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Class 8 Science Chapter 8 Cell Structure And Functions Quiz 14 (60 MCQs)

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1. Is a thin, semipermeable membrane that serves as the outer covering of the cell.
2. Which of the following is a unicellular organism?
3. Largest cell visible to uniaded eye is:
4. An organelle in the plant that makes food/glucose in a process called photosynthesis.
5. Who is credited with coining the term "cell" after observing cork under a microscope?
6. What is the primary function of the cell membrane?
7. Control center; contains DNA; appeared purple under the microscope
8. Creates proteins. It can float within the cytoplasm or be attached to an organelle.
9. All cells have a cell membrane
10. In which organelle does photosynthesis occur?
11. A human white blood cell engulfs a bacterial cell by:
12. Priya is studying cell biology and comes across the Golgi apparatus. What is its primary function in a cell?
13. Which part of the cell processes substances (proteins, etc) and then transports them from one part of the cell to another?
14. What is the measure of ostrich cell?
15. Evaluate the importance of the cell membrane's selective permeability.
16. Green coloured plastids contain the green coloured pigment called?
17. Property of biological membranes that allows some substances to pass across it while others cannot; also called semipermeable membrane
18. In prokaryotic cells, DNA is coiled up in a region called
19. Which of the following is the smallest unit of life that can carry out all life functions?
20. The thin membrane that separates the nucleus from the rest of the cell is called t
21. Which of the following statements is incorrect about Endoplasmic Reticulum?
22. What is the study of the shape and arrangement of cells in tissue called?
23. Which structure is responsible for photosynthesis in plant cells?
24. Which type of organelle is primarily involved in the synthesis of oils, phospholipids, and steroids?
25. Fill in the blank:Endoplasmic reticulum helps in assembling (collecting) and transporting proteins inside the cell to build and repair the cell.
26. This type of cell needs a cell wall and chloroplasts
27. Ribosomes are Ribonucleoprotein which are synthesized in:
28. What distinguishes xylem tissue from phloem tissue in plants?
29. Which organelle is often called the "control center" of the cell?
30. The small dense region in the nucleus where the assembly of ribosomes begins is called the
31. Which organelle is the "packing center" for the cell?
32. Gives the cell shape and protection, and controls what enters and leaves cell. Made of a lipid bilayer.
33. Which organelle is responsible for cellular respiration in eukaryotic cells?
34. What type of cell contain plasmids?
35. This scientist concluded that plants are made of cells:
36. A solution that is hypertonic to a cell has
37. What is the function of the Golgi apparatus?
38. Proteins, the building blocks of all cells, are made up of organic chemicals known as
39. What is the role of lysosomes in animal cells?
40. A portion of a mRNA molecule that determines one amino acid in a polypeptide chain is called a
41. Organs that work together to perform a related function is called ..... ?
42. A nail is inserted in the trunk of a tree at a height of 1 metre from the ground level. After 3 years the nail will
43. This scientist observed live cells and observed greater detail:
44. Assertion (A):Mitochondria are inherited maternally in most organisms. Reason (R):The egg cell contributes most of the cytoplasm, including mitochondria, to the zygote.
45. What tool do you use to view the cells?
46. In a hypotonic solution, the concentration of solutes outside the cell is lower than the
47. The basic structural & functional unit of life is called .....
48. The ..... is a membrane-bound organelle, which contains the cell's DNA.
49. Which year was cells found?
50. This structure regulates the passage of water, food and waste into and out of the cell.
51. Semi-permeable means
52. Rough Endoplasmic Reticulum (ER)
53. I contain the pigment Chlorophyll.
54. What are the four main types of cells?
55. Which macromolecule can be found in long thin chains that can be broken down into energy and layered sheets that provide structural support?
56. Is involved in the transport of proteins.
57. All cells have .....
58. Identify the process by which cells release energy from glucose in the absence of oxygen.
59. Typically, graphs are made with the ..... variable on the X (horizontal) axis and the ..... variable on the Y (vertical) axis.
60. The plasma membrane of a cell consists of two layers of
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