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Prana CHOICE QUESTIONS, , solect the correct option out of the four possible options given after the statement of the question :, , Q.1. Which of the following options are not a function of Ribosomes ?, (i) Ithelps in manufacture of starch grains., (ii) Ithelps in manufacture of hormones., (iii) Ithelps in manufacture of enzymes., , (iv) It helps in manufacture of protein molecules., (c) (iit) and (io) (d) (i) and (i), , (a) (i) and (iii) (b) (ii) and (iii), Q.2. Chromosomes are made up of, (a) RNA (6) DNA (c) Protein (d) DNA and Protein, , Q3. Which of the following can be crystallised ?, , (a) Anamoeba (b) Asperm (d) A bacterium, , (c) A virus

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Qu., , Q.6., , * Qz., , , 8., , Q9., , « Q.10., , Q.11., ¢Q.12., Q.13., , Qu., , Q.15., , A cell will swell up if placed, (a) in isotonic solution., , (c) in hypertonic solution., Which one of the following is a correct definition of osmosis ?, , (a) Movement of solute molecules from lower concentration to higher concentration through ,, semipermeable membrane., , (6) Movement of water molecules from a region of high solute concentration to a region of low, solute concentration through a semipermeable membrane., , (c) Movement of solvent molecule from higher solute concentration to lower solute concentration, , through a permeable membrane., (d) Movement of solvent molecules frof low solute concentration to a region of high solute, , concentration through a semipermeable membrane., Which of the following is a correct definition of plasmolysis in a plant cell?, (a) Lysis (break down) of cell membrane in hypotonic medium., (6) Shrinking of nucleoplasm., (c) Shrinkage of cytoplasm in hypertonic medium., (d)_ Lysis of cell wall and cell membrane in hypertonic medium., Which one of the following cell organelles is covered by a single membrane?, , (b) in hypotonic solution., (@) in concentrated sugar solution., , (a) Vacuole (b) Plastid (c) Golgiapparatus (d) Mitochondria, The cytoplasmic connections from cell to cell are known as, , (a) middle lamella. (6) plasmodesmata., , (c) endoplasmic reticulum. (d) chromatin., , Which of the following statements are false ?, , (a) Mitochondria and plastid have their own DNA., , (b) Lysosomes are pinched off from Golgi apparatus., , (c) ATP is generated in mitochondria., , (d@) Cytoplasm is also called protoplasm., , Carbohydrates are present in the plasma membrane in the form of, , (a) cellulose. (b) starch., , (c) hemicellulose. (d) glycolipids and glycoproteins., Tonoplast is a differentially permeable membrane surrounding the, , (a) cytoplasm. (b) vacuole. (c) nucleus. (d) mitochondria., Cell wall of which one of these is not made up of cellulose ?, , (a) Lotus. (6) Pitcher plant. —(c) Cactus. (d) Bacteria., , Amoeba captures its food through a process known as, , (a) exocytosis. (b) plasmolysis. (c) endocytosis. (d) both (a) and (c)., The nuclear region of prokaryotes is also known as, , (a) nucleolus. (b) centrosome. (c) nucleoid. (d) nucleic acid., , Living cells were discovered by, (a) Purkinje (b) Robert Hooke = (c) Leeuwenhoek (d) Robert Brown, , 24 | U-LIKE Science-IX + (TERM-I)

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0.16. Which of the following cell organelle forms lysosome ?, , (a) Cell membrane ., (¢) Endoplasmic reticulum : Golgi, , Quit. 1 pm is equivalent to oppecetn, (ay 10*m (6) 10° m (©) 10%m ( 10°m, , us. Middle lamella is formed of, , (a) calcium pectate. —_(b) cellulose. (¢) hemicellulose. (@) lignin., 19. Identify a non-membranous organelle from the following :, , (a) Lysosome (b) Ribosome (€) Chloroplast (@) Golgi apparatus, 20. Which of the following cell organelles are seen in prokaryotic cell ?, , (@) Mitochondria ——_() Plastids Ribosomes yysosomes, Qui. Contractile vacuole takes part in . =, (a) Absorption of water. (b) Osmoregulation., (c) Excretion. (d) Both (b) and (¢)., Q.22. Organelle other than nucleus, containing DNA is, (a) Chloroplast. (6) Golgi apparatus., (c) Lysosome. (@) Endoplasmic reticulum., 9.23, Who gave the statement that cells arise from pre-existing cells ?, (a) Virchow (b) Haeckel, (¢) Hooke (@) Schleiden and Schwann, Q.24. Type of cell division involved in growth of the body is, (a) Binary Fission (b) Meiosis (c) Mitosis (d) None of above, , 0.25. Out of the following, one of the option is not the function of ribosomes :, (i) ithelps in manufacture of proteins. _ (i) it helps in synthesis of lipids., (iii) it helps in synthesis of enzymes. (iv) ithelps in synthesis of hormones., (a) (i) and (i) (0) (@ and (iif) (2) (0, (ii, Go) (d) (if), 0.26. Find out the incorrect statement., (a) Nucleus, plastids and mitochondria have DNA., () Vacuoles, plastids and ribosomes, none of them have DNA., (c) Endoplasmic reticulum helps in synthesis of lipids., (d) Plant cells are bound by cell wall and cell membrane., 0.27. A great scientist used silver nitrate to study, , (a) Endoplasmic reticulum (b) Golgi apparatus, (c) Nucleus (d) Mitochondria, , Q.28. The only cell organelle that is also present in the prokaryotic cell is, (a) mitochondria (6) vacuole (c) ribosomes (d) hysosome, , Q.29, Select the odd one out., (@) Plasma membrane contains chitin sugar in plants., (6) Molecules soluble in organic solvents easily pass through plasma membrane., (c) Allmembranes in the cell are made up of organic molecules., (@ Movement of water across a semipermeable membrane is affected by its solute concentration., , The Fundamental Unit of Life | 25

