Cell The Unit of Life Test No-10 August 5, 2017admin0 Comments CategoriesCell The Unit of Life NEET Foundation Class VIII-Botany-Cell The Unit of Life 1. Mature Sieve tube cells (of phloem) lack Cytoplasm Cell membrane Nucleus Cell wall 2. Microbodies that protect cells from toxic effect of hydrogen peroxide are Glyoxysomes Peroxy somes Sphaerosome Lomasomes 3. Structures involved in the conversion of stored lipids to carbohydrates Sphaerosomes Lysosomes Peroxy somes Glyoxysomes 4. Loose indistinct network of nucleoprotein fibers observed in an eukaryotic nucleus are Chromosomes Axoneme Chromatin fibres Metaphasic chromosomes 5. Which of the following is observed in most of the eukaryotic chromosomes Primary constriction Secondary constriction Satellite All of these 6. Diameter of a nucleosome bead is 200nm 10nm 146 nm 20nm 7. Ratio between number of kinetochores present in a centromere to that of number of turns of DNA present around a nucleosome core respectively is 1:01 1:02 2:01 1 : many 8. Unrelated aspect of glyoxylate cycle is Commonly observed in fat rich germinating seeds Concerned with production of carbohydrates Needs micro bodies like peroxisomes, glyoxysomes and ribosomes It is metabollic pathway concerned with conversion of lipids. 9. Number of types of histone proteins observed in an eukaryotic chromatin fibre with 100 nucleosomes is 500 800 900 5 10. This is correct association of Ribosomal units 30S and 60S 50S and 60S SOS and 40S 60S and 40S 11. All living cells have Cell wall Cell membrane Chloroplasts Mitochondria 12. The rough enoplasmic reticulum (RER) in the cells are because of the presence of Lipids synthesizing enzymes associated with ER Ribosomes on the surface of ER Volutin granules on the surface of ER Sulphur granules on the surface of ER 13. The plasma membrane consists mainly of Phospholipids embedded in a protein bilayer Protein embedded in a phospholipid bilayer Proteins embedded in a polymer of glucose molecules Proteins embedded in a carbohydrate bilayer 14. Golgi body arises from plasma membrane ER vacuole Chloroplast 15. Character observed in prokaryotic cell is the presence of Well defined nucleus Double membrane organells Cell membrane but not cell wall Circular genomic DNA 16. Surface structure in bacterial cell that help in attachment to substratum Fimbriae Lamellae Flagella Plasma membrane 17. Cell envelope in a bacterial cell consists of Cellwall, flagella, pili Glycocalyx, cell wall, plasma membrane Capsule, slime layer, cell wall Plasma membrane, flagella, slime layer 18. Correct statement about mesosomes is In foldings of cell membrane in prokaryotes Prevent bacterium from bursting Provides antibiotic resistant character Extra chromosomal DNA present in bacterial cells Loading … Related posts: Cell The Unit of Life Test No-1 Cell The Unit of Life Test No-2 Cell The Unit of Life Test No-3 Cell The Unit of Life Test No-9 Cell The Unit of Life Test No-11 Powered by YARPP.