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By Savita S. More

Lakhmir Singh Science Chapter 1 Nutrition in plants Class 7

Last updated on October 4th, 2022 at 12:24 am

 

 

[1] Name the ………………………. gases.

Through Stomata Leaves Exchange Gases.

 

[2] Name the process ………………………food.

Plants Make Food by The Process Called Photosynthesis.

 

[3] What is photosynthesis?

The Process by Which Plants Make Food with The Help of Carbon Di-Oxide, Sunlight and Water Is Called Photosynthesis.

 

[4] True or False

Carbon Dioxide ………………Photosynthesis. [False]

Reason – During Photosynthesis Oxygen Is Released.

Solar Energy ……………………….Photosynthesis. [True]

The Product of………………..Not A Protein. [True]

Reason: – The Product of Photosynthesis Is Glucose Which Is a Carbohydrate.

A Plant Having Red Leaves…………………… Photosynthesis. [True]

Reason- Chlorophyll Is Required for Photosynthesis Which Is Only Found in Green Plants.

Plants Which Synthesize Their Food Themselves Are Called Saprotrophs. [False]

Reason- Plants Which Synthesize Their Own Food Are Called Autotrophs While Saprotrophs Are Plants Which Feed On Dead and Decaying Matter.

 

[5] Name Any One Plant Which ……………………… Its Roots.

Peas, Beans, and Peanuts Has Rhizobium Bacteria in Its Roots.

 

[6] What Do the Patches of …………………………………………………………. Ponds and Lakes Consist of?

The Green Layer Floating On the Surface of Stagnant Water Bodies Are Called Algae.

[7] Why Are Algae Green?

Because of Chlorophyll Algae Are Green.

[8]

[A] Gas Used in Photosynthesis Is Carbon Di-Oxide

[B] Gas Produced in Photosynthesis Is Oxygen.

 

[9]

[A] Autotrophs Can Make Their Own Food.

[B] Heterotrophs Depend On Other Organisms for Food.

 

[10] Rhizobium Bacteria …………………………… Known as?

Symbiotic Relationship.

 

[11] What Name Is Given …………………………………………………… In Lichens?

Symbiotic Relationship

 

12) Where Does …………………. Take Place.

In Leaves, Leaves Is Known as The Kitchen of Plant.

 

13) Why Are The ………………… Green?

The Leaves of Plant Green Due to Chlorophyll Pigment.

 

14) Name The Green……………………. Leaves of Plant.

Chlorophyll.

 

15)  Name Three …………………. Manures.

Nitrogen, Phosphorus, and Potassium.

 

16)  Name The Bacteria……………………………. Compounds.

Rhizobium Bacteria.

 

17) What Type……………………………………. Nodules.

Symbiotic Plant.

 

18)  Name Any Two…………………………………… Plants.

Pea Plant, Beans Are Two Leguminous Plants.

 

19) Name Autotrophic ………………. Plant.

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