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=—_" °°, , Q.30. When a plant cell is placed in pla, (a) plant cell does not have water,, (c) plant cell is more dilute., £Q.31. Which of the foll, (i) Plastids - osmoregulation., (iii) Ribosome = protein synthesis., (a) ©.) (6) (i), , owing is correctly matched ?, , in water, water enters it because, , (b) water can enter easily., (d) plant cell is more concentrated,, , (ii) Vacuole - storage of food., (iv) Cell wall - selectively permeable., () (iii) (d) (i), (it), (ivy, , The membrane that surrounds the vacuole is, (b) plasma membrane, , Q.32., (a) tonoplast, (c) double membrane (d) no membrane, Q.33. The energy requiring process in the form of ATP, (a) Osmosis (¥) Diffusion (c) Plasmolysis (d) Active transp,, Q.34. Choose the correct option if, : Mitochondria : 2, , Chloroplast : Photosynthesis :, , , , (c) Cellular respiration (d) Diffusion, , , , , , (a) Imbibition (b) Transportation, Q.35. What will happen to our RBC if the nurse accidentally injects pure water instead of a»),, (a) RBCs will shrink. (b) RBCs will burst., (c) No net change in size. (d) No impact., Q.36. An unripe green mango contains :, (2) Chromoplasts (b) Chloroplasts _{c) Leucoplasts (d) (6) and {c), Q.37. Which of the following matches the two columns correctly ?, Column A Column B a, (@ Vacuole- (A) No membrane 7, (ii) Ribosome (B) Double membrane, (iii) Mitochondria (C) Double membrane with pores, (iv)_Nucleus (D) Single membrane, , , , , , , , (@) ()- (A), (i) - @), (if) - (©), (io) - (D), (0) ()-(A), Gi) - (), (it - (©), (in) - 8), , (6) ()-(D), (i) - (A), (if) ~ B), (2) ~(C), (@) (= (D), (i) - (B), (i) - (4), Gv) ~(C), , Which of the following matches the two columns correctly ?, , , , , , , , , , Q.38., Column A Column B, (i) Robert Hooke (A) Protoplasm, (i) Purkinje (B) Nucleus, (iii) Leeuwenhoek (C) Free-living cell, (iv) Robert Brown (D) Cell, , , , (@) (= (D), (i) - (A), (if) - ©), (0) ~ (8), (0 (-(), (iB), (iti) - (D), (iv) - (4), , ® (-(A), (i) - @B), Git) (D), (io) -(0), (4) ()-(D), (ii) - (B), (itt) - (C), (iv) - (A), , Q.39. Which of the following matches the two columns correctly ?, , , , , , ‘ —* Column A Column B, @ Exchange ile (A) Plasmolysis, (ii) Endosmosi8;. (B) Osmosis..., (iii) Absorption of water by root hair - (CQ) Diffusion, , | (ie) Cell loses water through osmosis, , , , (D) Hypotonic solution

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a, , Qld., , Qal., , , OA2., , Q.43., , Q.45., , Q.46., , 47., , 0.48., , , , (a) ()-(O. “ -(D), tii ~ (B),(iv)}-(A)—(b) (i) = (D), (ii) ~ (C), (iti) = (A), (iv) - (B), () ©) i) ~ (A), i) = (D), (i) - (By (a) (i) - (B), (ii) - (A), (iit) - (©), (iv) - (D), Which of the following matches the two columns correctly ?, , , , , , , , , , , , , Column A COMA, . an (A) Kitchen of the, p eee (B) Role in cellular reproduction, Clee (C) Power house of the cell, ee) Lysneome (D) Suicide bags of the cell &, , , , (a) ()-(B), Gi) - (D), (iti) - (©), (iv)- (A) -(B), (4) = (©), (i) - (A), (0) - (D), (c) (©) Gi) - (A), (aid) - (B), (iv)-(D)—@)_() - (A), (ii) - (D), Gi) - 8), 2) -O), , A young raw banana is green on the outside but turns beautiful yellow when ripe. This is, because, , (a) chromoplasts change to chloroplasts. —_(b) chloroplasts change to chromatoplasts., (c) chloroplasts change to chromoplasts. (4) chloroplasts change to chromosomes., , Choose the correct option :, , Mitosis : 2 daughter cells :: Meiosis : daughter cell/s., (a) 1 (b) 2 3 (d) 4, Which of the following is not correct ?, , (2) Robert Brown discovered the cell., , (b) Schleiden and Schwann formulated the cell theory., , (c) Virchow explained that cells are formed from pre-existing cells., , {d) A unicellular organism carries out its life activities within a single cell., , |. Which of the following is correct ?, , (a) Cells of all living organisms have a nucleus., , (b) Both animal and plant cells have a well defined cell wall., , (a) In prokaryotes, there are no membrane bound organelles., , (@) Cells are formed de novo from abiotic materials., , Composition of plasma membrane shows presence of:, , (a) Proteins and lipids (b) Fats and sugar (c) Sugar and proteins (d) Only proteins, Sometimes many ribosomes attach to a single mRNA to form, , (a) RNA (b) DNA (c) polyribosome (@) poly mRNA, , A prokaryotic cell shows special membranous structure formed as an extension of plasma, membrane, called, , (a) Mesosome. (b) Cytoplasmic membrane., , (c) Pro membrane. (d) Peroxisome., , Middle lamella is, , (a) layer that is in the middle of cell. (b) layer that holds cells together., , (c) in folds of membrane. (a) present in animal cells.