1. It is known as the 'site of protein synthesis in the cell', and synthesizes proteins. It is chiefly composed of RNA (Ribonucleic acid).   Cell Wall   Ribosome   Chromoplast   Endoplasmic Reticulum   Hint Half-n-half Clue   2. It performs intracellular digestion. It also helps in destroying foreign substances.   Lysosome   Chromoplast   Golgi Apparatus   Nuclear Membrane   Half-n-half Clue   3. It helps in the storage of water and several other substances, namely food, waste products and pigments. It also provides turgidity to the cell.   Nucleus   Nucleolus   Vacuole   Golgi Apparatus   Hint       4. It provides shape to the cell. It is semi-permeable, regulating the entry and exit of substances, namely solutes and ions.   Chloroplast   Vacuole   Cell Membrane   Nuclear Membrane   Hint       5. It initiates and regulates cell division. It also helps in forming spindle fibres, with the help of asters.   Nucleolus   Cell Wall   Nuclear Membrane   Centrosome   Half-n-half Clue   6. It synthesizes proteins by producing and storing RNA (Ribonucleic acid). At the same time, it orders ribosomes to synthesize proteins.   Nuclear Membrane   Chloroplast   Nucleolus   Cell Membrane   Half-n-half Clue   7. It contains chromatin fibres, which are made up of DNA (Deoxyribonucleic acid). After cell division takes place, these chromatin fibres undergo certain structural changes, and are called chromosomes. These chromosomes carry the hereditary information of the genes.   Chromoplast   Nuclear Membrane   Nucleoplasm   Leucoplast   Half-n-half Clue