Cell The Unit of Life Test No-3Cell The Unit of Life / By admin NEET Foundation Class VIII-Botany-Cell The Unit of Life 1. Cell membrane is chemically composed by Lipids Carbohydrates Proteins All the above 2. The approximate percentage of proteins and lipids in the cell membrane of human erythrocyte respectively is 40 and 52 42 and 50 52 and 40 48 and 52 3. Most widely accepted model for plasma membrane is Sand witch model Fluid mosaic model Unit membrane model Trilamellar model 4. The fluid nature of cell membrane is due to proteins Carbohydrates Lipids All the above 5. Fluid -mosaic model was proposed by Robertson Petermitchell Daniel and Daveson Singer and Nicolson 6. The fluid nature of plasma membrane helps in Cell division Cell growth Endocytosis All 7. The selectively permeable nature of cell membrane is mainly contributed by Lipids Proteins Lipo-proteins Carbohydrates 8. Movement of mloecules across the cell membrane without the requirement of energy is called Active transport Passive transport Osmosis Plasmolysis 9. Movement of water through the plasma membrane by diffusion is called Plasmolysis Exosmosis Endosmosis Osmosis 10. Physical phenomenon that occur in Osmosis is diffusion Evaporation Percolation Plasmolysis 11. Driving force for active transport of ions across the cell membrane is AMP ATP GTP ADP 12. Carrier proteins which are present in the cell membrane facilitate the transport of Non-polar molecules Hydrophobic molecules polar- molecules Lipids 13. Non – living, rigid, protective covering for the plasma membrane of fungi and plant cell is Glycocalys Capsule Cell wall All 14. Cell wall materials found in Algal cell wall are Cellulose Galactans Mananns All the above 15. Common cell wall materials found plant cells are Cellulose Hemi cellulose Pectin All the above 16. Neigh bouring cells are joined by Middle lamellum Primary cell wall Secondary cell wall Plasma membrane 17. Cytoplasm of adjacent cells is interconnected by Plasma membrane Primary cell wall Plasmodesmata Pits 18. Cell organelles which are not included in the endomembrane system of a cell are Mitochondria Peroxysome Chloroplast All the above Loading … Related posts: NEET UG Botany MCQ-78 Cell The Unit of Life Test No-1 Cell The Unit of Life Test No-2 Cell The Unit of Life Test No-4 Cell The Unit of Life Test No-10 Powered by YARPP.