1. 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.   Centrosome   Chloroplast   Cell Wall   Cytoplasm   Hint Hint       2. It performs intracellular digestion. It also helps in destroying foreign substances.   Ribosome   Lysosome   Cell Membrane   Cytoplasm   Half-n-half Clue   3. It is known as the 'site of protein synthesis in the cell', and synthesizes proteins. It is chiefly composed of RNA (Ribonucleic acid).   Leucoplast   Cell Wall   Ribosome   Nucleus   Half-n-half Clue   4. It is the site of ATP (Adenosine triphosphate) synthesis. It also synthesizes respiratory enzymes.   Vacuole   Mitochondrion   Centrosome   Nucleus   Half-n-half Clue   5. 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.   Vacuole   Nucleolus   Cell Wall   Chloroplast   Hint       6. 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.   Cytoplasm   Leucoplast   Cell Wall   Nuclear Membrane   Half-n-half Clue   7. It synthesizes proteins by producing and storing RNA (Ribonucleic acid). At the same time, it orders ribosomes to synthesize proteins.   Nucleolus   Vacuole   Ribosome   Chromoplast   Half-n-half Clue