NCERT Science Notes for Class 7 (Part 6) 1.4

 Hello friends in this article you are going to read about Saprotrophs.

 

In the previous part you read about-

1. Parasitic nutrition

2. Insectivorous plants

Link for the previous part-

https://allinoneguidematerial.blogspot.com/2020/10/ncert-science-notes-for-class-7-part-5.html

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In this article you are going to read about-

1. Fungi

2. Symbiosis

3. Lichens

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1. Have you heard or have seen fungi growing on food? The fungi absorb the nutrients from the food.

 

2. Saprotrophic nutrition is the mode of nutrition in which organisms absorb the nutrients from dead or decaying matter like rotten bread.

3. Such organisms which use Saprotrophic nutrition are called Saprotrophs. The fungal spores are present in the air and when they land on wet and warm place they germinate very rapidly.

 

4. Some organisms live together and share the shelter and nutrients. This relationship is called symbiosis.

E.g. certain fungus lives in the roots of the plant. The plant provides nutrients to fungus and in return fungus provide the plant with water and some nutrients.

 

5. In lichens there is an organism called alga, which contains chlorophyll and can perform photosynthesis lives with fungus which provides alga shelter, water and nutrients; and in return alga provides the fungus with food.

 

Thanks for reading share this blog for more such informative articles.

Next articles-

1. NCERT Science Notes for Class 7- Chapter 1- part 6 (1.5- How Nutrients are Replenished in the Soil)

Date- 18/Oct./2020 

 

2. What came first into existence plants or animals? ‘Animal World Part 3’

Date- 20/Oct./2020

 

3. Full notes for Science Class 7 Chapter 1.

Date- 20/Oct./2020