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11. Cell, • Choose the correct option (a, b, c or d)., 1. Which of the following constitutes the fundamental basis of life?, (a) cell, (d) all of these, (b) tissue, (c) organ, 2. The scientist who discovered the nucleus was, (а) Нooke, (b) Schleiden, (c) Robert Brown, (d) Virchow, 3. Who formulated the cell theory?, (a) Hooke and Brown, (b) Schleiden and Schwann, (c) Leeuwenhoek, (d) Rudolf Virchow, 4.. Who first explained that cells arise from the pre-existing cells?, (a) Brown, (b) Schwann, (c) Leeuwenhoek, (d) Virchow, 5. Which of the following is a nonmembrane bound organelle?, (a) mitochondria, (b) ribosome, (c) chloroplast, (d) Golgi bodies, 6. The small circular DNA outside the genomic DNA in bacteria is called, (a) mesosome, (b) vesicles, (c) plasmid, (d) nucleoid, 7. Mesosome is the extension of, (a) cell wall, (b) plasma membrane (c) nuclear membrane (d) ribosome, 8. The structure formed after the attachment of several ribosomes on the mRNA is called, (a) fimbriae, (b) centrosome, (c) polysome, (d) centriole, 9. Fluid mosaic Model of plasma membrane was proposed by, (a) Davson and Denielli (b) Robertson, (c) Brown, (d) Singer and Nicolson, 10. Which of the following is correct about the cell wall?, (a) It is situated below the plasma membrane., (b) It is present in the cells of all organisms., (c) It is nonliving rigid structure forming an outercovering for the plasma membrane in plants., (d) Its composition is the same in all organisms., ed in the cytoplasm is called
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(a) DavsOn anu, 10. Which of the following is correct about the cell wall?, (a) It is situated below the plasma membrane., (b) It is present in the cells of all organisms., (c) It is nonliving rigid structure forming an outercovering for the plasma membrane in plants., (d) Its composition is the same in all organisms., 11. The network or reticulum of tiny tubular structures scattered in the cytoplasm is called, (a) Golgi bodies, (b) endoplasmic reticulum, (c) microtubules, (d) matrix, 12. Which organells are usually attached on the outer surface of rough endoplasmic reticulum?, (d) ribosomes, (a) vesicles, (b) cisternae, (c) thylakoids, 13. Golgi bodies are found in, (a) all cells, (b) bacterial cells, (c) erythrocytes, (d) all cells except erythrocytes and bacterial cells, 14. Dictyosones are, (a) a class of ribosomes, (b) the places of flagellar origin, (c) respiratory particles, (d) Golgi bodies, 15. The functional unit of the Golgi apparatus are, (a) cristae, (b) cisternae, (c) thylakoids, (d) lamellae, 16. The Golgi apparatus is absent in, (a) higher plants, (b) yeast, (c) blue-green algae, (d) liver cells, 494
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वस्तुनिष्ठ प्रश्न, (0) packaging and modifying proteins, (b) protein biosynthesis, (c) protein degradation, (d) photosynthesis, 18. Lysosomes contuia various, (a) respiratory enzymes, (b) synthetic enzymes ic) hydrolytic enzymes (d) hormones, 19. Lysosomes are formed by the, (a) iavagination of plasma membrane, (b) process of packaging in the Golgi apparatus, ie) dissolution of ribosomes, (d) vagination of nuclear membrane, . The icfoldings of the inner membrane of mitochondria are, (a) cisternae, (b) vesicles, (c) cristae, (d) matrix, 1. The particles attached to the inner membrane of mitnchondria are called, (a) ribosomes, (b) F, particles, (c) F, particles, (d) lysosomes, 11. The outer and inner membranes of mitochondria are, (a) structurally and functionally similar, (c) structurally similar but functionally different, (b) structurally and funetionally dissimilar, (d) structurally different but functionally similar, 23. Mitcchondrial matrix contain, a) enzymes, (b) ribosomes, (c) DNA and RNA, (d) all of these, 24. The organelles called 'power houses' of the cell are, (a) Golgi bodies, (b) ribosomes, (c) mitochondria, (d) nucleus, 25 The solar energy is converted into chemical energy by, (a) mitochondria, (b) peroxisome, (c) ribosome, (d) chioroplast, 26. All plastids have similar structure because they can, (a) store starch, lipids and proteins, (c) perform same function, (b) get transformed from one type to another, (d) be present together
