1st Year Biology Chapter 4 The Cell MCQs Short Questions Notes

biology 11th notes Chapter 4

1. Tay Sach’s disease is because of:


2. The intake of solid food by infloding of cell membrane is called:


3. Lysosomes arise from:


4. Isolation of cellular components to determine their chemical composition is called:


5. function pairs is mismatched?


6. The E.R. material is separated from cytoplasmic material by spherical or tubular membranes, called:


7. The diploid number of potato is:


8. The site of enzymes directing the metabolic oxidation (respiration), ATP synthesis and considered as power house of cell are:


9. Chimpanzee has:


10. A chromosome whose centromere lies at one end:


11. _____increases size of an object.


12. Growth and development of plant is the function of:


13. Mitochondria are composed of:


14. The largest organelle in a mature living plant cell is the:


15. The chloroplasts develop from:


16. Ribosomes are attached with ER by:


17. Golgi apparatus was discovered by Golgi in:


18. Ribosomes are chemically composed of:


19. The structure within a cell that distinguishes the cell as being eukaryotic, and prokaryotic is:


20. Chromatids are held together at:


21. The matrix surrounding the grana in the inner membrane of chloroplasts is:


22. Modification of proteins and lipids as glycopeptides and glycoproteins occur in:


23. If a gene mutation prevents formation of an enzyme normally used by a lysosomes, a disease may result known as:


24. A chromosome with the centromere located very close to one end so that the shorter arm is very small is termed as:


25. SER is abundant in cells that are involved in:


26. The primary structural components of centrioles are:


27. Erythrocytes have:


28. By which of the following can movement of materials across animal cell membranes be accomplished? I. Active transport, II. Diffusion, III. Pinocytosis


29. Which organelle releases oxygen?


30. The transport vesicles from the Endoplasmic Reticulum (ER) fuse with the of the Golgi apparatus.


31. proteins occurs in:


32. Each chromosome consists of two identical:


33. Somatic cells of a human have chromosomes and are called:


34. Which of the following organelles or structures is found in both plant and animal cells?


35. The outer most layer of cell wall is:


36. Ribosomes are synthesized in:


37. Which of the following correctly matches an organelle with its function?


38. Grana is the site for:


39. The soluble part of cytoplasm is:


40. A cell that is missing lysosomes would have difficulty doing what?


41. The eukaryotic larger sub unit sediments at:


42. Ribosomes are constructed in the:


43. Functional organelles by a cell through the action of enzymes originating within the cell is referred to as:


44. Robert Hooke in 1665 reported his work about cell in his famous publication:


45. Which of the following cell part is described as a “fluid mosaic”?


46. “Protein’s icebergs in a sea of lipids” is stated by:


47. The movement of material, requires energy is called:


48. Which of the following would you not find in a bacterial cell?


49. A cell with many nucleus is called:


50. Long, unbranched, slender tubulin protein structure is:


51. The soluble sap of nucleus is called:


52. Underground parts


53. Cell wall is secreted by:


54. Which of the following is not a membranous organelle?


55. Fungal cell wall contains:


56. Which one of following is true about chloroplast?


57. Which one of the following is an exception to cell theory?


58. Rigidity of leaves and younger parts of plant is contributed by:


59. Lysosomal sacs are rich in:


60. Robert Brown is well known for his discovery of:


61. Under electron microscope, a chloroplast shown three main components, the envelope, the stroma and the:


62. Glyoxisomes are most abundantly found in:


63. What is a microscope’s ability to distinguish between separate objects that are close together?


64. Micro filaments are composed of contractile protein.


65. Peroxisomes, in diameter, are approximately:


66. Which statement about nucleolus is not true?


67. According to mosaic model by Singer and Nicholson plasma membrane is composed of:


68. Prokaryotic cell wall is composed of:


69. The three dimensional network of protein filaments within the cytoplasm of eukaryotic cells is called the:


70. What are the two faces of the Golgi body?


71. Peroxisomes and Glyoxisomes are:


72. The diagram below shows the structure of chloroplast. The structure labeled as x is:


73. Infoldings of inner membrane in mitochondria are called:


74. Each chloroplast encloses a system of flattened, membranous sacs called:


75. The most important function of cytoplasm for vital chemicals is to act as:


76. Dictyosome is also known as:


77. The covering of vacuole is known as:


78. The factory for protein synthesis is:


79. Endoskeleton of a cell is made up of:


80. Maintenance of cell shape is the role of:


81. A semi permeable membrane is stretched across a chamber filled with water. The membrane is only permeable to water. 60 mg of salt is added to the left side of the chamber. Which of the following will happen?


