Ncert – class 9- science-Chapter 5 – The Fundamental Unit of Life Welcome to your Ncert - class 9- science-Chapter 5 – The Fundamental Unit of Life 1. Which of the following is not true about meiosis? It results in gamete formation None of these 4 daughter cells are formed The daughter cells have twice the number of chromosomes as the mother cell None 2. Geeta was asked to prepare a temporary mount of onion peel and list the steps. While writing, she wrote the following steps, which may not be in proper sequence. The correct sequence would be(i) Add a few drops of safranin to the watch glass(ii) Cover it with a coverslip(iii) Add a drop of Glycerine(iv) Take out onion peel(v) Place the peel in water in a watch glass(vi) Wash the peel with water and transfer to a clean slide(vii) Remove the extra water from the slide with blotting paper (viii) Examine the slide under a microscope i, ii, iii, iv, v, vii, vi, viii iv, v, iii, ii, i, vii, vi, viii iv, v, i, vi, vii, iii, ii, viii v, iv, i, vii, vi, viii, iii, ii None 3. Name one organelle present in a plant, that can make some of its proteins. Lysosome Golgi apparatus Mitochondria None of the above None 4. In a plant cell, cytokinesis occurs by Separation of the cytoplasm from the periphery to central region Separation of the cytoplasm throughout the equatorial plane simultaneously Separation of the cytoplasm from cell centre to its periphery Furrowing of cytoplasm from two sides at right angles to the plane of spindle pole None 5. Which component of a plant cell gives it rigidity and shape? Nucleus Cell membrane All of the above Cell wall None 6. If the mother cell cell has 24 chromosomes, the 2 daughter cells formed after mitosis will have ______ chromosomes. 48 24 12 36 None 7. Root hairs absorb water from soil through_______________ Diffusion All of the above Osmosis Imbibition None 8. Identifying feature(s) of onion cell under microscope are___________. Cell wall Peripheral nucleus All of the above Large vacuole None 9. Which part of the cell helps the transfer of material from the nucleus to the cytoplasm? DNA Nuclear pores Chromatin fibres None of the above None 10. Water molecules move from their ______ concentration to their ______ concentration during osmosis. Isotonic, higher Lower, higher Higher, lower Higher, isotonic None 11. Name two organelles having their own genetic component. Chloroplast and leucoplast Mitochondria and cell wall Golgi apparatus and cell wall Chloroplast and mitochondria None 12. What is membrane biogenesis? Process of forming biological organism Cell wall formation All of the above Process of building cell membrane None 13. Match column I with column II and select the correct answer using the codes given below: Column IColumn II(A) Amoeba, Paramoecium,Chlamydomonas (p) Lysosomes(B) Protoplasm(q) Unicellular organisms(C) Suicide bags of a cell(r) Purkinje in 1839(D) Chromatin material and nucleolus(s) Schleiden and Schwann(E) Cell theory(t) Nucleus (A)→q,(B)→p,(C)→r,(D)→t,(E)→s (A)→r,(B)→q,(C)→p,(D)→t,(E)→s (A)→q,(B)→r,(C)→p,(D)→t,(E)→s (A)→q,(B)→r,(C)→p,(D)→s,(E)→t None 14. Statement I : All prokaryotes have a cell wall, eukaryotes do not.Statement II : Prokaryotes have a true nucleus, eukaryotes have a primitive nucleus. Statement I is true but statement II is false. Both statement I and statement II are true but statement II is not the correct explanation of statement I. Both statement I and statement II are false. Both statement I and statement II are true and statement II is the correct explanation of statement I. None 15. Match the following correctly. List IList IIA) Rough endoplasmic reticulum1) AmoebaB) Lysosome2) NucleusC) Nucleoid3) BacteriaD) Food vacuoles4)RibosomesE) Chromatin material and nucleolus5) Suicidal bag A- 1, B- 3, C- 5, D- 2, E- 4 A- 3, B- 2, C- 4, D- 5, E- 1 A- 5, B- 4, C- 1, D- 2, E- 3 A- 4, B- 5, C- 3, D- 1, E- 2 None 16. How do substances like carbon dioxide (CO2 ) and water (H2O) move in and out of the cell? Diffusion and osmosis Active transport Osmosis Facilitated diffusion and diffusion None 17. The fact that nucleus possessed the ability to control phenotype was first determined by Experiments with radiolabelled phages Grafting experiments with Acetabularia Transformation experiments with Streptococcus pneumoniae Experiments with bacteria that identified DNA polymerase None 18. The type of cell division that is essential for reproduction is _______. Mitosis Both A and B None of these Meiosis None 19. The smallest cell is a _____________ measured between 0.1 to 0.5 micrometre in size. Fungi Bacteria RBC Virus None 20. Movement of ions or molecules against electrochemical gradient is called Active transport Brownican movement Diffusion Pinocytosis None Time's up Please Share This Share this content Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Leave a Reply Cancel replyCommentEnter your name or username to commentEnter your email address to commentEnter your website URL (optional) Save my name, email, and website in this browser for the next time I comment.
