1. It has a living, flexible and thin structure. It possesses fine pores, making it semi-permeable. It is chiefly composed of lipo-proteins.   Chromoplast   Cell Membrane   Golgi Apparatus   Secretory Granule   Hint Hint       2. It has a non-living, rigid structure. It is freely permeable and is chiefly composed of cellulose.   Ribosome   Nucleus   Nucleolus   Cell Wall   Hint       3. It consists of an irregular network of double-walled tubular membrane. It has ribosomes attached to it.   Rough Endoplasmic Reticulum   Cell Wall   Nuclear Membrane   Nucleoplasm   Half-n-half Clue   4. It contains most of the cell organelles. It is composed of a mixture of water and soluble organic & inorganic compounds.   Cytoplasm   Secretory Granule   Cell Membrane   Nuclear Membrane   Half-n-half Clue   5. It contains one or two centrioles, and is surrounded by microtubules or the centrosphere. It is situated near the nucleus.   Ribosome   Nuclear Membrane   Smooth Endoplasmic Reticulum   Centrosome   Half-n-half Clue   6. It is a membranous sac budded off from the golgi apparatus. It contains several types of enzymes.   Centrosome   Ribosome   Lysosome   Chloroplast   Half-n-half Clue   7. It has a small, dense and granular structure. It is spherical in shape and is single-walled.   Nucleoplasm   Centrosome   Nucleolus   Ribosome   Hint