1. It is the house of all metabolic activities and functions in the cell. In other words, it contains most of the cell organelles, each of which perform a specific function.   Mitochondrion   Golgi Apparatus   Lysosome   Cytoplasm   Hint Half-n-half Clue   2. It is known as the 'site of protein synthesis in the cell', and synthesizes proteins. It is chiefly composed of RNA (Ribonucleic acid).   Cell Membrane   Nucleolus   Ribosome   Endoplasmic Reticulum   Half-n-half Clue   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.   Nucleoplasm   Nucleus   Leucoplast   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.   Nucleolus   Cell Membrane   Nucleus   Golgi Apparatus   Hint       5. It is a plastid. It helps in the storage of starch.   Vacuole   Leucoplast   Ribosome   Mitochondrion   Half-n-half Clue   6. It initiates and regulates cell division. It also helps in forming spindle fibres, with the help of asters.   Lysosome   Nuclear Membrane   Centrosome   Leucoplast   Half-n-half Clue   7. 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.   Chloroplast   Mitochondrion   Nucleoplasm   Cell Wall   Hint