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Note On Cell Structure And Function ???

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Published in: B.Ed | Biology | Botany
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"Easy and clear notes on Cell Structure and Function with diagrams and key points for quick revision."

Rizwana P / Jhansi

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  1. CELL STRUCTURE & FUNCTION MCQs What is the primary component of cell membrane? a) Lipids b) Proteins c) Nucleic acid d) Carbohydrates
  2. Cell Organelles
  3. Cell Organelles Structure and Functions with diagram Plant Cell Structure Animal Cell Structure
  4. STRUCTURE AND FUNCTIONS OF DIFFERENT CELL ORGANELLES
  5. (pomeqble) Innu membiane ( Semi:peYNRAbk) Ribosomes (703) CJis+A MQ4W(flojd enclosed by— ez—rmernbtqne)— —-oxysome-LATP-SYD}bqg earl —ease (fn) Qs±idq LAW6izedæEqsily qsedwon lonplQ5+S Chyonopnsys Leocoplasf5 J-) no-pigmen LeucoplQS+- These aye C010öless _ or-YQYieUShqpes qnd SizesADllbÆfoyed nu+biems• They ind10d myloplQ3i-s.WSIoye-61QYCbæE3• pomo Elqioplagie 61me Oi&5 and f015 Aleoyoptqsl$.•- pyoleiDS——
  6. * Cell : Robeö+ H00Ke- Digcovebed Cell (Dead cell) Book micyoyqphia Anion Robey+ 3ÜOG)D- coveyeUnucveos PIQnys have ct_ll (DQII pnsmu memb • Cho ino (Nocleoid) mollesh—celF- Mycop ve—cel) .00cYebiQ.-gzSNm Rßc—mo micto 9 DNA 0Ägqmues—
  7. HOY.
  8. components of Cells e living cell is called oto lasm. Protoplasm = N ucleus + Cytoplasm Cell Membrane lasma Membran IIS from on another Protects the cell from the surrounding medium s porous an allows substances to move in and out of the cell Jelly-like substance between the nucleus and the cell membrane Contains Organelles of cells, such as itochondrja, golgi bodies, ibosomes et It is usually spherical, ituated in th centre of the cell, and is vital part of a livingcell. Genes: Units of inheritance in living organisms which transfer hereditary characteristics from parents to offspring. Genes of parents combine in different ways to produce different characteristics in their offspring. 8 Acts as contro centre of all the cell activities. It also plays an important role in inheritance. Nuc ear Membrane: The covering of the nucleus which separates the nucleus from the cytoplasm. It is rousand all the cytoplasm and nucleusto exchange materials. ucleolus: Usingthe icroscope of higher magnification, we seea smaller pherical body insid the nucleus which is I led the nucleolus. Nucleolus plays a vital role in making proteins in the cell. Chromosomes: Thread-like structures in the nucleus which carry genes.
  9. OP_ roacEuB reu ON9 lasrîo —+CEEfÀ11HgeneY NAM enzyme Pili —C LiÊid
  10. UNIT TEST:' Cell — Structure and Function Multiple Choice Questions I. It is responsible for the beginning of the life of organisms. (A) Tissue (B) Zygote (C) cell (D) Embryonic layer 2. Who proposed the cell theory? (A) Singer and Ntcholsen (B) Schssann and Schleidcn (C ) Hook and Brown (D) Robcrtson 3. Who proposed that cells arise through cell division Of pre-existing cells. (A) Robert (B) Rudolf Virchow (C) Robert Brown (D) Stnger 4. It the Smnllest Cell. (A) Bactcrta (B) Mycoplasm (C) Yeast (D) Blue green alg'R S. Prokaryotic cells have which architectural regions? cell (B) Appendages (C) Nucleus 6. The association of more than one ribosome with a single molecule of m- RNA complex called as... (A) Polypeptide (B) Polysome (C ) Polymer (D) poly Saccharide 10
  11. MCQs: 2- 3. 4. 5. 6. 7. What role(s) does the cytoskeleton play 'n a living cell? a. Maintajninq ceil shape b. Movement t. Contraction d. Of these Eukaryotic cen differs from prokaryotic Of the fof'owinq EXCEPT: a. Chlorophyl/ scattered in cytoplasm b. Presence of ribosomes c. Go!gi apparatus d. In structure and contents of cell way The number of chromosomes in tobacco is: o. as b. 48 c- 46 d. 47 Proper arrangement Of loyets in pion! cell from inside to outside is: 9. The middle Jurne!'a o/ ceqwall is composed Of: a. Cellulose b. Pectin C. Lignin d. Murcin The membrane enclosed spaces of endoplasmic reticuJum are called' o. Lamellae b. Cisternoe c. Stroma d. Cristae a. b. d. Primary wall, Secondary wan. Middle 'ornella Secondary wall, Primary wall, Middle fornelta Primary Middle lamella, Secondary wall Secondary wail, Middle lamella. Primary wall Lysosomes Ore sometimes called: o. Peroxisomes b. Mesosomes c. Phagosomes d. G'ycnsomes In the level of green plants, peroxisomes are the sites of a. Respiration b. Photosynthesis c. Photorespiration d. Phototropism Which one is A-nucleated cell? a. b. Bird RBC Mammal RBC Myocyte Hepatocyte 10. Al! of the following refers to ryscsomes EXCEPT: a, Slightly larger than mitochondria b. Rough spherical c. Single membrane bounded d. Contain powerful digestive enzymes A special protein carrier in plasma 11. rnembrane is: a. Catalase b. Lapase C. PermeGSC d. Arginase 12. A botanist who proposed the cell theory was: a. Schleiden b. Schwann c. Robert Hook d. Kohler All types of plastids are produced 13. from: a. Chloropfastids b. prop!ast'ds c. Chromoplastids d. leucop'astids Nuclear pores RBC are: 14. a. 10 thousands b. 30 thousands c. 3 t04 d. none cristae are also called'. IS. a. Leaf veins b. Microvi!/i c. Capillarjes 11

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