1. It is a plastid. It helps in the storage of starch.   Cell Membrane   Leucoplast   Nuclear Membrane   Nucleus   Hint Half-n-half Clue   2. 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.   Lysosome   Nucleolus   Chloroplast   Centrosome   Hint       3. It synthesizes proteins by producing and storing RNA (Ribonucleic acid). At the same time, it orders ribosomes to synthesize proteins.   Endoplasmic Reticulum   Cell Membrane   Nucleolus   Ribosome   Half-n-half Clue   4. 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   Lysosome   Mitochondrion   Nucleoplasm   Half-n-half Clue   5. It is known as the 'site of protein synthesis in the cell', and synthesizes proteins. It is chiefly composed of RNA (Ribonucleic acid).   Golgi Apparatus   Cytoplasm   Nuclear Membrane   Ribosome   Half-n-half Clue   6. It controls and coordinates all the activities and functions of the cell. It plays a vital role in cell division.   Nuclear Membrane   Ribosome   Nucleus   Nucleolus   Hint       7. It helps in the storage of water and several other substances, namely food, waste products and pigments. It also provides turgidity to the cell.   Lysosome   Cell Wall   Vacuole   Centrosome   Hint