Class-7 Science – Nutrition in Plants

 

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Write component of food which are called nutrients

#1. 1st nutrient

#2. 2nd nutrients

#3. 3rd nutrients

#4. 4th nutrients

#5. 5th nutrients

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#6. Which living organisms not require food

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#7. …….. are the only organisms that can prepare food for themselves.

#8. The nutrients enable living organisms to …….

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List the raw materials required for preparing food in the plant

#9. 1st raw material

#10. 2nd raw material

#11. 3rd raw material

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#12. Mode of taking food by an organism and its utilisation by the body is called …..

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#13. The mode of nutrition in which organisms make food themselves from simple substances is called ….

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#14. Who are autotrophs

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#15. Who are heterotrophs ?

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#16. Which part of the plant serves as the food factories for plants?

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#17. Water and minerals present in the soil are absorbed by …… parts of the plants

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#18. What is the name of the pores on leaves that take in carbon dioxide from the air?

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#19. Pores of leaves are surrounded by……..

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#20. Water and minerals are transported from the root to the leaves through the……

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#21. The leaves have a green pigment called …….

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#22. ….. helps leaves to capture the energy of the sunlight.

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Why is photosynthesis called photosynthesis? write it in notebook

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#23. ……… is the ultimate source of energy for all living organisms.

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Write the equation for photosynthesis in notebook

carbon dioxide water ——–Sunlight / Chlorophyll…….> carbohydrate oxygen

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#24. Bodie of living organisms are made of tiny units called …..

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#25. Cell is enclosed by a think outer boundary called the …..

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#26. Most cells have a distinct, centrally located spherical structure called the ……

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#27. The nucleus is surrounded by a jelly like substance called ……..

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Besides leaves, photosynthesis also takes place in other parts of the plant

#28. write that parts name

#29. write that parts name

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#30. The leaves other than green color also have chlorophyll

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#31. Some plants with deep red, violet, or brown leaves. Now, tell us, do these leaves also carry out photosynthesis?”

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#32. Slimy, green patches in ponds are formed by the growth of organisms called …..

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#33. …… gives green color to algae.

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#34. Plants synthesise …….. through the process of photosynthesis.

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Carbohydrates are made of

#35. 1st

#36. 2nd

#37. 3rd

#38. From where do the plants obtain nitrogen ?

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#39. Who convert gaseous nitrogen into usable form for tree

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#40. Every plants can synthesise food.

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#41. The plant on which cuscuta climbs is called……..

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#42. Cuscuta is called the ……..

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#43. The insect eating plants are called ……. plants

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#44. The mode of nutrition in which organisms take in nutrients from dead and decaying matter is called …….. nutrition.

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#45. Organisams with saprotrophic mode of nutrition are called ……….

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#46. ……. grow on bread that are left in hot and humid weather for long time.

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#47. Some organisms live together and share both shelter and nutrients. This relationship is called …….

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#48. An alga and an …….. live together are an example of symbiosis.

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Why we need to add fertilisers in soil ? write answer in notebook.

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#49. Plants absorb nitrogen only in ……… form.

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#50. The bacterium called ……. can take atmospheric nitrogen and convert it into a usable form for plants.

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#51. All plants are autotrophs.

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Write essential requirements for photosynthesis.

#52. 1st

#53. 2nd

#54. 3rd

#55. 4th

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#56. chemical substance …… are the products of photosynthesis

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#57. many fungi derive nutrition from dead and decaying matter are called …..

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#58. In photosynthesis solar engergy is absorbed by the pigment called ……..

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#59. A parasitic plant with yellow , slender and branched stem is called …….

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#60. …… plant is partially autotrophic (name of plant)

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