82. These are involved in conversion of fats to carbohydrates by oxidation of fats:


83. Chromosome with equal arms is called:


84. The door to your house is like the of a cell membrane.


85. In animal cell, two centrioles located near the of nucleus.


86. Within chloroplasts, light is captured by:


87. What part of the cell serves as the intracellular highway?


88. An animal has 80 chromosomes in its gametes, how many chromosomes would you expect to find in this animal’s brain cells?


89. Cell membrance is chemically composed of lipids and:


90. Cell wall consists of:


91. Contrary idea to abiogenesis was proposed by


92. In which organelle following reaction takes place? 6CO₂ + 6H₂O + Energy C₆H₁₂O₆ + 6O₂


93. Omnis callula e cellula is hypothesized by:


94. Hydrogen peroxide degradation in a cell is a function of:


95. The length of each mitochondrion is about:


96. Lysosomes have:


97. Insulin is secreted from cells by a process called:


98. Various parts of cells are separated by:


99. Xanthophyll is a pigment having:


100. One of the following is not double membranous structure:


101. On are average, there are 50 or more thylakoids piled to form one:


102. Sodium ions are “pumped” from a region of lower concentration to a region of higher concentration in the nerve cells of humans. This process is an example of:


103. The cisternae with associated vericles is called:


104. What is the power of the objective lens of a microscope if an eyepiece of power 10x is used and the total magnification of the object is 40x?


105. The microfilaments are composed of:


106. Prokaryotes divided by:


107. A group of ribosomes attached to m.R.N.A. are known as:


108. Biochemically the ribosome consists of_____ and some 50 structural ___


109. Adjacent plant cells are “cemented” together by:


110. Membranes bounded, mostly pigmented bodies in cytoplasm of plants cells only are:


111. Who reported the presence of nucleus in the cell.


112. In a typical compound microscope the resolution is:


113. Dye injected into a plant cell might be able to enter an adjacent cell through a:


114. Which of the following are regularly assembled and disassembled during cell cycle?


115. Which type of cell would probably be most appropriate to study chloroplasts?


116. Phagocytosis, autophagy and extracellular digestion are the functions of:


117. If you were examining various unlabelled slides of cells under the microscope, you could tell if the cell was from a plant by the presence of:


