1. It is known as the 'site of protein synthesis in the cell', and synthesizes proteins. It is chiefly composed of RNA (Ribonucleic acid).   Vacuole   Ribosome   Chloroplast   Chromoplast   Hint Half-n-half Clue   2. It provides shape to the cell. It is semi-permeable, regulating the entry and exit of substances, namely solutes and ions.   Cell Membrane   Chromoplast   Centrosome   Cytoplasm   Hint       3. It is a plastid, containing pigments such as xanthophyll (yellow in color) and carotene (orangish-red in color). These pigments impart color to flowers and fruits of plants.   Chromoplast   Nucleoplasm   Centrosome   Nucleolus   Half-n-half Clue   4. It provides support to the cell. It also helps in the synthesis and transport of proteins and fats.   Endoplasmic Reticulum   Centrosome   Mitochondrion   Nuclear Membrane   Half-n-half Clue   5. 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.   Centrosome   Cell Wall   Nucleus   Cytoplasm   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.   Centrosome   Cell Membrane   Nucleoplasm   Nucleus   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.   Lysosome   Mitochondrion   Chloroplast   Ribosome   Hint