1. It is semi-permeable, allowing substances to enter and leave the nucleus of the cell. It also provides protection to the nucleus of the cell.   Nuclear Membrane   Leucoplast   Centrosome   Lysosome   Hint Half-n-half Clue   2. It provides support to the cell. It also helps in the synthesis and transport of proteins and fats.   Cell Membrane   Endoplasmic Reticulum   Golgi Apparatus   Centrosome   Half-n-half Clue   3. It controls and coordinates all the activities and functions of the cell. It plays a vital role in cell division.   Leucoplast   Nucleus   Chromoplast   Vacuole   Hint       4. It synthesizes proteins by producing and storing RNA (Ribonucleic acid). At the same time, it orders ribosomes to synthesize proteins.   Vacuole   Nucleolus   Lysosome   Cytoplasm   Half-n-half Clue   5. It initiates and regulates cell division. It also helps in forming spindle fibres, with the help of asters.   Nucleolus   Golgi Apparatus   Centrosome   Leucoplast   Half-n-half Clue   6. It helps in the storage of water and several other substances, namely food, waste products and pigments. It also provides turgidity to the cell.   Vacuole   Cell Membrane   Chloroplast   Leucoplast   Hint       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.   Endoplasmic Reticulum   Cell Membrane   Vacuole   Chloroplast   Hint