Cell The Unit of Life Test No-13 August 5, 2017admin0 Comments CategoriesCell The Unit of Life NEET Foundation Class VIII-Botany-Cell The Unit of Life 1. Number of centromeres present in acentric chromosome 2 3 2 0 2. Anthocyanins impart the following colours Blue Pink Violet All the above 3. Major cell wall material present in the cell wall of fungal cells is Cellulose Suberin Chitin Cutin 4. Leucoplast does not contain A) ChlorophyllsB) Carotene C) XanthophyllsD) Anthocyanin Except D AB only BC only ABCD 5. The two subunits of ribosomes get associated in the presence of the following ion Mg+2 Ca+2 Fe+2 Fe+3 6. Tonoplasm is made up of (I) H2O (II) Metabolic bye products(III) Secretory substances (IV) Excretory materials I only I, IV only I, II, IV only I, II, III, IV 7. Arrange the following cells in an ascending order based on their size. i) Mycoplasma ii) Ostrich egg iii) Human RBC iv) Bacterium i, iv, iii, ii i, ii, iii, iv ii, i, iii, v iii, ii, i, v 8. Structural, functional and hereditary unit of all living organisms is Nucleus Protoplasm Cell Gene 9. Single, circular, naked, coiled DNA molecule of a prokaryote represents Nucleoid Chromosome Heterokaryon Plasmid 10. The study of cells is evolved into a branch of science with the Discovery of a cells by Robert Hooke Publication of micrographia Invention of microscope by Zacharias Jannsen Discovery of bacteria by Leeuwenhoek 11. The scope of cell theory was extended by Schleiden & Schwann R.Virchow Robert Hooke Corti 12. Living cells having a distinct cell wall were first discovered by Leeuwenhoek are Bacteria Cork cells Blue green algae Mesophyll cells 13. Middle lamellum is chemically rich in Suberin Pectin Chitin Lignin 14. Cell plate which transforms into middle lamellum is secreted by Plasma membrane Golgi complex ER Phragmoplast 15. Thin areas in the primary wall are called Pits Primary pit fields Plasmodesmata Torus 16. Highly rigid cell wall in the following is Suberised wall Lignified wall Cutinised wall Primary cellwall 17. The structure that acts as intercellular cementing substance and binds adjacent cells together is Desomosome Primary cell wall Middle lamellum Secondary cell wall 18. The seat of a number of biologoical process in a cell is Nucleous DNA Protoplasm plasma membrane Loading … Related posts: Cell The Unit of Life Test No-6 Cell The Unit of Life Test No-7 Cell The Unit of Life Test No-8 Cell The Unit of Life Test No-15 Cell The Unit of Life Test No-16 Powered by YARPP.