1. It performs intracellular digestion. It also helps in destroying foreign substances.   Ribosome   Vacuole   Lysosome   Cell Wall   Hint Half-n-half Clue   2. It helps in the storage of water and several other substances, namely food, waste products and pigments. It also provides turgidity to the cell.   Ribosome   Nucleolus   Vacuole   Chromoplast   Hint       3. 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.   Cytoplasm   Nucleoplasm   Centrosome   Golgi Apparatus   Half-n-half Clue   4. It controls and coordinates all the activities and functions of the cell. It plays a vital role in cell division.   Chloroplast   Nucleus   Ribosome   Nuclear Membrane   Hint       5. It is a plastid, containing a pigment called chlorophyll. This chlorophyll captures energy from sunlight and helps in the manufacture of food by the process of photosynthesis.   Nuclear Membrane   Leucoplast   Chloroplast   Nucleoplasm   Hint       6. It initiates and regulates cell division. It also helps in forming spindle fibres, with the help of asters.   Cell Membrane   Nucleolus   Nuclear Membrane   Centrosome   Half-n-half Clue   7. It provides protection, shape and rigidity to the cell. It is freely permeable, allowing substances in the form of solutions to enter and leave the cell without any hindrance.   Lysosome   Cell Wall   Nuclear Membrane   Centrosome   Hint