118. It is a mesh of interconnected membranes that serve a function involving protein synthesis and transport.


119. Plant cell wall:


120. Which organelle is known as power house of cell?


121. Plant cells contain the following 3 things not found in animal cells:


122. Mitochondrial infolds are called:


123. Microtubules consist of helically stacked molecules of the protein:


124. Which one is concerned with cell secretion:


125. The Haploid chromosomal number of human sperms and eggs is:


126. The inner surface of crystal in mitochondrial matrix has small knob ilke structure known as:


Short Questions

1. Define active transport?
2. Define autophagosome.
3. Define cell theory?
4. Define chromatids?
5. Define differentially permeable membrane.
6. Define fluid mosaic model of cell membrane.
7. Define microfilaments?
8. Define osmosis?
9. Define Vacules?
10. Differentiate between phagocytosis and pinocytosis?
11. Give the chemical composition of primary and secondary cell wall.
12. Give the function of endoplasmic reticulum.
13. Give the important functions of cytoplasm.
14. Give the name of Robert Hook publication on cell discovery.
15. How does autophagy help in converting a tadpole larva into an adult amphibian?
16. How does the central atom of chlorophyll and haem differ?
17. How many components are of plasma membrane?
18. How many morphologic forms of endoplasmic reticulum are present? What are these?
19. How many thylakoids are present in a granum?
20. How many types cells are divided into?
21. How much water is present in cytoplasm?
22. Is there any similarity between bacterial and plant cell wall?
23. List the processes blocked b mitochondrialfailure in a cell?
24. Name different types of RNAs?
25. State various structural modifications in a cell involed in secretions?
26. Whar are subunits of eukaryotic ribosomes?
27. What are F1 particles?
28. What are microfilaments? Give their functions.
29. What are peroxisomes?
30. What are plastids?
31. What are proplastides?
32. What are storage diseases? Give an example.
33. What are the main functions of cell membrane?
34. What are thylakoids?
35. What do you mean by multinucleate cells?
36. What does lie inner to cell membrane?
37. What is active transport?
38. What is chromatin network?
39. What is chromoplast? Give its functions.
40. What is cisternae?
41. What is cyclosis?
42. What is cytoskeleton?
43. What is cytosol?
44. What is endocytosis? Differentiate betwenn phagocytosis and pinocytosis.
45. What is endoplasmic reticulum?
46. What is endosytosis?
47. What is fluid mosaic model of DNA?
48. What is fractionation?
49. What is glycogenosis type ll disease?
50. What is granum?
51. What is meant by nucleoplasm?
52. What is nucleoid?
53. What is pinocytosis?
54. What is polysome?
55. What is primary lysosome?
56. What is resolution of human eye and electron microscope?
57. What is scculus?
58. What is the composition of cell or plasma membrane?
59. What is the diameter of peroxisomes?
60. What is the function of chloroplasts?
61. What is the function of golgi complex or apparatus?
62. What is the function of microfilaments?
63. What is the function of microtubules?
64. What is the function of muscle nerve and gland cells?
65. What is the function of red blood and stomach cells?
66. What is the function of xylem and phloem?
67. What is the major difference eukaryotes and prokaryotes?
68. What is the most important function of the cytoplasm?
69. What is the role of intermediate filaments?
70. What is the shape and size of chloroplasts?
71. What is the work of Lorenz Oken?
72. What was generally believed about the comosition of plasma or cell membrane?
73. What will happen if a chromosome loses its centromere?
74. When is the composition of primary wall?
75. When nucleus of the cell is visible?
76. Where glyoxisomes are most abundantly found?
77. Which organisms have centrioles?
78. Which RNA is present in ribosome?
79. Who finally formulated cell theory?
80. Who isolated lysosomes?
81. Why eukaryotic ribosomes are said to ribonucleoprotein particels?
82. Why name peroxisome was applied?
83. With which enzymes peroxisomes are enriched?
84. Write down salient features of cell theory.
85. Write down two functions of golgi apparatus.
86. Write role of glyoxysomes.

Long Questions

1. Discuss structure and functions of endoplasmic reticulum.
2. Write a note on glyoxisomes.
3. Write a note on Ribosomes.
4. What are plastids? Explain the structure and function of chloroplast. Draw figure.
5. What are lysosomes? Explain their phagocytic role with the help of diagram.
6. Define cell membrane. Explain its functions.
7. Differentiate between cell wall and cell membrane?
8. Differentiate between endocytosis and exocytosis?
9. Define active, passive and facilitated transport?
10. Differentiate between unit membrane model and fluid mosaic model?
11. Differentiate between primary wall and secondary wall?
12. Differentiate between plant, fungal and bacterial cell wall?
13. Differentiate between SER and RER? Write their functions.
14. Write composition and function of cytoplasm?
15. Define ribosomes? Describe its sub units?
16. Define polysome and autophagy?
17. Differentiate between primary and secondary lysosomes?
18. Write functions of lysosomes?
19. What are storage diseases? Explain with examples.
20. Define tonoplast? Write the functions of vacuole.
21. Differentiate between microtubules and microfilaments?
22. Differentiate between cisternae and critae?
23. What is plasmid? Differentiate between chromoplast and leucoplast?
24. Describe chemical composition, structure and functions of chromosomes?
25. What are thylakoid. granum and intergranum?
26. What are nuclear pores? Write its functions
27. What is stroma? Give its function.
28. Differentiate between prokaryotic and eukaryotic cells?

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