Exercise, 8th Sci., 10. Cell and Cell Organelles

🔅~~●●○○ 🫐○○●●~~ 🔅 

┅━━━•❀•━━━┅

या धड्यातील जास्तीत जास्त भाग आयुष्यभर लक्षात ठेवावा असा आहे. त्यामुळे या पाठाचे वाचन, लेखन, मनन आणि चिंतन व्यवस्थित करावे.

आपल्या विज्ञान विषयाच्या माहितीसाठी खालील 👇 लिंकला 🖇️ स्पर्श करा.

            

                  माहिती विज्ञानाची 🎷

┈┅━❀꧁꧂❀━•┈

1. ... can get converted into other types of chromoplasts.

2. Write the functions of the Golgi complex.

3. The part of cytoplasm other than organelles is the ... .

4. Define homeostasis.

5. Which polymers are added in the cell wall as needed?

6. Endoplasmic reticulum is connected to the ... from the inside to the plasma membrane from the outside.

7. Write the functions of chloroplast.

8. Write the difference between a eukaryotic cell and a prokaryotic cell.

9. Draw neat and labeled diagram of mitochondria.

10. Write the functions of lysosomes.

11. Define diffusion.

12. ... is an elastic and strong coat around the cell membrane.

13. Define isotonic solution.

14. Number of chromosomes in a eukaryotic cell—more than ... .

15. The organelle that conducts various substances inside the cell is called ... .

16. Write the pigment name.

Colour of the plant part      Pigment

Green (e.g., leaves)    ----- 

Orange (ex. Carrot)   ----

Yellow                      ----

Purple, blue             ----

Dark pink (e.g., beet)  ----

17. Mitochondria and plastids can produce proteins as well as replicate themselves, as they have their own ... and ribosomes.

18. Each cell requires energy, and this energy is produced in the ... .

19. Due to loss of nucleus, a large quantity of hemoglobin can be accommodated in the RBC, and thereby a large amount of ... can be transported.

20. Lysosomes destroy worn-out cellular organelles and organic debris by the autolysis process. Therefore they are called as ... squads

21. Which vital substances does cytosol store?

22. What is meant by endocytosis?

23. How many types of cells are found in living organisms?

24. Write down the functions of the cell wall.

25. Due to various metabolic activities in the cell, organic waste is generated. ... digest the waste.

26. Write the functions of the endoplasmic reticulum.

27. Raw green tomatoes turn red due to the breakdown of chlorophyll and synthesis of .... .

28. Write the functions of vacuoles.

29. During starvation, ... digest stored proteins and fats.

30. In animal cells, cytoplasm is more ... and dense.

31. What is meant by exocytosis?

32. Define hypotonic solution.

33. Which instrument had you used to observe cells?

34. ... are simple, single membrane-bound sacs filled with digestive enzymes.

35. Chromatin fibers are thin, thread-like structures, which condense to form short, thick ... at the time of cell division.

36. Plant cells have fewer mitochondria than animal cells. Write "true" or "false."

37. The cell wall is mainly composed of carbohydrates like cellulose and ... .

38. Define osmosis.

39. Write down any four names of cell organelles.

40. Write the functions of mitochondria.

41. Chlorophyll in chloroplasts traps solar energy and converts it to ... energy.

42. Wooden doors fit very tightly in the rainy season. Why does it happen?

43. Define hypertonic solution.

44. Write the functions of the nucleus.

45. ... are the storage sacs for solid or liquid contents.

46. Write the difference between a plant cell and an animal cell.

47. Functional segments on chromosomes are called ... .

48. Who gives me the colour? (Select the correct option.

 a. Red tomato    1. Chlorophyll

b. Green leaf    2. Carotene

c. Carrot    3. Anthocyanin

d. Violet     4. Lycopene

49. What would have happened? If.......

a. RBCs had mitochondria.

b. There had been no difference between mitochondria and plastids.

c. Genes had been absent on the chromosomes.

d. Plasma membrane had not been selectively permeable.

e. Plants lacked anthocyanin.

50. Who am I?

a. I am an ATP-producing factory.

b. I am single-layered but maintain cellular osmotic pressure.

c. I support the cell, but I am not the cell wall.

I have a body resembling a net.

d. I am the chemical factory of the cell.

e. Leaves are green because of me.

51. ... destroy viruses and bacteria that attack the cell.

*━═━═━═══━═━═━*

काही शब्दांना गुगल लिंक 🖇️ आहे. 

🔅~~●●○○ 🫐○○●●~~ 🔅

लाल शब्द हे पुस्तकातील चुका दर्शवतात.

┈┉┅━ ❍❀🔘❀❍ ━┅┉┈

┅━━━━━•❀•━━━━━┅