Nutrition contribute to the ecosystem?
Ans. Autotrophic nutrition is vital to the ecosystem as it is the primary source of organic compounds for all other organisms. Autotrophs convert inorganic molecules into organic compounds, and these compounds are used by heterotrophs to carry out their life processes. In addition, autotrophs also produce oxygen, which is essential for the survival of many organisms.
111 videos|246 docs|28 tests

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